NVT

Line plots across dimensions of each concept
Line plots across concepts
Tables

Plots across concepts

IncomeStatement

Expenses

Balance Sheet

Assets

Current Assets

NonCurrent Assets

PropertyPlantAndEquipmentNet

Liabilities

Current Liabilities

Noncurrent Liabilities

Stockholders Equity

Per Share

CashFlow

NetCashProvidedByUsedInOperatingActivities

NetCashProvidedByUsedInInvestingActivities

NetCashProvidedByUsedInFinancingActivities

DividendsAndRepurchase

OperatingLeaseLiability

LesseeOperatingLeaseLiabilityPaymentsDue

FiniteLivedIntangibleAssets

InventoryNet

Tables

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock	█████████████▁▁▁▁	168.1	167.7	168.2	170.1	169.9	169.8	169.5	169.2	169.1	174.7	177.2	179.4	179.0	0.0	0.0	0.0	0.0	NA
us-gaap:CommonStockSharesIssued	███████▁███	168.1	167.7	168.2	170.1	169.9	169.8	169.5	0.0	169.1	174.7	177.2	NA	NA	NA	NA	NA	NA	NA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding	█▁	169.6	168.8	NA	170.0	170.4	171.0	NA	170.3	173.0	178.2	NA	181.5	180.8	181.2	NA	181.2	181.2	181.2
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic	█▁	167.9	167.7	NA	170.0	169.9	169.8	NA	169.1	171.5	176.5	NA	179.3	178.5	179.0	NA	179.0	179.0	179.0
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	▁█	0.8	2.0	NA	4.6	4.5	2.9	NA	2.6	2.1	1.9	NA	0.9	0.9	0.4	NA	0.4	0.4	0.4
us-gaap:EarningsPerShareBasic		NA	NA	0.28	-0.82	0.15	0.11	0.27	0.35	0.36	0.32	0.38	0.38	0.24	0.29	0.87	0.45	0.39	0.31
us-gaap:EarningsPerShareDiluted		NA	NA	0.28	-0.82	0.15	0.11	0.27	0.35	0.35	0.32	0.37	0.38	0.24	0.29	0.86	0.44	0.39	0.31

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Operating Margin us-gaap:StatementBusinessSegments nvt:ElectricalandFasteningSolutionsSegment	█▄▄▄▁▃▃▄▅▂▃▄▄▂▁▃▃▁	169.2	147.9	147.4	147.7	132.1	141.9	141.9	149.6	150.7	137.4	138.7	147.0	148.1	136.9	131.5	139.8	139.2	130.3
Operating Margin us-gaap:StatementBusinessSegments nvt:EnclosuresSegment	█▆▂▃▁▄▄▅▅▄▄▄▄▄▂▃▂▂	300.4	277.0	230.4	244.7	219.3	258.5	255.7	262.6	260.0	255.5	250.5	259.5	255.6	254.1	232.6	241.7	234.1	226.5
Operating Margin us-gaap:StatementBusinessSegments nvt:ThermalManagementSegment	▄▃▅▃▁▃▇▅▄▅█▆▅▅█▆▅▅	131.7	124.0	143.4	116.9	95.8	120.5	169.1	147.6	128.8	145.1	178.9	157.4	139.0	147.9	177.8	159.1	139.9	145.4

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
TTM Greenblatt ROC _ _	██▇▁▇▇██████▇▇▇	88.3	80.4	74.4	-141.6	45.3	60.3	82.5	86.1	87.0	77.5	86.2	93.7	65.3	65.6	59.4	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:ComprehensiveIncomeNetOfTax	▆▆▆▁▅▅▅▆▆▅▅▆▄▆█▅▆▆	59.7	87.7	59.4	-142.9	27.6	12.1	47.7	54.2	76.8	53.2	50.7	73.0	2.5	53.9	162.9	47.9	89.8	64.6
us-gaap:CostOfGoodsAndServicesSold	█▆▄▃▁▄▆▅▅▅	366.1	339.9	324.2	312.5	286.9	325.6	347.1	335.7	327.3	328.1	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:GrossProfit	█▆▄▄▁▄▇▇▆▆▆▇▇▆▆▇▆▅	235.2	209.0	197.0	196.8	160.3	195.3	219.6	224.1	212.2	209.9	218.7	229.1	219.4	208.9	213.4	220.1	209.7	198.7
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	▇▇▇▁▆▇▆▇▇▇▇█▇▇▇██▇	79.6	71.7	56.5	-150.8	35.2	49.6	43.6	73.6	74.1	66.1	72.9	81.1	50.9	63.8	61.2	98.0	88.0	66.1
us-gaap:IncomeTaxExpenseBenefit	▇▇▇▆▇█▆▇▇▇▇▇▇▇▁▇▇▇	13.4	6.3	9.4	-12.1	9.4	31.0	-1.9	13.7	13.2	9.7	5.9	12.9	7.6	11.5	-94.8	18.3	17.3	10.8
us-gaap:InterestIncomeExpenseNet	▄▄	-8.1	-8.1	NA	-8.5	-9.4	-9.9	NA	-11.6	-11.9	-10.5	NA	-11.7	-9.3	-0.6	NA	-0.2	-0.1	-0.1
us-gaap:InterestIncomeExpenseNet us-gaap:ConsolidationItems us-gaap:MaterialReconcilingItems	▄▄	-8.1	-8.1	NA	-8.5	-9.4	-9.9	NA	-11.6	-11.9	-10.5	NA	-11.7	-9.3	-0.6	NA	-0.2	-0.1	-0.1
us-gaap:NetIncomeLoss		NA	NA	47.1	-138.7	25.8	18.6	45.5	59.9	60.9	56.4	67.0	68.2	43.3	52.3	156.0	79.7	70.7	55.3
us-gaap:OperatingIncomeLoss	█▇▇▁▆▇███▇██▇▇▇██▇	88.3	80.4	74.4	-141.6	45.3	60.3	82.5	86.1	87.0	77.5	86.2	93.7	65.3	65.6	59.4	99.6	89.5	67.6
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	▆▆▇▆▆▃▆▅▆▆▄▆▁▆▆▂█▇	3.8	3.0	12.0	1.2	6.6	-23.5	6.6	-8.0	3.2	3.0	-15.0	4.3	-39.8	2.3	6.3	-31.8	19.3	8.6
us-gaap:OtherComprehensiveIncomeLossNetOfTax	▁█	-6.5	22.3	NA	-4.2	1.8	-6.5	NA	-5.7	15.9	-3.2	-16.3	4.8	-40.8	1.6	6.9	-31.8	19.1	9.3
us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome	▁█	-6.5	22.3	NA	-4.2	1.8	-6.5	NA	-5.7	15.9	-3.2	-16.3	4.8	-40.8	1.6	6.9	-31.8	19.1	9.3
us-gaap:ProfitLoss	▆▆▅▁▅▅▅▆▆▆▆▆▅▆█▆▆▆	66.2	65.4	47.1	-138.7	25.8	18.6	45.5	59.9	60.9	56.4	67.0	68.2	43.3	52.3	156.0	79.7	70.7	55.3
us-gaap:ResearchAndDevelopmentExpense	▆▅▂▂▃▇▇▆▇█▇▅▄▅▁▂▄▄	11.7	11.4	10.4	10.5	10.7	11.9	12.0	11.8	12.1	12.3	11.9	11.3	11.0	11.4	10.1	10.5	10.9	11.0
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax	█▆▄▄▁▄▆▆▅▅▆▆▅▅▅▅▄▃	601.3	548.9	521.2	509.3	447.2	520.9	566.7	559.8	539.5	538.0	568.1	563.9	542.7	538.9	541.9	540.6	513.2	502.2
us-gaap:SellingGeneralAndAdministrativeExpense	▆▃▂▂▁▄▅▅▃▄▄▄█▆█▂▂▄	135.2	117.2	112.2	107.4	104.3	123.1	125.1	126.2	113.1	120.1	120.6	124.1	143.1	131.9	143.9	110.0	109.3	120.1

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:Assets	▄▁▁▁▄▄▃▃▂▂▂▃▃█▄	4709.8	4398.0	4366.1	4410.6	4712.4	4730.2	4640.3	4636.1	4464.8	4474.7	4552.7	4583.1	4576.8	5301.1	4725.0	NA	NA	NA
us-gaap:Liabilities	█▇▇▇██▇▇▆▆▆▆▆▅▁	2217.0	1948.0	1956.3	1997.2	2134.2	2153.6	2047.8	2069.6	1927.0	1839.6	1865.6	1867.5	1880.4	1660.9	933.7	NA	NA	NA
us-gaap:LiabilitiesAndStockholdersEquity	▄▁▁▁▄▄▃▃▂▂▂▃▃█▄	4709.8	4398.0	4366.1	4410.6	4712.4	4730.2	4640.3	4636.1	4464.8	4474.7	4552.7	4583.1	4576.8	5301.1	4725.0	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:AssetsCurrent	▃▂▁▂▂▂▂▂▁▁▂▂▂█▁	902.5	799.0	764.4	816.0	883.1	885.8	798.7	806.4	748.2	746.2	846.5	835.3	819.7	1524.7	732.6	NA	NA	NA
us-gaap:CashAndCashEquivalentsAtCarryingValue		NA	NA	122.5	NA	NA	NA	106.4	49.5	25.3	32.6	159.0	106.0	91.5	836.7	26.9	27.2	36.0	28.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	▄▄▄▅█▆▄▂▁▁▅	101.8	104.9	122.5	159.8	235.0	187.9	106.4	49.5	25.3	32.6	159.0	NA	NA	NA	26.9	NA	NA	NA
us-gaap:InventoryNet	█▃▃▃▄▄▄▆▄▄▂▃▁▁▁	275.4	237.9	235.2	238.9	247.5	249.0	244.7	259.1	248.3	244.4	228.2	237.1	226.7	225.4	224.1	NA	NA	NA
us-gaap:InventoryFinishedGoods	█▃▃▄▅▅▆▆▅▅▂▃▂▂▁	161.0	141.2	143.5	144.1	150.1	149.8	152.0	155.2	150.6	149.0	139.8	141.2	138.8	137.0	134.6	NA	NA	NA
us-gaap:InventoryRawMaterialsAndSupplies	█▃▂▃▄▄▂▅▄▃▁▃▁▁▁	84.2	69.9	67.3	69.3	71.6	71.6	67.1	75.3	71.3	68.9	63.1	70.0	62.9	63.0	64.3	NA	NA	NA
us-gaap:OtherAssetsCurrent	▅▃▁▁▃▅▅▆▆▆▅▇█▄▇	116.0	104.5	92.9	89.9	100.4	115.8	113.3	122.8	125.0	126.5	118.4	126.7	136.5	107.4	132.3	NA	NA	NA
us-gaap:MachineryAndEquipmentGross	█▇▆▆▅▅▄▄▃▂▂▂▁▂▁	479.8	465.2	461.4	454.3	450.5	444.0	440.4	430.1	420.5	416.1	410.8	413.7	405.3	408.4	402.0	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:PropertyPlantAndEquipmentGross	█▇▇▆▅▄▅▄▃▂▂▂▁▁▁	735.3	714.2	718.2	697.0	685.2	676.3	679.1	668.0	649.5	641.5	637.1	637.4	624.5	630.8	622.8	NA	NA	NA
us-gaap:ConstructionInProgressGross	█▇█▅▄▃▃▄▃▂▃▁▂▁▂	29.9	27.0	30.3	21.7	17.6	16.6	16.5	18.9	15.0	13.5	14.6	9.7	13.4	9.3	11.5	NA	NA	NA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	█▇▇▆▅▄▄▃▃▃▂▂▂▂▁	443.7	431.5	428.8	418.9	408.4	397.7	394.6	387.7	385.0	376.9	372.3	373.4	363.4	365.7	357.0	NA	NA	NA
us-gaap:AmortizationOfIntangibleAssets	█▁	16.0	15.9	NA	16.1	16.0	16.0	NA	15.4	15.1	15.1	NA	15.2	15.2	15.4	NA	15.4	15.3	15.3
us-gaap:PropertyPlantAndEquipmentNet	█▆▇▅▅▅▆▅▂▂▂▂▁▂▂	291.6	282.7	289.4	278.1	276.8	278.6	284.5	280.3	264.5	264.6	264.8	264.0	261.1	265.1	265.8	NA	NA	NA
us-gaap:Goodwill	▄▁▁▁██▇█▆▆▆▆▆▆▆	2193.3	2094.3	2098.2	2090.7	2297.3	2290.8	2279.1	2286.1	2235.5	2233.9	2234.3	2237.6	2235.7	2241.3	2238.2	NA	NA	NA
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill		NA	NA	273.1	NA	NA	NA	281.3	NA	NA	NA	281.3	NA	NA	NA	281.3	NA	NA	NA
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass us-gaap:TradeNames	▁▁▁▁███████████	273.1	273.1	273.1	273.1	281.3	281.3	281.3	281.3	281.3	281.3	281.3	281.3	281.3	281.3	281.3	NA	NA	NA
us-gaap:IntangibleAssetsNetExcludingGoodwill	▅▁▂▂▃▄▄▅▄▄▅▆▆▇█	1179.0	1088.7	1105.5	1117.6	1139.6	1154.4	1160.5	1174.7	1144.3	1158.7	1173.3	1190.0	1204.2	1220.7	1236.6	NA	NA	NA
us-gaap:FiniteLivedIntangibleAssetsNet	▆▁▂▂▃▄▄▅▃▄▅▆▆▇█	905.9	815.6	832.4	844.5	858.3	873.1	879.2	893.4	863.0	877.4	892.0	908.7	922.9	939.4	955.3	NA	NA	NA
us-gaap:OperatingLeaseRightOfUseAsset	█▅▅▅▅▅▅▅▅▅▁	78.4	49.1	45.6	46.8	47.3	43.9	44.2	46.5	41.0	41.7	0.0	NA	NA	NA	NA	NA	NA	NA
us-gaap:OtherAssetsNoncurrent	▅▄▃▃▄▄▄▃▂▂▁▂▂▁█	143.4	133.3	108.6	108.2	115.6	120.6	117.5	88.6	72.3	71.3	33.8	56.2	56.1	49.3	251.8	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:AccountsPayableCurrent	█▄▄▁▁▂▅▁▁▂▅▂▂▂▄	219.1	176.9	171.1	139.1	134.9	150.9	187.1	139.6	139.3	149.1	186.4	141.9	152.7	141.7	174.1	NA	NA	NA
us-gaap:DebtCurrent	█████▇▆▆▄▄▃▂▁	20.0	20.0	20.0	20.0	20.0	18.8	17.5	16.8	15.0	13.8	12.5	11.3	10.3	NA	0.0	NA	NA	NA
us-gaap:DividendsPayableCurrent	▅▁▁▃▂▂▂▂▂▅▇█	30.4	29.3	29.4	29.8	29.7	29.7	29.7	29.6	29.6	30.6	31.0	31.4	NA	NA	0.0	NA	NA	NA
us-gaap:LiabilitiesCurrent	█▆▅▄▃▄▆▅▃▄▅▄▃▁▃	535.8	463.8	450.0	409.9	386.2	409.2	462.2	437.3	400.0	410.2	461.7	425.3	387.4	328.7	390.9	NA	NA	NA
us-gaap:LongTermDebtCurrent	█████▇▆▆▄▄▃▂▁	20.0	20.0	20.0	20.0	20.0	18.8	17.5	16.8	15.0	13.8	12.5	11.3	10.3	NA	0.0	NA	NA	NA
us-gaap:OperatingLeaseLiabilityCurrent	█▇▇▇▇▇▇▇▆▆▁	18.0	14.2	14.2	14.3	14.4	14.5	14.7	15.4	14.1	13.3	0.0	NA	NA	NA	NA	NA	NA	NA
us-gaap:OtherAccruedLiabilitiesCurrent	▇▆▆▆▅▅▆█▆▆▆▇▄▁▂	201.4	190.6	188.5	182.0	169.8	178.6	185.7	210.9	181.7	183.0	187.0	198.1	160.6	126.8	141.3	NA	NA	NA
us-gaap:OtherLiabilitiesCurrent	▆▇▆█▆█▅▄▅██▆▅▁▂	61.2	66.4	60.3	68.1	61.9	69.1	58.7	55.8	60.1	69.3	69.3	61.3	59.5	43.9	46.8	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:LongTermDebt	▇▆▇▇██▇█▇▆▇▆▇▆▁	1083.9	923.2	948.0	1032.8	1187.6	1192.4	1064.6	1133.8	1041.1	925.6	941.7	932.7	983.7	793.0	0.0	NA	NA	NA
us-gaap:LongTermDebtNoncurrent	▇▆▆▇██▇█▇▆▆▆▇▆▁	1103.9	943.2	928.0	1052.8	1207.6	1211.2	1047.1	1150.6	1056.1	939.4	929.2	944.0	994.0	793.0	0.0	NA	NA	NA
us-gaap:DeferredIncomeTaxLiabilitiesNet	▂▁▁▃██▃	231.3	229.4	230.1	234.7	253.8	254.0	237.8	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	▇▇█▆▅▅▅▁▁▁▁▁▁▂▁	231.8	228.7	237.9	220.0	211.0	208.2	207.2	175.3	178.7	175.4	177.9	179.0	175.6	188.7	176.7	NA	NA	NA
us-gaap:OtherLiabilitiesNoncurrent	█▄▅▄▄▃▃▃▂▅▁▁▂▃▃	134.2	102.9	110.3	99.8	95.6	89.8	93.5	90.4	84.2	105.7	72.0	74.8	78.5	85.5	86.7	NA	NA	NA
us-gaap:OperatingLeaseLiabilityNoncurrent	█▅▅▅▅▅▅▅▄▅▁	64.7	39.2	35.7	36.7	37.1	33.6	33.7	35.3	31.1	32.7	0.0	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo		NA	NA	12.0	11.3	NA	NA	11.4	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree		NA	NA	7.9	7.5	NA	NA	7.5	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour		NA	NA	5.9	5.6	NA	NA	4.4	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive		NA	NA	4.6	4.5	NA	NA	3.5	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive		NA	NA	10.0	NA	NA	NA	10.9	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	▁▁▁▁▂▂▂▂▂▂▂▃▂▇███▆	2492.8	2450.0	2409.8	2413.4	2578.2	2576.6	2592.5	2566.5	2537.8	2635.1	2687.1	2715.6	2696.4	3640.2	3791.3	3762.7	3818.2	3495.1
us-gaap:AdditionalPaidInCapital	▁▁▂▂▂▂▂▂▂▆█	2478.2	2464.5	2482.6	2516.2	2508.3	2504.5	2502.7	2494.8	2490.7	2635.2	2709.7	NA	NA	NA	0.0	NA	NA	NA
us-gaap:RetainedEarningsAccumulatedDeficit	▄▃▂▁▇██▇▆▅▄	92.3	56.7	20.7	3.0	171.5	175.5	186.7	170.8	140.5	109.2	83.4	NA	NA	3695.7	0.0	NA	NA	NA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax	▅▆▃▁▂▂▃▂▃▁▁▃▃██	-79.4	-72.9	-95.2	-107.5	-103.3	-105.1	-98.6	-100.8	-95.1	-111.0	-107.8	-91.5	-96.3	-55.5	-57.1	NA	NA	NA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	█▁	6.4	-0.2	NA	5.9	4.2	1.9	NA	4.1	4.1	4.3	3.5	3.9	2.5	NA	NA	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities	▅▃▇▆▅▂█▅▄▁▇▅▃▃▆█▃▅	93.4	49.9	140.3	113.2	83.8	6.7	178.8	99.7	70.9	-13.1	160.9	101.0	45.5	36.1	111.3	173.3	38.0	87.1
us-gaap:NetCashProvidedByUsedInInvestingActivities	▁████▇█▄█████████▇	-236.7	-13.7	-14.1	-8.1	-6.7	-36.1	-9.6	-139.2	-8.3	-3.2	-10.9	-18.8	-4.3	-5.1	-6.4	-6.3	-3.7	-24.8
us-gaap:NetCashProvidedByUsedInFinancingActivities	▅▄▄▄▄▅▄▅▄▄▄▄▁█▄▄▄▄	138.5	-52.4	-172.3	-182.7	-33.8	116.3	-111.7	63.3	-69.4	-108.6	-91.5	-76.6	-781.0	782.5	-117.8	-166.8	-23.8	-51.1
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	▅▅▄▃▇█▇▆▅▁	-3.1	-17.6	-37.3	-75.2	47.1	81.5	56.9	24.2	-7.3	-126.4	NA	NA	NA	NA	NA	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:IncreaseDecreaseInAccountsPayable	▆▅▇▅▃▂█▄▄▁█▄▆▂▇▃▄▄	23.0	10.1	27.5	3.2	-16.0	-33.3	45.7	-9.6	-3.2	-40.8	41.5	-9.7	16.2	-34.6	33.8	-10.3	-0.2	-6.3
us-gaap:IncreaseDecreaseInAccountsReceivable	▇█▃▇▂▅▁▅▅▅▃▅▆▅▃▆▅▅	27.0	42.2	-20.5	24.1	-34.5	2.6	-43.8	9.6	6.1	1.5	-20.4	-0.6	21.0	1.3	-15.4	13.1	11.1	9.4
us-gaap:IncreaseDecreaseInInventories	█▆▃▂▄▆▁▄▅█▃▇▇▄▄▄▆▇	14.3	6.2	-9.0	-12.2	-3.2	6.1	-19.3	-1.3	2.9	16.8	-6.5	9.8	10.7	-2.0	-4.5	-4.4	8.3	9.5
us-gaap:NetCashProvidedByUsedInOperatingActivities	▅▃▇▆▅▂█▅▄▁▇▅▃▃▆█▃▅	93.4	49.9	140.3	113.2	83.8	6.7	178.8	99.7	70.9	-13.1	160.9	101.0	45.5	36.1	111.3	173.3	38.0	87.1
us-gaap:NetIncomeLoss		NA	NA	47.1	-138.7	25.8	18.6	45.5	59.9	60.9	56.4	67.0	68.2	43.3	52.3	156.0	79.7	70.7	55.3
us-gaap:ProfitLoss	▆▆▅▁▅▅▅▆▆▆▆▆▅▆█▆▆▆	66.2	65.4	47.1	-138.7	25.8	18.6	45.5	59.9	60.9	56.4	67.0	68.2	43.3	52.3	156.0	79.7	70.7	55.3
us-gaap:ShareBasedCompensation	█▁▅▅▆▃▅▅▆▆▅▅▄▄▅▄▄█	6.4	-0.2	3.9	3.9	4.2	1.9	3.7	4.0	4.1	4.3	3.5	3.9	3.0	2.4	3.2	2.6	2.6	6.2

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities	▁████▇█▄█████████▇	-236.7	-13.7	-14.1	-8.1	-6.7	-36.1	-9.6	-139.2	-8.3	-3.2	-10.9	-18.8	-4.3	-5.1	-6.4	-6.3	-3.7	-24.8
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment	▃▄▆▃▂▄▄▄▃▃▄█▁▂▂▂▃▄	8.0	9.9	14.6	8.2	7.0	10.2	9.8	11.4	8.4	9.2	11.0	18.8	4.3	5.4	6.7	6.2	7.6	11.3

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities	▅▄▄▄▄▅▄▅▄▄▄▄▁█▄▄▄▄	138.5	-52.4	-172.3	-182.7	-33.8	116.3	-111.7	63.3	-69.4	-108.6	-91.5	-76.6	-781.0	782.5	-117.8	-166.8	-23.8	-51.1
us-gaap:RepaymentsOfLongTermDebt	▂▂▂▂▂▂▂▂▁▁▁█▁▁▁	5.0	5.0	5.0	5.0	3.7	3.8	4.4	4.7	2.5	2.5	2.5	50.0	0.0	0.0	0.0	NA	NA	NA
us-gaap:PaymentsOfDividendsCommonStock	████████████▁▁▁	29.4	29.4	29.8	29.7	29.8	29.7	29.6	29.6	30.5	31.0	31.5	31.4	0.0	0.0	0.0	NA	NA	NA
us-gaap:PaymentsForRepurchaseOfCommonStock	▁▂▃▁▁▁▁▁█▄▃▁▁▁	0.0	20.0	40.0	0.0	0.0	3.2	0.0	0.0	159.6	76.1	56.0	0.0	0.0	0.0	NA	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31

Shares Outstanding

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2016-12-31	2015-12-31
Value	168	167	168	170	169	169	169	169	169	174	177	179	179	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of SharesOutstanding	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	0.0	0.0	0.0	0.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31
Value	168	167	168	170	169	169	169	0.0	169	174	177
Percentage of CommonStockSharesIssued	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	169	168	170	170	171	170	173	178	181	180	181	181	181	181
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	167	167	170	169	169	169	171	176	179	178	179	179	179	179
Percentage of WeightedAverageNumberOfSharesOutstandingBasic	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	800000.0	2000000.0	4600000.0	4500000.0	2900000.0	2600000.0	2100000.0	1900000.0	900000.0	900000.0	400000.0	400000.0	400000.0	400000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	0.28	-0.82	0.15	0.11	0.27	0.35	0.36	0.32	0.38	0.38	0.24	0.29	0.87	0.45	0.39	0.31
Percentage of EarningsPerShareBasic	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	0.28	-0.82	0.15	0.11	0.27	0.35	0.35	0.32	0.37	0.38	0.24	0.29	0.86	0.44	0.39	0.31
Percentage of EarningsPerShareDiluted	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	59	87	59	-142.9	27	12	47	54	76	53	50	73	2.5	53	162	47	89	64
Percentage of ComprehensiveIncomeNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.9	16.0	11.4	-28.1	6.2	2.3	8.4	9.7	14.2	9.9	8.9	12.9	0.5	10.0	30.1	8.9	17.5	12.9

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	366	339	324	312	286	325	347	335	327	328
Percentage of CostOfGoodsAndServicesSold	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	60.9	61.9	62.2	61.4	64.2	62.5	61.2	60.0	60.7	61.0

Gross Profit

us-gaap:GrossProfit

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	235	209	197	196	160	195	219	224	212	209	218	229	219	208	213	220	209	198
Percentage of GrossProfit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	39.1	38.1	37.8	38.6	35.8	37.5	38.8	40.0	39.3	39.0	38.5	40.6	40.4	38.8	39.4	40.7	40.9	39.6

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	79	71	56	-150.8	35	49	43	73	74	66	72	81	50	63	61	98	88	66
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	13.2	13.1	10.8	-29.6	7.9	9.5	7.7	13.1	13.7	12.3	12.8	14.4	9.4	11.8	11.3	18.1	17.1	13.2

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	13	6.3	9.4	-12.1	9.4	31	-1.9	13	13	9.7	5.9	12	7.6	11	-94.8	18	17	10
Percentage of IncomeTaxExpenseBenefit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	2.2	1.1	1.8	-2.4	2.1	6.0	-0.3	2.4	2.4	1.8	1.0	2.3	1.4	2.1	-17.5	3.4	3.4	2.2

Interest Income Expense Net

us-gaap:InterestIncomeExpenseNet

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	-8100000.0	-8100000.0	-8500000.0	-9400000.0	-9900000.0	-11600000.0	-11900000.0	-10500000.0	-11700000.0	-9300000.0	-600000.0	-200000.0	-100000.0	-100000.0
Percentage of InterestIncomeExpenseNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-1.3	-1.5	-1.7	-2.1	-1.9	-2.1	-2.2	-2.0	-2.1	-1.7	-0.1	-0.0	-0.0	-0.0

us-gaap:InterestIncomeExpenseNet us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	-8100000.0	-8100000.0	-8500000.0	-9400000.0	-9900000.0	-11600000.0	-11900000.0	-10500000.0	-11700000.0	-9300000.0	-600000.0	-200000.0	-100000.0	-100000.0
Percentage of InterestIncomeExpenseNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-1.3	-1.5	-1.7	-2.1	-1.9	-2.1	-2.2	-2.0	-2.1	-1.7	-0.1	-0.0	-0.0	-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Net Income Loss

us-gaap:NetIncomeLoss

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	47	-138.7	25	18	45	59	60	56	67	68	43	52	156	79	70	55
Percentage of NetIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.0	-27.2	5.8	3.6	8.0	10.7	11.3	10.5	11.8	12.1	8.0	9.7	28.8	14.7	13.8	11.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	88	80	74	-141.6	45	60	82	86	87	77	86	93	65	65	59	99	89	67
Percentage of OperatingIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	14.7	14.6	14.3	-27.8	10.1	11.6	14.6	15.4	16.1	14.4	15.2	16.6	12.0	12.2	11.0	18.4	17.4	13.5

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:OperatingSegments

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	110	97	96	100	68	81	108	114	104	96	108	115	107	93	100	119	110	92
Percentage of OperatingIncomeLoss	124.8	120.8	130.2	-71.3	150.8	135.2	131.8	133.1	120.5	124.1	125.6	122.7	164.8	142.5	169.0	120.2	123.7	136.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	18.3	17.7	18.6	19.8	15.3	15.6	19.2	20.5	19.4	17.9	19.1	20.4	19.8	17.4	18.5	22.1	21.6	18.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments

nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	48	39	41	40	34	33	35	41	41	31	33	38	40	31	32	35	41	31
Percentage of OperatingIncomeLoss	55.4	48.8	55.5	-28.7	76.6	55.6	43.2	48.0	47.8	40.3	38.3	41.5	62.6	48.3	54.7	35.3	46.1	46.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	8.1	7.1	7.9	8.0	7.8	6.4	6.3	7.4	7.7	5.8	5.8	6.9	7.5	5.9	6.0	6.5	8.0	6.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:ElectricalandFasteningSolutionsSegment	28.9	26.5	0.0	27.6	26.3	23.6	0.0	27.6	27.6	22.7	0.0	26.5	27.6	23.2	0.0	25.2	29.7	24.3

nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	53	48	35	44	28	40	39	47	48	45	38	47	47	40	34	44	45	40
Percentage of OperatingIncomeLoss	60.8	60.7	47.6	-31.1	62.3	67.8	48.4	55.3	55.4	58.8	45.1	50.6	73.4	61.9	58.1	44.3	51.1	59.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	8.9	8.9	6.8	8.6	6.3	7.9	7.0	8.5	8.9	8.5	6.8	8.4	8.8	7.5	6.4	8.2	8.9	8.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:EnclosuresSegment	17.9	17.6	0.0	18.0	12.9	15.8	0.0	18.1	18.5	17.8	0.0	18.3	18.7	16.0	0.0	18.2	19.5	17.8

nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	24	21	33	25	14	20	47	38	25	34	48	41	30	33	50	43	27	26
Percentage of OperatingIncomeLoss	28.2	26.1	45.3	-18.0	31.8	33.7	57.2	44.7	29.1	44.3	56.1	44.7	46.6	51.1	84.8	43.5	30.8	38.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	4.1	3.8	6.5	5.0	3.2	3.9	8.3	6.9	4.7	6.4	8.5	7.4	5.6	6.2	9.3	8.0	5.4	5.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:ThermalManagementSegment	18.9	16.9	0.0	21.8	15.0	16.8	0.0	26.1	19.6	23.6	0.0	26.6	21.9	22.7	0.0	27.2	19.7	17.9

us-gaap:AllOtherSegments

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	-17.3	-11.9	-13.5	-9.3	-9.0	-13.2	-14.0	-12.8	-10.3	-14.9	-12.0	-13.2	-11.6	-12.3	-17.0	-2.9	-3.9	-5.8
Percentage of OperatingIncomeLoss	-19.6	-14.8	-18.1	6.6	-19.9	-21.9	-17.0	-14.9	-11.8	-19.2	-13.9	-14.1	-17.8	-18.8	-28.6	-2.9	-4.4	-8.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-2.9	-2.2	-2.6	-1.8	-2.0	-2.5	-2.5	-2.3	-1.9	-2.8	-2.1	-2.3	-2.1	-2.3	-3.1	-0.5	-0.8	-1.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AllOtherSegments	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	3.8	3.0	12	1.2	6.6	-23.5	6.6	-8.0	3.2	3.0	-15.0	4.3	-39.8	2.3	6.3	-31.8	19	8.6
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.6	0.5	2.3	0.2	1.5	-4.5	1.2	-1.4	0.6	0.6	-2.6	0.8	-7.3	0.4	1.2	-5.9	3.8	1.7

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	-6.5	22	-4.2	1.8	-6.5	-5.7	15	-3.2	-16.3	4.8	-40.8	1.6	6.9	-31.8	19	9.3
Percentage of OtherComprehensiveIncomeLossNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-1.1	4.1	-0.8	0.4	-1.2	-1.0	2.9	-0.6	-2.9	0.9	-7.5	0.3	1.3	-5.9	3.7	1.9

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	-6.5	22	-4.2	1.8	-6.5	-5.7	15	-3.2	-16.3	4.8	-40.8	1.6	6.9	-31.8	19	9.3
Percentage of OtherComprehensiveIncomeLossNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-1.1	4.1	-0.8	0.4	-1.2	-1.0	2.9	-0.6	-2.9	0.9	-7.5	0.3	1.3	-5.9	3.7	1.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Profit Loss

us-gaap:ProfitLoss

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	66	65	47	-138.7	25	18	45	59	60	56	67	68	43	52	156	79	70	55
Percentage of ProfitLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	11.0	11.9	9.0	-27.2	5.8	3.6	8.0	10.7	11.3	10.5	11.8	12.1	8.0	9.7	28.8	14.7	13.8	11.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-03-31
Value	66	65	-138.7	25	18	59	60	56	67	68	42	52	55
Percentage of ProfitLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	97.2	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	11.0	11.9	-27.2	5.8	3.6	10.7	11.3	10.5	11.8	12.1	7.8	9.7	11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	11	11	10	10	10	11	12	11	12	12	11	11	11	11	10	10	10	11
Percentage of ResearchAndDevelopmentExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	1.9	2.1	2.0	2.1	2.4	2.3	2.1	2.1	2.2	2.3	2.1	2.0	2.0	2.1	1.9	1.9	2.1	2.2

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	601	548	521	509	447	520	566	559	539	538	568	563	542	538	541	540	513	502
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EquitySecuritiesByIndustry

nvt:CommercialAndResidentialSector

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	164	148	166	157	128	153	172	163	154	147	155	153	149	146	140	139	134
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	27.3	27.1	32.0	30.8	28.8	29.5	30.4	29.3	28.6	27.3	27.4	27.3	27.5	27.1	26.0	27.1	26.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	27.3	27.1	32.0	30.8	28.8	29.5	30.4	29.3	28.6	27.3	27.4	27.3	27.5	27.1	26.0	27.1	26.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:CommercialAndResidentialSector	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:EnergySector

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	55	50	66	59	60	74	92	82	75	79	82	82	77	79	83	80	88
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.2	9.1	12.8	11.7	13.4	14.3	16.3	14.8	14.0	14.8	14.6	14.5	14.3	14.8	15.5	15.6	17.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.2	9.1	12.8	11.7	13.4	14.3	16.3	14.8	14.0	14.8	14.6	14.5	14.3	14.8	15.5	15.6	17.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:EnergySector	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:IndustrialSector

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	270	247	226	225	195	229	242	242	236	240	257	257	244	243	249	228	220
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	44.9	45.0	43.4	44.2	43.6	44.0	42.8	43.4	43.9	44.7	45.2	45.6	45.0	45.2	46.1	44.6	43.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	44.9	45.0	43.4	44.2	43.6	44.0	42.8	43.4	43.9	44.7	45.2	45.6	45.0	45.2	46.1	44.6	43.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:IndustrialSector	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:InfrastructureSector

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	111	103	61	67	63	63	60	70	72	71	72	70	71	69	67	65	59
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	18.6	18.8	11.9	13.3	14.2	12.3	10.6	12.6	13.5	13.2	12.8	12.6	13.2	12.9	12.5	12.7	11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	18.6	18.8	11.9	13.3	14.2	12.3	10.6	12.6	13.5	13.2	12.8	12.6	13.2	12.9	12.5	12.7	11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:InfrastructureSector	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EquitySecuritiesByIndustry, us-gaap:StatementBusinessSegments

nvt:CommercialAndResidentialSector, nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	82	75	84	83	72	82	83	87	87	79	80	85	83	79	78	80	74
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	13.8	13.8	16.2	16.4	16.1	15.8	14.7	15.6	16.3	14.9	14.2	15.2	15.5	14.7	14.6	15.7	14.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	13.8	13.8	16.2	16.4	16.1	15.8	14.7	15.6	16.3	14.9	14.2	15.2	15.5	14.7	14.6	15.7	14.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:CommercialAndResidentialSector nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:CommercialAndResidentialSector, nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	37	28	27	28	23	31	34	29	26	22	22	22	21	20	22	21	22
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	6.2	5.2	5.2	5.6	5.3	6.1	6.1	5.3	4.9	4.2	4.0	4.0	4.0	3.8	4.1	4.2	4.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	6.2	5.2	5.2	5.6	5.3	6.1	6.1	5.3	4.9	4.2	4.0	4.0	4.0	3.8	4.1	4.2	4.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:CommercialAndResidentialSector nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:CommercialAndResidentialSector, nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	43	44	54	45	32	39	54	47	39	44	52	45	43	46	39	36	37
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	7.3	8.1	10.5	8.9	7.3	7.6	9.6	8.4	7.4	8.3	9.2	8.1	8.1	8.6	7.2	7.2	7.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	7.3	8.1	10.5	8.9	7.3	7.6	9.6	8.4	7.4	8.3	9.2	8.1	8.1	8.6	7.2	7.2	7.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:CommercialAndResidentialSector nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:EnergySector, nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	4.8	4.0	14	15	15	15	13	13	14	13	12	13	13	12	13	13	14
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.8	0.7	2.8	3.0	3.4	2.9	2.4	2.4	2.7	2.5	2.1	2.4	2.6	2.3	2.4	2.6	2.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.8	0.7	2.8	3.0	3.4	2.9	2.4	2.4	2.7	2.5	2.1	2.4	2.6	2.3	2.4	2.6	2.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:EnergySector nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:EnergySector, nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	22	20	19	21	18	26	24	26	26	25	23	24	27	27	25	23	23
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	3.7	3.8	3.7	4.2	4.1	5.1	4.4	4.7	4.9	4.8	4.2	4.3	5.1	5.1	4.8	4.6	4.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	3.7	3.8	3.7	4.2	4.1	5.1	4.4	4.7	4.9	4.8	4.2	4.3	5.1	5.1	4.8	4.6	4.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:EnergySector nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:EnergySector, nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	28	25	32	22	26	32	54	42	34	40	47	43	36	40	44	43	49
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	4.7	4.6	6.3	4.5	5.8	6.3	9.5	7.6	6.4	7.5	8.3	7.7	6.7	7.4	8.3	8.4	9.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	4.7	4.6	6.3	4.5	5.8	6.3	9.5	7.6	6.4	7.5	8.3	7.7	6.7	7.4	8.3	8.4	9.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:EnergySector nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:IndustrialSector, nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	28	24	28	29	25	26	28	30	29	26	28	29	29	25	26	25	23
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	4.8	4.4	5.5	5.8	5.8	5.0	4.9	5.4	5.5	5.0	5.0	5.2	5.5	4.7	5.0	4.9	4.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	4.8	4.4	5.5	5.8	5.8	5.0	4.9	5.4	5.5	5.0	5.0	5.2	5.5	4.7	5.0	4.9	4.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:IndustrialSector nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:IndustrialSector, nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	187	172	143	148	133	156	155	157	154	155	150	161	156	157	147	144	140
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	31.2	31.4	27.6	29.1	29.9	30.0	27.4	28.2	28.7	28.8	26.6	28.6	28.9	29.2	27.4	28.1	27.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	31.2	31.4	27.6	29.1	29.9	30.0	27.4	28.2	28.7	28.8	26.6	28.6	28.9	29.2	27.4	28.1	27.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:IndustrialSector nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:IndustrialSector, nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	53	50	53	47	35	46	58	55	52	58	77	66	57	60	74	59	57
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.0	9.2	10.3	9.3	8.0	8.9	10.4	9.8	9.6	10.9	13.7	11.9	10.6	11.3	13.7	11.5	11.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.0	9.2	10.3	9.3	8.0	8.9	10.4	9.8	9.6	10.9	13.7	11.9	10.6	11.3	13.7	11.5	11.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:IndustrialSector nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:InfrastructureSector, nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	53	43	19	19	18	18	17	18	18	17	17	18	20	19	21	19	18
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	8.8	7.9	3.8	3.8	4.2	3.6	3.1	3.3	3.4	3.2	3.1	3.3	3.8	3.7	3.9	3.9	3.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	8.8	7.9	3.8	3.8	4.2	3.6	3.1	3.3	3.4	3.2	3.1	3.3	3.8	3.7	3.9	3.9	3.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:InfrastructureSector nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:InfrastructureSector, nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	53	55	40	46	43	43	40	48	52	51	53	51	49	48	45	44	40
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	8.8	10.1	7.7	9.1	9.7	8.4	7.2	8.7	9.7	9.6	9.4	9.1	9.1	9.0	8.4	8.7	8.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	8.8	10.1	7.7	9.1	9.7	8.4	7.2	8.7	9.7	9.6	9.4	9.1	9.1	9.0	8.4	8.7	8.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:InfrastructureSector nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:InfrastructureSector, nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	5.7	3.8	1.9	1.6	1.2	1.6	1.7	2.7	2.3	1.8	1.6	1.3	1.6	1.1	1.1	0.9	0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.9	0.7	0.4	0.3	0.3	0.3	0.3	0.5	0.4	0.3	0.3	0.2	0.3	0.2	0.2	0.2	0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.9	0.7	0.4	0.3	0.3	0.3	0.3	0.5	0.4	0.3	0.3	0.2	0.3	0.2	0.2	0.2	0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:InfrastructureSector nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	169	147	147	147	132	141	141	149	150	137	138	147	148	136	131	139	139	130
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	28.1	26.9	28.3	29.0	29.5	27.2	25.0	26.7	27.9	25.5	24.4	26.1	27.3	25.4	24.3	25.9	27.1	25.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	28.1	26.9	28.3	29.0	29.5	27.2	25.0	26.7	27.9	25.5	24.4	26.1	27.3	25.4	24.3	25.9	27.1	25.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	300	277	230	244	219	258	255	262	260	255	250	259	255	254	232	241	234	226
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	50.0	50.5	44.2	48.0	49.0	49.6	45.1	46.9	48.2	47.5	44.1	46.0	47.1	47.2	42.9	44.7	45.6	45.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	50.0	50.5	44.2	48.0	49.0	49.6	45.1	46.9	48.2	47.5	44.1	46.0	47.1	47.2	42.9	44.7	45.6	45.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	131	124	143	116	95	120	169	147	128	145	178	157	139	147	177	159	139	145
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	21.9	22.6	27.5	23.0	21.4	23.1	29.8	26.4	23.9	27.0	31.5	27.9	25.6	27.4	32.8	29.4	27.3	29.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	21.9	22.6	27.5	23.0	21.4	23.1	29.8	26.4	23.9	27.0	31.5	27.9	25.6	27.4	32.8	29.4	27.3	29.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

nvt:DevelopingCountries

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	67	60	61	41	42	45	60	54	55	52	55	57	58	56	64	47	62
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	11.3	11.0	11.7	8.1	9.5	8.6	10.6	9.7	10.2	9.8	9.8	10.2	10.8	10.6	11.9	9.3	12.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	11.3	11.0	11.7	8.1	9.5	8.6	10.6	9.7	10.2	9.8	9.8	10.2	10.8	10.6	11.9	9.3	12.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:DevelopingCountries	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:OtherDevelopedCountries

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	13	10	9.999999999999996	10	11	10.0	9.6	11	9.5	10	10	9.7	11	11	11	9.6	9.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	2.2	1.9	1.9	2.1	2.5	1.9	1.7	2.1	1.8	2.0	1.8	1.7	2.2	2.1	2.0	1.9	1.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	2.2	1.9	1.9	2.1	2.5	1.9	1.7	2.1	1.8	2.0	1.8	1.7	2.2	2.1	2.0	1.9	1.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:OtherDevelopedCountries	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:UnitedStatesAndCanada

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	378	343	316	338	292	347	369	381	369	361	373	374	356	349	347	343	327
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	63.0	62.6	60.8	66.5	65.4	66.7	65.2	68.2	68.4	67.2	65.8	66.4	65.7	64.8	64.2	66.8	65.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	63.0	62.6	60.8	66.5	65.4	66.7	65.2	68.2	68.4	67.2	65.8	66.4	65.7	64.8	64.2	66.8	65.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:UnitedStatesAndCanada	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:WesternEurope

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	141	134	133	118	100	118	127	112	105	112	128	122	115	121	118	112	103
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	23.6	24.5	25.6	23.3	22.6	22.8	22.5	20.0	19.6	20.9	22.6	21.6	21.3	22.6	21.8	22.0	20.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	23.6	24.5	25.6	23.3	22.6	22.8	22.5	20.0	19.6	20.9	22.6	21.6	21.3	22.6	21.8	22.0	20.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:WesternEurope	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

nvt:DevelopingCountries, nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	12	9.0	10	8.2	6.3	8.7	11	10	9.5	10	11	11	12	12
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	2.1	1.6	1.9	1.6	1.4	1.7	2.1	1.9	1.8	1.9	2.0	2.0	2.2	2.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	2.1	1.6	1.9	1.6	1.4	1.7	2.1	1.9	1.8	1.9	2.0	2.0	2.2	2.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:DevelopingCountries nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:DevelopingCountries, nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	25	24	22	20	19	19	23	23	23	21	24	26	26	24
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	4.2	4.4	4.3	4.1	4.4	3.7	4.2	4.2	4.4	4.0	4.2	4.6	4.9	4.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	4.2	4.4	4.3	4.1	4.4	3.7	4.2	4.2	4.4	4.0	4.2	4.6	4.9	4.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:DevelopingCountries nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:DevelopingCountries, nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	30	27	28	12	16	16	24	20	21	21	20	20	19	20
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	5.0	4.9	5.5	2.4	3.7	3.2	4.3	3.6	4.1	3.9	3.6	3.7	3.7	3.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	5.0	4.9	5.5	2.4	3.7	3.2	4.3	3.6	4.1	3.9	3.6	3.7	3.7	3.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:DevelopingCountries nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:OtherDevelopedCountries, nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	4.4	4.2	3.6	4.0	3.8	3.5	3.5	3.4	3.4	3.3	3.6	3.4	4.5	3.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.7	0.8	0.7	0.8	0.8	0.7	0.6	0.6	0.6	0.6	0.6	0.6	0.8	0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.7	0.8	0.7	0.8	0.8	0.7	0.6	0.6	0.6	0.6	0.6	0.6	0.8	0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:OtherDevelopedCountries nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:OtherDevelopedCountries, nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	3.9	3.5	3.5	3.7	3.4	3.1	4.3	3.7	2.8	2.5	2.9	3.2	2.7	2.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.6	0.6	0.7	0.7	0.8	0.6	0.8	0.7	0.5	0.5	0.5	0.6	0.5	0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.6	0.6	0.7	0.7	0.8	0.6	0.8	0.7	0.5	0.5	0.5	0.6	0.5	0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:OtherDevelopedCountries nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:OtherDevelopedCountries, nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	4.7	2.7	2.9	3.1	4.2	3.4	1.8	4.5	3.3	5.1	3.8	3.1	4.7	4.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.8	0.5	0.6	0.6	0.9	0.7	0.3	0.8	0.6	0.9	0.7	0.5	0.9	0.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.8	0.5	0.6	0.6	0.9	0.7	0.3	0.8	0.6	0.9	0.7	0.5	0.9	0.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:OtherDevelopedCountries nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:UnitedStatesAndCanada, nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	117	103	103	109	100	102	100	107	109	97	97	104	103	93
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	19.5	18.9	19.9	21.4	22.5	19.7	17.7	19.2	20.3	18.1	17.1	18.5	19.0	17.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	19.5	18.9	19.9	21.4	22.5	19.7	17.7	19.2	20.3	18.1	17.1	18.5	19.0	17.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:UnitedStatesAndCanada nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:UnitedStatesAndCanada, nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	193	175	144	159	140	174	165	183	186	180	173	179	178	172
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	32.1	32.0	27.6	31.4	31.5	33.4	29.2	32.7	34.5	33.5	30.5	31.9	32.9	32.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	32.1	32.0	27.6	31.4	31.5	33.4	29.2	32.7	34.5	33.5	30.5	31.9	32.9	32.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:UnitedStatesAndCanada nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:UnitedStatesAndCanada, nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	68	63	68	69	51	70	103	90	73	83	103	90	74	83
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	11.4	11.6	13.2	13.7	11.4	13.6	18.3	16.2	13.6	15.6	18.1	16.1	13.7	15.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	11.4	11.6	13.2	13.7	11.4	13.6	18.3	16.2	13.6	15.6	18.1	16.1	13.7	15.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:UnitedStatesAndCanada nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:WesternEurope, nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	35	30	29	26	21	27	26	28	28	26	26	28	28	27
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	5.8	5.6	5.7	5.2	4.8	5.2	4.7	5.0	5.2	4.9	4.7	5.1	5.2	5.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	5.8	5.6	5.7	5.2	4.8	5.2	4.7	5.0	5.2	4.9	4.7	5.1	5.2	5.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:WesternEurope nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:WesternEurope, nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	78	73	60	60	55	61	62	52	47	50	50	50	47	54
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	13.0	13.4	11.6	11.9	12.4	11.9	11.0	9.3	8.8	9.5	8.8	9.0	8.8	10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	13.0	13.4	11.6	11.9	12.4	11.9	11.0	9.3	8.8	9.5	8.8	9.0	8.8	10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:WesternEurope nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:WesternEurope, nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	28	30	43	32	24	29	38	32	30	35	51	42	39	39
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	4.7	5.6	8.3	6.3	5.4	5.7	6.9	5.7	5.6	6.5	9.1	7.6	7.4	7.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	4.7	5.6	8.3	6.3	5.4	5.7	6.9	5.7	5.6	6.5	9.1	7.6	7.4	7.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nvt:WesternEurope nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	135	117	112	107	104	123	125	126	113	120	120	124	143	131	143	110	109	120
Percentage of SellingGeneralAndAdministrativeExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	22.5	21.4	21.5	21.1	23.3	23.6	22.1	22.5	21.0	22.3	21.2	22.0	26.4	24.5	26.6	20.3	21.3	23.9

Assets

us-gaap:Assets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2016-12-31
Value	4709	4398	4366	4410	4712	4730	4640	4636	4464	4474	4552	4583	4576	5301	4725	4493
Percentage of Assets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

nvt:ElectricalandFasteningSolutionsSegment

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	2111	2129	2157	2189	2210
Percentage of Assets	48.4	45.9	47.4	46.3	49.2
Percentage of Assets	48.4	45.9	47.4	46.3	49.2
Percentage of Assets nvt:ElectricalandFasteningSolutionsSegment	100.0	100.0	100.0	100.0	100.0

nvt:EnclosuresSegment

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	785	787	665	672	616
Percentage of Assets	18.0	17.0	14.6	14.2	13.7
Percentage of Assets	18.0	17.0	14.6	14.2	13.7
Percentage of Assets nvt:EnclosuresSegment	100.0	100.0	100.0	100.0	100.0

nvt:ThermalManagementSegment

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	1271	1543	1557	1800	1615
Percentage of Assets	29.1	33.3	34.2	38.1	35.9
Percentage of Assets	29.1	33.3	34.2	38.1	35.9
Percentage of Assets nvt:ThermalManagementSegment	100.0	100.0	100.0	100.0	100.0

us-gaap:AllOtherSegments

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	197	180	172	62	51
Percentage of Assets	4.5	3.9	3.8	1.3	1.1
Percentage of Assets	4.5	3.9	3.8	1.3	1.1
Percentage of Assets us-gaap:AllOtherSegments	100.0	100.0	100.0	100.0	100.0

Liabilities

us-gaap:Liabilities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	2217	1948	1956	1997	2134	2153	2047	2069	1927	1839	1865	1867	1880	1660	933
Percentage of Liabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	47.1	44.3	44.8	45.3	45.3	45.5	44.1	44.6	43.2	41.1	41.0	40.7	41.1	31.3	19.8

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	4709	4398	4366	4410	4712	4730	4640	4636	4464	4474	4552	4583	4576	5301	4725
Percentage of LiabilitiesAndStockholdersEquity	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Assets Current

us-gaap:AssetsCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	902	799	764	816	883	885	798	806	748	746	846	835	819	1524	732
Percentage of AssetsCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	19.2	18.2	17.5	18.5	18.7	18.7	17.2	17.4	16.8	16.7	18.6	18.2	17.9	28.8	15.5

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2015-12-31
Value	122	106	49	25	32	159	106	91	836	26	27	36	28	21	22
Percentage of CashAndCashEquivalentsAtCarryingValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	2.8	2.3	1.1	0.6	0.7	3.5	2.3	2.0	15.8	0.6	0.0	0.0	0.0	0.5	0.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2017-12-31
Value	101	104	122	159	235	187	106	49	25	32	159	26
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	2.2	2.4	2.8	3.6	5.0	4.0	2.3	1.1	0.6	0.7	3.5	0.6

Inventory Net

us-gaap:InventoryNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	275	237	235	238	247	249	244	259	248	244	228	237	226	225	224
Percentage of InventoryNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	5.8	5.4	5.4	5.4	5.3	5.3	5.3	5.6	5.6	5.5	5.0	5.2	5.0	4.3	4.7

Inventory Finished Goods

us-gaap:InventoryFinishedGoods

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	161	141	143	144	150	149	152	155	150	149	139	141	138	137	134
Percentage of InventoryFinishedGoods	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	3.4	3.2	3.3	3.3	3.2	3.2	3.3	3.3	3.4	3.3	3.1	3.1	3.0	2.6	2.8

Inventory Raw Materials And Supplies

us-gaap:InventoryRawMaterialsAndSupplies

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	84	69	67	69	71	71	67	75	71	68	63	70	62	63	64
Percentage of InventoryRawMaterialsAndSupplies	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.8	1.6	1.5	1.6	1.5	1.5	1.4	1.6	1.6	1.5	1.4	1.5	1.4	1.2	1.4

Other Assets Current

us-gaap:OtherAssetsCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	116	104	92	89	100	115	113	122	125	126	118	126	136	107	132
Percentage of OtherAssetsCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	2.5	2.4	2.1	2.0	2.1	2.4	2.4	2.6	2.8	2.8	2.6	2.8	3.0	2.0	2.8

Machinery And Equipment Gross

us-gaap:MachineryAndEquipmentGross

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	479	465	461	454	450	444	440	430	420	416	410	413	405	408	402
Percentage of MachineryAndEquipmentGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	10.2	10.6	10.6	10.3	9.6	9.4	9.5	9.3	9.4	9.3	9.0	9.0	8.9	7.7	8.5

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	735	714	718	697	685	676	679	668	649	641	637	637	624	630	622
Percentage of PropertyPlantAndEquipmentGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	15.6	16.2	16.4	15.8	14.5	14.3	14.6	14.4	14.5	14.3	14.0	13.9	13.6	11.9	13.2

Construction In Progress Gross

us-gaap:ConstructionInProgressGross

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	29	27	30	21	17	16	16	18	15	13	14	9.7	13	9.3	11
Percentage of ConstructionInProgressGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.6	0.6	0.7	0.5	0.4	0.4	0.4	0.4	0.3	0.3	0.3	0.2	0.3	0.2	0.2

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	443	431	428	418	408	397	394	387	385	376	372	373	363	365	357
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	9.4	9.8	9.8	9.5	8.7	8.4	8.5	8.4	8.6	8.4	8.2	8.1	7.9	6.9	7.6

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	16	15	16	16	16	15	15	15	15	15	15	15	15	15
Percentage of AmortizationOfIntangibleAssets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AmortizationOfIntangibleAssets us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	16	15	16	16	16	16	15	15	15	15	15	15	15	15	15	15	15	15
Percentage of AmortizationOfIntangibleAssets	100.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets us-gaap:MaterialReconcilingItems	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	291	282	289	278	276	278	284	280	264	264	264	264	261	265	265
Percentage of PropertyPlantAndEquipmentNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	6.2	6.4	6.6	6.3	5.9	5.9	6.1	6.0	5.9	5.9	5.8	5.8	5.7	5.0	5.6

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:MX

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	39	42	39	37
Percentage of PropertyPlantAndEquipmentNet	13.7	14.8	15.0	14.0
Percentage of Assets	0.9	0.9	0.9	0.8
Percentage of Assets country:MX	0.0	0.0	0.0	0.0

nvt:DevelopingCountries

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	12	6.7	7.4	8.5
Percentage of PropertyPlantAndEquipmentNet	4.1	2.4	2.8	3.2
Percentage of Assets	0.3	0.1	0.2	0.2
Percentage of Assets nvt:DevelopingCountries	0.0	0.0	0.0	0.0

nvt:UnitedStatesAndCanada

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	159	160	159	159
Percentage of PropertyPlantAndEquipmentNet	54.9	56.5	60.3	60.1
Percentage of Assets	3.6	3.5	3.5	3.4
Percentage of Assets nvt:UnitedStatesAndCanada	0.0	0.0	0.0	0.0

us-gaap:EMEA

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	78	75	58	60
Percentage of PropertyPlantAndEquipmentNet	27.2	26.4	21.9	22.7
Percentage of Assets	1.8	1.6	1.3	1.3
Percentage of Assets us-gaap:EMEA	0.0	0.0	0.0	0.0

Goodwill

us-gaap:Goodwill

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2016-12-31
Value	2193	2094	2098	2090	2297	2290	2279	2286	2235	2233	2234	2237	2235	2241	2238	2222
Percentage of Goodwill	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	46.6	47.6	48.1	47.4	48.8	48.4	49.1	49.3	50.1	49.9	49.1	48.8	48.8	42.3	47.4	49.5

us-gaap:Goodwill us-gaap:StatementBusinessSegments

nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2016-12-31
Value	1052	1052	1051	1052	1052	1052	1038	1038	1038	1038	1038	1038	1038	1038	1036	1031
Percentage of Goodwill	48.0	50.2	50.1	50.3	45.8	45.9	45.6	45.4	46.4	46.5	46.5	46.4	46.4	46.3	46.3	46.4
Percentage of Assets	22.3	23.9	24.1	23.9	22.3	22.2	22.4	22.4	23.3	23.2	22.8	22.7	22.7	19.6	21.9	22.9
Percentage of Assets nvt:ElectricalandFasteningSolutionsSegment	0.0	0.0	49.8	0.0	0.0	0.0	48.8	0.0	0.0	0.0	48.1	0.0	0.0	0.0	47.3	46.6

nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2016-12-31
Value	425	327	332	326	321	315	315	322	271	271	272	273	272	276	274	267
Percentage of Goodwill	19.4	15.6	15.8	15.6	14.0	13.8	13.8	14.1	12.2	12.1	12.2	12.2	12.2	12.4	12.3	12.0
Percentage of Assets	9.0	7.4	7.6	7.4	6.8	6.7	6.8	7.0	6.1	6.1	6.0	6.0	6.0	5.2	5.8	6.0
Percentage of Assets nvt:EnclosuresSegment	0.0	0.0	42.3	0.0	0.0	0.0	40.1	0.0	0.0	0.0	40.8	0.0	0.0	0.0	40.9	43.4

nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2016-12-31
Value	715	714	714	712	923	923	925	925	925	924	924	925	924	926	927	924
Percentage of Goodwill	32.6	34.1	34.0	34.1	40.2	40.3	40.6	40.5	41.4	41.4	41.4	41.4	41.4	41.3	41.4	41.6
Percentage of Assets	15.2	16.3	16.4	16.2	19.6	19.5	19.9	20.0	20.7	20.7	20.3	20.2	20.2	17.5	19.6	20.6
Percentage of Assets nvt:ThermalManagementSegment	0.0	0.0	56.2	0.0	0.0	0.0	60.0	0.0	0.0	0.0	59.3	0.0	0.0	0.0	51.5	57.2

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	273	281	281	281
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill	100.0	100.0	100.0	100.0
Percentage of Assets	6.3	6.1	6.2	6.0

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:TradeNames

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	273	273	273	273	281	281	281	281	281	281	281	281	281	281	281
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill	0.0	0.0	100.0	0.0	0.0	0.0	100.0	0.0	0.0	0.0	100.0	0.0	0.0	0.0	100.0
Percentage of Assets	5.8	6.2	6.3	6.2	6.0	5.9	6.1	6.1	6.3	6.3	6.2	6.1	6.1	5.3	6.0
Percentage of Assets us-gaap:TradeNames	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	1179	1088	1105	1117	1139	1154	1160	1174	1144	1158	1173	1190	1204	1220	1236
Percentage of IntangibleAssetsNetExcludingGoodwill	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	25.0	24.8	25.3	25.3	24.2	24.4	25.0	25.3	25.6	25.9	25.8	26.0	26.3	23.0	26.2

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	905	815	832	844	858	873	879	893	863	877	892	908	922	939	955
Percentage of FiniteLivedIntangibleAssetsNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	19.2	18.5	19.1	19.1	18.2	18.5	18.9	19.3	19.3	19.6	19.6	19.8	20.2	17.7	20.2

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	874	808	824	836	850	864	871	885	854	869	883	899	913	929	945
Percentage of FiniteLivedIntangibleAssetsNet	96.5	99.1	99.1	99.1	99.0	99.0	99.2	99.1	99.1	99.0	99.0	99.0	99.0	99.0	99.0
Percentage of Assets	18.6	18.4	18.9	19.0	18.0	18.3	18.8	19.1	19.1	19.4	19.4	19.6	20.0	17.5	20.0
Percentage of Assets us-gaap:CustomerRelationships	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:PatentedTechnology

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	31	7.1	7.5	7.8	8.2	8.5	7.4	7.8	8.1	8.4	8.7	9.0	9.3	9.7	9.8
Percentage of FiniteLivedIntangibleAssetsNet	3.5	0.9	0.9	0.9	1.0	1.0	0.8	0.9	0.9	1.0	1.0	1.0	1.0	1.0	1.0
Percentage of Assets	0.7	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Percentage of Assets us-gaap:PatentedTechnology	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31
Value	78	49	45	46	47	43	44	46	41	41	0.0
Percentage of OperatingLeaseRightOfUseAsset	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	1.7	1.1	1.0	1.1	1.0	0.9	1.0	1.0	0.9	0.9	0.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	143	133	108	108	115	120	117	88	72	71	33	56	56	49	251
Percentage of OtherAssetsNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	3.0	3.0	2.5	2.5	2.5	2.5	2.5	1.9	1.6	1.6	0.7	1.2	1.2	0.9	5.3

Accounts Payable Current

us-gaap:AccountsPayableCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	219	176	171	139	134	150	187	139	139	149	186	141	152	141	174
Percentage of AccountsPayableCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	4.7	4.0	3.9	3.2	2.9	3.2	4.0	3.0	3.1	3.3	4.1	3.1	3.3	2.7	3.7

Debt Current

us-gaap:DebtCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2017-12-31
Value	20	20	20	20	20	18	17	16	15	13	12	11	10	0.0
Percentage of DebtCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	0.4	0.5	0.5	0.5	0.4	0.4	0.4	0.4	0.3	0.3	0.3	0.2	0.2	0.0

Dividends Payable Current

us-gaap:DividendsPayableCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2017-12-31
Value	30	29	29	29	29	29	29	29	29	30	31	31	0.0
Percentage of DividendsPayableCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	0.6	0.7	0.7	0.7	0.6	0.6	0.6	0.6	0.7	0.7	0.7	0.7	0.0

Liabilities Current

us-gaap:LiabilitiesCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	535	463	450	409	386	409	462	437	400	410	461	425	387	328	390
Percentage of LiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	11.4	10.5	10.3	9.3	8.2	8.7	10.0	9.4	9.0	9.2	10.1	9.3	8.5	6.2	8.3

Long Term Debt Current

us-gaap:LongTermDebtCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2017-12-31
Value	20	20	20	20	20	18	17	16	15	13	12	11	10	0.0
Percentage of LongTermDebtCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	0.4	0.5	0.5	0.5	0.4	0.4	0.4	0.4	0.3	0.3	0.3	0.2	0.2	0.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31
Value	18	14	14	14	14	14	14	15	14	13	0.0
Percentage of OperatingLeaseLiabilityCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	0.4	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.0

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	201	190	188	182	169	178	185	210	181	183	187	198	160	126	141
Percentage of OtherAccruedLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	4.3	4.3	4.3	4.1	3.6	3.8	4.0	4.5	4.1	4.1	4.1	4.3	3.5	2.4	3.0

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	61	66	60	68	61	69	58	55	60	69	69	61	59	43	46
Percentage of OtherLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.3	1.5	1.4	1.5	1.3	1.5	1.3	1.2	1.3	1.5	1.5	1.3	1.3	0.8	1.0

Long Term Debt

us-gaap:LongTermDebt

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	1083	923	948	1032	1187	1192	1064	1133	1041	925	941	932	983	793	0.0
Percentage of LongTermDebt	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	23.0	21.0	21.7	23.4	25.2	25.2	22.9	24.5	23.3	20.7	20.7	20.4	21.5	15.0	0.0

us-gaap:LongTermDebt us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	952	1069	947	0.0
Percentage of LongTermDebt	100.4	100.5	100.6	0.0
Percentage of Assets	21.8	23.1	20.8	0.0
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure	0.0	0.0	0.0	0.0

us-gaap:EstimateOfFairValueFairValueDisclosure

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	1067	1133	941	0.0
Percentage of LongTermDebt	112.6	106.4	99.9	0.0
Percentage of Assets	24.4	24.4	20.7	0.0
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure	0.0	0.0	0.0	0.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	1103	943	928	1052	1207	1211	1047	1150	1056	939	929	944	994	793	0.0
Percentage of LongTermDebtNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	23.4	21.4	21.3	23.9	25.6	25.6	22.6	24.8	23.7	21.0	20.4	20.6	21.7	15.0	0.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	231	229	230	234	253	254	237
Percentage of DeferredIncomeTaxLiabilitiesNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	4.9	5.2	5.3	5.3	5.4	5.4	5.1

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	231	228	237	220	211	208	207	175	178	175	177	179	175	188	176
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	4.9	5.2	5.4	5.0	4.5	4.4	4.5	3.8	4.0	3.9	3.9	3.9	3.8	3.6	3.7

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	17	16	15	17
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	7.3	7.8	8.4	9.6
Percentage of Assets	0.4	0.3	0.3	0.4
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit	0.0	0.0	0.0	0.0

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	208	180	154	153
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	87.4	86.9	87.1	86.8
Percentage of Assets	4.8	3.9	3.4	3.2
Percentage of Assets us-gaap:PensionPlansDefinedBenefit	0.0	0.0	0.0	0.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	134	102	110	99	95	89	93	90	84	105	72	74	78	85	86
Percentage of OtherLiabilitiesNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	2.8	2.3	2.5	2.3	2.0	1.9	2.0	1.9	1.9	2.4	1.6	1.6	1.7	1.6	1.8

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31
Value	64	39	35	36	37	33	33	35	31	32	0.0
Percentage of OperatingLeaseLiabilityNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	1.4	0.9	0.8	0.8	0.8	0.7	0.7	0.8	0.7	0.7	0.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

Period End	2020-12-31	2020-09-30	2019-12-31
Value	12	11	11
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	100.0	100.0	100.0
Percentage of Assets	0.3	0.3	0.2

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

Period End	2020-12-31	2020-09-30	2019-12-31
Value	7900000.0	7500000.0	7500000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree	100.0	100.0	100.0
Percentage of Assets	0.2	0.2	0.2

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

Period End	2020-12-31	2020-09-30	2019-12-31
Value	5900000.0	5600000.0	4400000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour	100.0	100.0	100.0
Percentage of Assets	0.1	0.1	0.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

Period End	2020-12-31	2020-09-30	2019-12-31
Value	4600000.0	4500000.0	3500000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive	100.0	100.0	100.0
Percentage of Assets	0.1	0.1	0.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

Period End	2020-12-31	2019-12-31
Value	10.0	10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	100.0	100.0
Percentage of Assets	0.2	0.2

Operating Lease Liability

us-gaap:OperatingLeaseLiability

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2019-01-01
Value	49	51	51	48	48	50	45	46	48
Percentage of OperatingLeaseLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.1	1.2	1.1	1.0	1.0	1.1	1.0	1.0	0.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

Period End	2020-12-31	2020-09-30	2019-12-31
Value	57	58	54
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue	100.0	100.0	100.0
Percentage of Assets	1.3	1.3	1.2

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

Period End	2020-12-31	2020-09-30	2019-12-31
Value	7400000.0	7900000.0	6000000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	100.0	100.0	100.0
Percentage of Assets	0.2	0.2	0.1

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2015-12-31
Value	2492	2450	2409	2413	2578	2576	2592	2566	2537	2635	2687	2715	2696	3640	3791	3762	3818	3495	3485	3506
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	52.9	55.7	55.2	54.7	54.7	54.5	55.9	55.4	56.8	58.9	59.0	59.3	58.9	68.7	80.2	0.0	0.0	0.0	77.6	0.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2015-12-31
Value	-79.4	-72.9	-95.2	-107.5	-103.3	-105.1	-98.6	-100.8	-95.1	-111.0	-107.8	-91.5	-96.3	-55.5	-57.1	-64.0	-32.2	-51.3	-60.6	-88.9
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-3.2	-3.0	-4.0	-4.5	-4.0	-4.1	-3.8	-3.9	-3.7	-4.2	-4.0	-3.4	-3.6	-1.5	-1.5	-1.7	-0.8	-1.5	-1.7	-2.5
Percentage of Assets	-1.7	-1.7	-2.2	-2.4	-2.2	-2.2	-2.1	-2.2	-2.1	-2.5	-2.4	-2.0	-2.1	-1.0	-1.2	0.0	0.0	0.0	-1.3	0.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AdditionalPaidInCapital

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2016-12-31	2015-12-31
Value	2478	2464	2482	2516	2508	2504	2502	2494	2490	2635	2709	2757	2748	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	99.4	100.6	103.0	104.3	97.3	97.2	96.5	97.2	98.1	100.0	100.8	101.6	101.9	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets	52.6	56.0	56.9	57.0	53.2	52.9	53.9	53.8	55.8	58.9	59.5	60.2	60.1	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets us-gaap:AdditionalPaidInCapital	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:CommonStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2016-12-31	2015-12-31
Value	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.8	1.8	1.8	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets us-gaap:CommonStock	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RetainedEarnings

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-03-31	2016-12-31	2015-12-31
Value	92	56	20	3.0	171	175	186	170	140	109	83	47	42	3695	3848	0.0	3546	3546	0.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3.7	2.3	0.9	0.1	6.7	6.8	7.2	6.7	5.5	4.1	3.1	1.7	1.6	101.5	101.5	0.0	101.5	101.7	0.0
Percentage of Assets	2.0	1.3	0.5	0.1	3.6	3.7	4.0	3.7	3.1	2.4	1.8	1.0	0.9	69.7	81.4	0.0	0.0	78.9	0.0
Percentage of Assets us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2017-12-31
Value	2478	2464	2482	2516	2508	2504	2502	2494	2490	2635	2709	0.0
Percentage of AdditionalPaidInCapital	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	52.6	56.0	56.9	57.0	53.2	52.9	53.9	53.8	55.8	58.9	59.5	0.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-03-31	2017-12-31
Value	92	56	20	3.0	171	175	186	170	140	109	83	3695	0.0
Percentage of RetainedEarningsAccumulatedDeficit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0
Percentage of Assets	2.0	1.3	0.5	0.1	3.6	3.7	4.0	3.7	3.1	2.4	1.8	69.7	0.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	-79400000.0	-72900000.0	-95200000.0	-107500000.0	-103300000.0	-105100000.0	-98600000.0	-100800000.0	-95100000.0	-111000000.0	-107800000.0	-91500000.0	-96300000.0	-55500000.0	-57100000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	-1.7	-1.7	-2.2	-2.4	-2.2	-2.2	-2.1	-2.2	-2.1	-2.5	-2.4	-2.0	-2.1	-1.0	-1.2

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	6.4	-0.2	5.9	4.2	1.9	4.1	4.1	4.3	3.5	3.9	2.5
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	6.4	-0.2	5.9	4.2	1.9	4.1	4.1	4.3	3.5	3.9	2.5
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets us-gaap:AdditionalPaidInCapital	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	93	49	140	113	83	6.7	178	99	70	-13.1	160	101	45	36	111	173	38	87
Percentage of NetCashProvidedByUsedInOperatingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	15.5	9.1	26.9	22.2	18.7	1.3	31.6	17.8	13.1	-2.4	28.3	17.9	8.4	6.7	20.5	32.1	7.4	17.3

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	-236700000.0	-13700000.0	-14100000.0	-8100000.0	-6700000.0	-36100000.0	-9600000.0	-139200000.0	-8300000.0	-3200000.0	-10900000.0	-18800000.0	-4300000.0	-5100000.0	-6400000.0	-6300000.0	-3700000.0	-24800000.0
Percentage of NetCashProvidedByUsedInInvestingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-39.4	-2.5	-2.7	-1.6	-1.5	-6.9	-1.7	-24.9	-1.5	-0.6	-1.9	-3.3	-0.8	-0.9	-1.2	-1.2	-0.7	-4.9

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	138	-52.4	-172.3	-182.7	-33.8	116	-111.7	63	-69.4	-108.6	-91.5	-76.6	-781.0	782	-117.8	-166.8	-23.8	-51.1
Percentage of NetCashProvidedByUsedInFinancingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	23.0	-9.5	-33.1	-35.9	-7.6	22.3	-19.7	11.3	-12.9	-20.2	-16.1	-13.6	-143.9	145.2	-21.7	-30.9	-4.6	-10.2

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	-3.1	-17.6	-37.3	-75.2	47	81	56	24	-7.3	-126.4
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-0.5	-3.2	-7.2	-14.8	10.5	15.6	10.0	4.3	-1.4	-23.5

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	23	10	27	3.2	-16.0	-33.3	45	-9.6	-3.2	-40.8	41	-9.7	16	-34.6	33	-10.3	-0.2	-6.3
Percentage of IncreaseDecreaseInAccountsPayable	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	27	42	-20.5	24	-34.5	2.6	-43.8	9.6	6.1	1.5	-20.4	-0.6	21	1.3	-15.4	13	11	9.4
Percentage of IncreaseDecreaseInAccountsReceivable	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	14	6.2	-9.0	-12.2	-3.2	6.1	-19.3	-1.3	2.9	16	-6.5	9.8	10	-2.0	-4.5	-4.4	8.3	9.5
Percentage of IncreaseDecreaseInInventories	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	93	49	140	113	83	6.7	178	99	70	-13.1	160	101	45	36	111	173	38	87
Percentage of NetCashProvidedByUsedInOperatingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	15.5	9.1	26.9	22.2	18.7	1.3	31.6	17.8	13.1	-2.4	28.3	17.9	8.4	6.7	20.5	32.1	7.4	17.3

Net Income Loss

us-gaap:NetIncomeLoss

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	47	-138.7	25	18	45	59	60	56	67	68	43	52	156	79	70	55
Percentage of NetIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.0	-27.2	5.8	3.6	8.0	10.7	11.3	10.5	11.8	12.1	8.0	9.7	28.8	14.7	13.8	11.0

Profit Loss

us-gaap:ProfitLoss

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	66	65	47	-138.7	25	18	45	59	60	56	67	68	43	52	156	79	70	55
Percentage of ProfitLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	11.0	11.9	9.0	-27.2	5.8	3.6	8.0	10.7	11.3	10.5	11.8	12.1	8.0	9.7	28.8	14.7	13.8	11.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-03-31
Value	66	65	-138.7	25	18	59	60	56	67	68	42	52	55
Percentage of ProfitLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	97.2	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	11.0	11.9	-27.2	5.8	3.6	10.7	11.3	10.5	11.8	12.1	7.8	9.7	11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Share Based Compensation

us-gaap:ShareBasedCompensation

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	6.4	-0.2	3.9	3.9	4.2	1.9	3.7	4.0	4.1	4.3	3.5	3.9	3.0	2.4	3.2	2.6	2.6	6.2
Percentage of ShareBasedCompensation	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	-236700000.0	-13700000.0	-14100000.0	-8100000.0	-6700000.0	-36100000.0	-9600000.0	-139200000.0	-8300000.0	-3200000.0	-10900000.0	-18800000.0	-4300000.0	-5100000.0	-6400000.0	-6300000.0	-3700000.0	-24800000.0
Percentage of NetCashProvidedByUsedInInvestingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-39.4	-2.5	-2.7	-1.6	-1.5	-6.9	-1.7	-24.9	-1.5	-0.6	-1.9	-3.3	-0.8	-0.9	-1.2	-1.2	-0.7	-4.9

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	8.0	9.9	14	8.2	7.0	10	9.8	11	8.4	9.2	11	18	4.3	5.4	6.7	6.2	7.6	11
Percentage of PaymentsToAcquirePropertyPlantAndEquipment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	138	-52.4	-172.3	-182.7	-33.8	116	-111.7	63	-69.4	-108.6	-91.5	-76.6	-781.0	782	-117.8	-166.8	-23.8	-51.1
Percentage of NetCashProvidedByUsedInFinancingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	23.0	-9.5	-33.1	-35.9	-7.6	22.3	-19.7	11.3	-12.9	-20.2	-16.1	-13.6	-143.9	145.2	-21.7	-30.9	-4.6	-10.2

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	5.0	5.0	5.0	5.0	3.7	3.8	4.4	4.7	2.5	2.5	2.5	50	0.0	0.0	0.0
Percentage of RepaymentsOfLongTermDebt	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	0.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	29	29	29	29	29	29	29	29	30	31	31	31	0.0	0.0	0.0
Percentage of PaymentsOfDividendsCommonStock	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	0.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	0.0	20	40	0.0	0.0	3.2	0.0	0.0	159	76	56	0.0	0.0	0.0
Percentage of PaymentsForRepurchaseOfCommonStock	0.0	100.0	100.0	0.0	0.0	100.0	0.0	0.0	100.0	100.0	100.0	0.0	0.0	0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	4.2	8.8	-353.9	-43.376	-0.149	0.625	-0.036	0.008	0.016	0.147	-0.022432	-0.0030893	-0.013479	0.18	-0.33805	0.0017048	0.019349	0.163
Percentage of EffectiveIncomeTaxRateContinuingOperations	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	200	196	220	260
Percentage of DeferredTaxLiabilities	100.0	100.0	100.0	100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	75	100	63	47
Percentage of DeferredTaxAssetsNet	100.0	100.0	100.0	100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

Period End	2021-06-30	2021-03-31	2020-12-31	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2016-12-31	2015-12-31
Value	15	15	17	19	19	17	17	16	16	16	18	21	24	24	26	20
Percentage of UnrecognizedTaxBenefits	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

Period End	2020-12-31	2020-09-30	2019-12-31	2018-12-31	2017-12-31
Value	154	19	125	137	143
Percentage of DeferredTaxAssetsValuationAllowance	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:IncomeTaxAuthority

us-gaap:ForeignCountry

Period End	2020-12-31	2020-06-30	2020-03-31	2019-12-31	2018-12-31
Value	122	19	19	117	131
Percentage of DeferredTaxAssetsValuationAllowance	79.0	0.0	0.0	93.4	95.1

nvt:ContractWithCustomerAssetIncreaseDecreaseAmount

Period End	2021-06-30	2021-03-31	2020-12-31
Value	2800000.0	-800000.0	2800000.0
Percentage of ContractWithCustomerAssetIncreaseDecreaseAmount	100.0	100.0	100.0

nvt:ContractWithCustomerAssetIncreaseDecreasePercent

Period End	2021-06-30	2021-03-31	2020-12-31
Value	6.2	-1.8	4.0
Percentage of ContractWithCustomerAssetIncreaseDecreasePercent	100.0	100.0	100.0

nvt:ContractWithCustomerAssetLiabilityNetIncreaseDecreaseAmount

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30
Value	1200000.0	-2300000.0	3200000.0	-11900000.0	-3500000.0	-9200000.0	5200000.0	-10600000.0
Percentage of ContractWithCustomerAssetLiabilityNetIncreaseDecreaseAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:ContractWithCustomerAssetLiabilityNetIncreaseDecreasePercent

Period End	2021-06-30	2021-03-31	2020-12-31
Value	3.5	-6.7	5.8
Percentage of ContractWithCustomerAssetLiabilityNetIncreaseDecreasePercent	100.0	100.0	100.0

nvt:ContractWithCustomerLiabilityIncreaseDecreaseAmount

Period End	2021-06-30	2021-03-31	2020-12-31
Value	1600000.0	1500000.0	-400000.0
Percentage of ContractWithCustomerLiabilityIncreaseDecreaseAmount	100.0	100.0	100.0

nvt:ContractWithCustomerLiabilityIncreaseDecreasePercent

Period End	2021-06-30	2021-03-31	2020-12-31
Value	14.1	13.3	-2.9
Percentage of ContractWithCustomerLiabilityIncreaseDecreasePercent	100.0	100.0	100.0

nvt:EffectiveIncomeTaxRateReconciliationDeductionImpairmentOfGoodwillAmount

Period End	2020-09-30
Value	21
Percentage of EffectiveIncomeTaxRateReconciliationDeductionImpairmentOfGoodwillAmount	100.0

nvt:EffectiveIncomeTaxRateReconciliationDeductionImpairmentOfGoodwillAmount us-gaap:StatementBusinessSegments

nvt:ThermalManagementSegment

Period End	2020-09-30
Value	21
Percentage of EffectiveIncomeTaxRateReconciliationDeductionImpairmentOfGoodwillAmount	100.0

nvt:EffectiveIncomeTaxRateReconciliationDiscreteTaxBenefitAmount us-gaap:IncomeTaxAuthority

nvt:EffectiveIncomeTaxRateReconciliationDiscreteTaxBenefitAmount

us-gaap:ForeignCountry

Period End	2021-03-31
Value	5200000.0
Percentage of EffectiveIncomeTaxRateReconciliationDiscreteTaxBenefitAmount	100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	200000.0	2000000.0	200000.0	600000.0	3300000.0	300000.0	600000.0	2600000.0	2400000.0	600000.0	500000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	200000.0	2000000.0	200000.0	600000.0	3300000.0	300000.0	600000.0	2600000.0	2400000.0	600000.0	500000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:CommonStock

Period End	2021-03-31	2020-06-30	2020-03-31	2019-06-30	2019-03-31	2018-09-30	2018-06-30
Value	100000.0	0	100000.0	0	100000.0	-100000.0	0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	5.0	0.0	3.0	0.0	3.8	-16.7	0.0

us-gaap:BasicEarningsPerShareProForma

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	0.39	0.39	-0.82	0.15	0.11	0.35	0.36	0.32	0.38	0.24	0.29	0.45	0.39	0.31
Percentage of BasicEarningsPerShareProForma	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:ConsolidationItems

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:MaterialReconcilingItems

Period End	2021-06-30	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30
Value	1600000.0	-4700000.0	500000.0	800000.0	900000.0	-4300000.0	1900000.0	0	0	0	0
Percentage of BusinessCombinationAcquisitionRelatedCosts	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	0.0	0.0

us-gaap:CommonStockDividendsPerShareCashPaid

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	0.175	0.175	0.175	0.175	0.175	0.175	0.175	0.175	0.175	0.175	0.175	0	0
Percentage of CommonStockDividendsPerShareCashPaid	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	0.6	-1.5	-9.1	-20.0	0.2	26	-22.7	0.3	-0.1	-2.1	-19.3	14	-17.7	-0.6	-154.1	4.8	-3.2	-5.5
Percentage of DeferredIncomeTaxesAndTaxCredits	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:Depreciation

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	10	9.7	9.6	9.8	9.4	9.6	9.3	8.9	8.8	8.4	8.6	9.3	9.1	9.2	9.2	9.4	9.2	8.7
Percentage of Depreciation	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DilutedEarningsPerShareProForma

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	0.39	0.39	-0.82	0.15	0.11	0.35	0.35	0.32	0.38	0.24	0.29	0.44	0.39	0.31
Percentage of DilutedEarningsPerShareProForma	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DividendsCommonStock

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30
Value	30	29	29	29	29	29	29	30	31	62
Percentage of DividendsCommonStock	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DividendsCommonStock us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30
Value	30	29	29	29	29	29	29	30	31	62
Percentage of DividendsCommonStock	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	1700000.0	-1400000.0	8800000.0	2400000.0	3800000.0	-5400000.0	-600000.0	400000.0	-500000.0	-1500000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FinitelivedIntangibleAssetsAcquired1 us-gaap:BusinessAcquisition

us-gaap:FinitelivedIntangibleAssetsAcquired1

nvt:VynckierEnclosureSystemsInc

Period End	2021-04-01
Value	6.1
Percentage of FinitelivedIntangibleAssetsAcquired1	100.0

us-gaap:FinitelivedIntangibleAssetsAcquired1 us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

nvt:CISGlobalLLC, us-gaap:CustomerRelationships

Period End	2021-06-30
Value	74
Percentage of FinitelivedIntangibleAssetsAcquired1	0.0

nvt:CISGlobalLLC, us-gaap:DevelopedTechnologyRights

Period End	2021-06-30
Value	24
Percentage of FinitelivedIntangibleAssetsAcquired1	0.0

us-gaap:GoodwillAcquiredDuringPeriod us-gaap:BusinessAcquisition

us-gaap:GoodwillAcquiredDuringPeriod

nvt:CISGlobalLLC

Period End	2021-06-30
Value	84
Percentage of GoodwillAcquiredDuringPeriod	100.0

nvt:VynckierEnclosureSystemsInc

Period End	2021-04-01
Value	12
Percentage of GoodwillAcquiredDuringPeriod	0.0

us-gaap:GoodwillAndIntangibleAssetImpairment

Period End	2020-12-31	2020-09-30
Value	0.0	220
Percentage of GoodwillAndIntangibleAssetImpairment	0.0	100.0

us-gaap:GoodwillImpairmentLoss

Period End	2020-12-31	2020-09-30
Value	0.0	212
Percentage of GoodwillImpairmentLoss	0.0	100.0

us-gaap:GoodwillImpairmentLoss us-gaap:StatementBusinessSegments

nvt:ThermalManagementSegment

Period End	2020-12-31	2020-09-30
Value	0.0	212
Percentage of GoodwillImpairmentLoss	0.0	100.0

us-gaap:GoodwillOtherIncreaseDecrease

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	2.5	-4.0	7.6	4.9	1.5	-2.7	2.1	-3.6	1.6	-0.4	-3.3	1.8	-5.5	1.2
Percentage of GoodwillOtherIncreaseDecrease	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:GoodwillOtherIncreaseDecrease us-gaap:StatementBusinessSegments

nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	1.5	-4.7	5.9	4.0	0.6	-0.2	1.7	-3.1	0.7	-1.0	-1.5	0.8	-4.2	2.1
Percentage of GoodwillOtherIncreaseDecrease	60.0	117.5	77.6	81.6	40.0	7.4	81.0	86.1	43.8	250.0	45.5	44.4	76.4	175.0

nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	1.0	0.7	1.7	0.9	0.9	-2.5	0.4	-0.5	0.9	0.6	-1.8	1.0	-1.3	-0.9
Percentage of GoodwillOtherIncreaseDecrease	40.0	-17.5	22.4	18.4	60.0	92.6	19.0	13.9	56.2	-150.0	54.5	55.6	23.6	-75.0

us-gaap:GoodwillPurchaseAccountingAdjustments

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	96	0.1	-0.1	0.8	5.0	14	0.0	0.1	-0.1	1.9
Percentage of GoodwillPurchaseAccountingAdjustments	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0

us-gaap:GoodwillPurchaseAccountingAdjustments us-gaap:StatementBusinessSegments

nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	0.0	0.1	-0.1	0.0	-0.1	13	0.0	0.0	0.1	-0.1	1.9
Percentage of GoodwillPurchaseAccountingAdjustments	0.0	100.0	100.0	0.0	-2.0	96.5	0.0	0.0	100.0	100.0	100.0

nvt:EnclosuresSegment

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	0.0	0.8	5.1	0.5	-9.1	0.0	0.0	0.0	0.0
Percentage of GoodwillPurchaseAccountingAdjustments	-0.0	100.0	102.0	3.5	0.0	0.0	0.0	-0.0	0.0

us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill

Period End	2020-09-30	2017-12-31
Value	8.2	16
Percentage of ImpairmentOfIntangibleAssetsExcludingGoodwill	100.0	100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	8.6	12	0.7	-12.2	-15.7	5.7	-10.2	-7.5	-1.3	8.8	-15.5	2.2	-2.0	8.0	-23.2	-17.1	27	6.8
Percentage of IncreaseDecreaseInOtherCurrentAssets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	4.2	2.5	4.9	13	-7.9	-8.6	-15.0	19	-19.0	-2.5	-2.5	5.9	4.7	19	-36.5	43	-14.2	28
Percentage of IncreaseDecreaseInOtherCurrentLiabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncreaseDecreaseInOtherEmployeeRelatedLiabilities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	16	7.1	-0.7	5.9	-0.1	-9.3	1.1	4.2	-0.7	-11.2	2.8	9.7	10	-16.5	10	6.4	2.9	-8.0
Percentage of IncreaseDecreaseInOtherEmployeeRelatedLiabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	-0.2	-1.9	-1.8	0.9	1.2	-0.2	8.6	2.2	-12.7	13	6.4	4.1	9.4	3.6	-6.9	-13.4	-2.2	-18.6
Percentage of IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	1700000.0	1100000.0	0	500000.0	500000.0	1200000.0	-100000.0	1200000.0	1500000.0	1700000.0	-100000.0	2200000.0	2300000.0	2200000.0	0	2200000.0	2200000.0	2200000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0

us-gaap:LeaseAndRentalExpense

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	5.3	4.9	5.0	5.1	5.7	5.0	4.9	4.2
Percentage of LeaseAndRentalExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingLeasePayments

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31
Value	3.6	4.6	4.6	4.6	12	8.5	3.9
Percentage of OperatingLeasePayments	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	-10.3	19	0.3	-5.4	-4.8	17	-4.4	2.3	12	-6.2	-1.3	0.5	-1.0	-0.7	0.6	0.0	-0.2	0.7
Percentage of OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax

us-gaap:InterestRateSwap

Period End	2021-03-31
Value	19
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	100.0

us-gaap:OtherNonoperatingExpense

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31
Value	600000.0	600000.0	700000.0	700000.0	800000.0	900000.0	1000000.0	900000.0	900000.0	5100000.0	1200000.0	1400000.0	1400000.0	1400000.0
Percentage of OtherNonoperatingExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherNonoperatingExpense us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	600000.0	600000.0	600000.0	700000.0	700000.0	800000.0	900000.0	900000.0	1000000.0	900000.0	-3300000.0	900000.0	5100000.0	1200000.0	1400000.0	1400000.0	1400000.0	1400000.0
Percentage of OtherNonoperatingExpense	100.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0

us-gaap:PaymentsForRestructuring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	2.2	3.2	6.3	4.9
Percentage of PaymentsForRestructuring	100.0	100.0	100.0	100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireBusinessesGross

nvt:CISGlobalLLC

Period End	2021-06-30
Value	203
Percentage of PaymentsToAcquireBusinessesGross	100.0

nvt:VynckierEnclosureSystemsInc

Period End	2021-04-01
Value	27
Percentage of PaymentsToAcquireBusinessesGross	0.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

nvt:VynckierEnclosureSystemsInc, us-gaap:SubsequentEvent

Period End	2021-04-01
Value	26
Percentage of PaymentsToAcquireBusinessesGross	0.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	228	3.9	0.0	0.0	0.0	27	0.0	127	0.0	0.0	0.0	0.0	0.0	2.0	0.0	0.1	0.0	13
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired	100.0	100.0	0.0	0.0	0.0	100.0	0.0	100.0	0.0	0.0	0.0	0.0	0.0	100.0	0.0	100.0	0.0	100.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30
Value	7.5	2.0	2.5	2.0	-0.3	3.0	4.2	0.1	4.2	1.0	-1.5	5.1	5.0	0.0	0.0	0.0
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	0.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	0	100000.0	500000.0	100000.0	300000.0	1100000.0	200000.0	0	100000.0	6000000.0	100000.0	0	0	2300000.0	300000.0	0	3900000.0	0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment	0.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	0.0	0.0	100.0	100.0	0.0	100.0	0.0

us-gaap:RestructuringAndRelatedCostIncurredCost

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	2.5	0.2	5.3	3.5
Percentage of RestructuringAndRelatedCostIncurredCost	100.0	100.0	100.0	100.0

us-gaap:RestructuringCharges

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	4.3	0.8	6.1	4.3	3.0	4.3	6.0	11	1.1	3.6	1.3	1.3	2.3	2.8	2.1	1.7	3.7	9.3
Percentage of RestructuringCharges	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RestructuringCharges us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	4.3	0.8	6.1	5.4	6.2	4.3	6.7	11	2.7	3.6	1.3	1.3	2.3	2.8	0.0	0.0	3.7	9.3
Percentage of RestructuringCharges	100.0	100.0	100.0	125.6	206.7	100.0	111.7	100.0	245.5	100.0	100.0	100.0	100.0	100.0	0.0	0.0	100.0	100.0

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

nvt:SeveranceAndRelatedCosts

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	2.5	0.2	5.3	3.5	2.7	3.5	5.2	10	0.7	2.8	0.9	1.3	2.3	2.8	1.5	1.7	3.7	9.1
Percentage of RestructuringCharges	58.1	25.0	86.9	81.4	90.0	81.4	86.7	97.3	63.6	77.8	69.2	100.0	100.0	100.0	71.4	100.0	100.0	97.8

us-gaap:OtherRestructuring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	1.8	0.6	0.8	0.8	0.3	0.8	0.8	0.3	0.4	0.8	0.4	0.0	0.0	0.0	0.6	0.0	0.0	0.2
Percentage of RestructuringCharges	41.9	75.0	13.1	18.6	10.0	18.6	13.3	2.7	36.4	22.2	30.8	0.0	0.0	0.0	28.6	0.0	0.0	2.2

us-gaap:RestructuringCharges us-gaap:StatementBusinessSegments

nvt:ElectricalandFasteningSolutionsSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	0.4	0.2	0.6	0.3	0.1	0.0	1.0	0.2	0.1	0.9	0.9	0.0	0.6	0.4	0.5	1.0	0.5	0.6
Percentage of RestructuringCharges	9.3	25.0	9.8	7.0	3.3	0.0	16.7	1.8	9.1	25.0	69.2	0.0	26.1	14.3	23.8	58.8	13.5	6.5

nvt:EnclosuresSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	2.2	1.0	3.4	0.9	1.1	3.1	3.7	1.5	0.1	0.0	0.1	0.0	0.9	0.3	1.1	0.5	2.0	3.1
Percentage of RestructuringCharges	51.2	125.0	55.7	20.9	36.7	72.1	61.7	13.4	9.1	0.0	7.7	0.0	39.1	10.7	52.4	29.4	54.1	33.3

nvt:ThermalManagementSegment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	1.1	0.2	1.9	1.7	1.5	1.1	1.0	2.8	0.8	2.0	-0.2	0.3	0.6	2.1	0.5	0.2	1.2	5.6
Percentage of RestructuringCharges	25.6	25.0	31.1	39.5	50.0	25.6	16.7	25.0	72.7	55.6	-15.4	23.1	26.1	75.0	23.8	11.8	32.4	60.2

us-gaap:AllOtherSegments

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30
Value	0.6	-0.6	1.4	0.3	0.1	6.7	0.1	0.7	1.0	0.2	0.0	0.0	0.0
Percentage of RestructuringCharges	14.0	-75.0	32.6	10.0	2.3	59.8	9.1	19.4	76.9	8.7	0.0	0.0	0.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31
Value	2.4	6.9	1.7	5.2	12	3.6	0.6
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:CommonStock

Period End	2021-03-31	2020-06-30	2020-03-31	2019-09-30	2019-03-31
Value	300000.0	100000.0	300000.0	100000.0	300000.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	100.0	100.0	100.0	100.0	100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31	2019-06-30	2019-03-31	2018-09-30	2018-06-30
Value	400000.0	200000.0	0	300000.0	300000.0	300000.0	300000.0	600000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	7.5	4.1	2.2	0.2	6.4	0.3	4.8	3.6	0.9	5.7	5.5
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	7.5	4.1	2.2	0.2	6.4	0.3	4.8	3.6	0.9	5.7	5.5
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:StockRepurchasedDuringPeriodShares

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	0	900000.0	0	0	200000.0	0	0	5900000.0	3000000.0
Percentage of StockRepurchasedDuringPeriodShares	0.0	100.0	0.0	0.0	100.0	0.0	0.0	100.0	100.0

us-gaap:StockRepurchasedDuringPeriodShares us-gaap:StatementEquityComponents

us-gaap:CommonStock

Period End	2021-03-31	2020-03-31	2019-06-30	2019-03-31
Value	900000.0	200000.0	5900000.0	3000000.0
Percentage of StockRepurchasedDuringPeriodShares	100.0	100.0	100.0	100.0

us-gaap:StockRepurchasedDuringPeriodValue

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	0.0	20	40	0.0	0.0	3.2	0.0	0.0	152	79
Percentage of StockRepurchasedDuringPeriodValue	0.0	100.0	100.0	0.0	0.0	100.0	0.0	0.0	100.0	100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

Period End	2021-03-31	2020-03-31	2019-06-30	2019-03-31
Value	20	3.2	152	79
Percentage of StockRepurchasedDuringPeriodValue	100.0	100.0	100.0	99.9

dei:EntityCommonStockSharesOutstanding

Period End	2020-12-31	2020-06-30	2020-03-31
Value	168	169	169
Percentage of EntityCommonStockSharesOutstanding	100.0	100.0	100.0

nvt:AssetsNoncurrentExcludingPropertyPlantAndEquipment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	3515	3316	3312	3316	3557
Percentage of AssetsNoncurrentExcludingPropertyPlantAndEquipment	100.0	100.0	100.0	100.0	100.0

nvt:ContractWithCustomerAssetLiabilityNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	33	32	34	31	43	46	55	50	61	60	61	54	58	56	55
Percentage of ContractWithCustomerAssetLiabilityNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:DeferredCompensationPlanAssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

nvt:DeferredCompensationPlanAssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	15	12	11	12	14	19	20	21	21	22
Percentage of DeferredCompensationPlanAssetsFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FairValueMeasuredAtNetAssetValuePerShare, us-gaap:FairValueMeasurementsRecurring

Period End	2020-12-31	2019-12-31	2018-12-31
Value	4.4	4.5	4.0
Percentage of DeferredCompensationPlanAssetsFairValueDisclosure	28.2	35.2	20.9

nvt:DeferredCompensationPlanAssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	20	17	16	15	19	23	25	24	23	25
Percentage of DeferredCompensationPlanAssetsFairValueDisclosure	128.2	135.2	135.6	129.8	129.3	120.9	120.2	115.0	108.9	109.6

nvt:DeferredTaxAssetInterestLimitation

Period End	2020-12-31	2019-12-31	2018-12-31
Value	15	20	7.7
Percentage of DeferredTaxAssetInterestLimitation	100.0	100.0	100.0

nvt:DeferredTaxAssetsOperatingLossAndTaxCreditCarryforwards

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	137	138	143	148
Percentage of DeferredTaxAssetsOperatingLossAndTaxCreditCarryforwards	100.0	100.0	100.0	100.0

nvt:DefinedBenefitPlanBasisUsedToDetermineOverallExpectedLongTermRateOfReturnsOnAssetsAssumptionHistorical us-gaap:Range

nvt:DefinedBenefitPlanBasisUsedToDetermineOverallExpectedLongTermRateOfReturnsOnAssetsAssumptionHistorical

srt:Maximum

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	5.0	0.0525	0.055	0.055
Percentage of DefinedBenefitPlanBasisUsedToDetermineOverallExpectedLongTermRateOfReturnsOnAssetsAssumptionHistorical	100.0	100.0	100.0	100.0

srt:Minimum

Period End	2020-12-31	2019-12-31	2018-12-31
Value	1.0	0.01	0.01
Percentage of DefinedBenefitPlanBasisUsedToDetermineOverallExpectedLongTermRateOfReturnsOnAssetsAssumptionHistorical	20.0	19.0	18.2

nvt:DefinedBenefitPlanExpectedFutureBenefitPaymentsAfterYearFive us-gaap:RetirementPlanType

nvt:DefinedBenefitPlanExpectedFutureBenefitPaymentsAfterYearFive

us-gaap:DefinedBenefitPostretirementHealthCoverage

Period End	2020-12-31	2019-12-31	2018-12-31
Value	5.1	5.3	5.4
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsAfterYearFive	100.0	100.0	100.0

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31
Value	42	37	35
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsAfterYearFive	841.2	701.9	664.8

nvt:DerivativeNotionalAmounts us-gaap:DerivativeInstrumentRisk

nvt:DerivativeNotionalAmounts

us-gaap:CurrencySwap

Period End	2020-12-31	2019-12-31
Value	329	303
Percentage of DerivativeNotionalAmounts	100.0	100.0

nvt:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour

Period End	2021-06-30
Value	70
Percentage of FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	100.0

nvt:OtherCurrentAssets

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	4100000.0	2400000.0	3200000.0	1800000.0
Percentage of OtherCurrentAssets	100.0	100.0	100.0	100.0

nvt:OtherLiabilitiesMiscellaneousNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	18	14	22	13	7.9	7.9	10	7.6	6.0	11	7.0	5.1	3.5	3.8	4.0
Percentage of OtherLiabilitiesMiscellaneousNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

nvt:OtherLongTermAssets

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	13	15	10	25
Percentage of OtherLongTermAssets	100.0	100.0	100.0	100.0

nvt:PensionandOtherPostretirementDefinedBenefitPlansAssetsNoncurrent us-gaap:RetirementPlanType

nvt:PensionandOtherPostretirementDefinedBenefitPlansAssetsNoncurrent

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	2100000.0	1700000.0	1000000.0	3800000.0
Percentage of PensionandOtherPostretirementDefinedBenefitPlansAssetsNoncurrent	100.0	100.0	100.0	100.0

us-gaap:AccountsAndNotesReceivableNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	409	351	313	327	300	333	334	375	349	342	340	365	365	355	349
Percentage of AccountsAndNotesReceivableNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccruedExchangeFeeRebateCurrentAndNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	55	43	40	36	31	31	44	40	38	31	46	40	36	31	42
Percentage of AccruedExchangeFeeRebateCurrentAndNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccruedIncomeTaxesNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	30	30	31	31	34	34	31	31	31	42	41	44	50	58	57
Percentage of AccruedIncomeTaxesNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	9000000.0	1900000.0	-2500000.0	700000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	100.0	100.0	100.0	100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	-104200000.0	-100500000.0	-105300000.0	-57800000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	100.0	100.0	100.0	100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	5800000.0	5800000.0	6200000.0	7500000.0	6500000.0	5700000.0	5400000.0	0	5900000.0	5800000.0	6100000.0	6200000.0	6400000.0	6400000.0	8400000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AociBeforeTaxAttributableToParent us-gaap:DerivativeInstrumentRisk

us-gaap:AociBeforeTaxAttributableToParent

us-gaap:InterestRateSwap

Period End	2021-06-30	2020-12-31
Value	10	2.1
Percentage of AociBeforeTaxAttributableToParent	100.0	100.0

us-gaap:AociLossCashFlowHedgeCumulativeGainLossAfterTax

Period End	2020-12-31
Value	6900000.0
Percentage of AociLossCashFlowHedgeCumulativeGainLossAfterTax	100.0

us-gaap:BuildingsAndImprovementsGross

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	185	181	185	180	177	176	181	178	174	172	172	175	167	173	170
Percentage of BuildingsAndImprovementsGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount

nvt:CISGlobalLLC

Period End	2021-06-30
Value	32
Percentage of BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	100.0

us-gaap:CommonStockValueOutstanding

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2017-12-31
Value	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1800000.0	0
Percentage of CommonStockValueOutstanding	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0

us-gaap:ContractWithCustomerAssetNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	47	44	45	42	56	61	69	65	72	72	74	68	73	69	69
Percentage of ContractWithCustomerAssetNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ContractWithCustomerLiability

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	14	12	11	11	13	14	13	15	11	12	13	13	15	13	14
Percentage of ContractWithCustomerLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DebtInstrumentCarryingAmount

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	1107	947	952	1057	1212	1215	1069	1155	1061	945	947	950	1000	800
Percentage of DebtInstrumentCarryingAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:CreditFacility

us-gaap:RevolvingCreditFacility

Period End	2020-12-31	2019-12-31	2018-12-31
Value	34	134	0.0
Percentage of DebtInstrumentCarryingAmount	3.6	12.6	0.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCredit, us-gaap:SeniorNotes

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2017-12-31
Value	107	112	117	122	127	131	135	138	142	145	147	150	200	0.0
Percentage of DebtInstrumentCarryingAmount	9.7	11.9	12.3	11.6	10.5	10.8	12.6	12.0	13.4	15.3	15.6	15.8	20.0	0.0

us-gaap:RevolvingCreditFacility, us-gaap:SeniorNotes

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	200	34	34	134	284	284	134	216	119	0.0
Percentage of DebtInstrumentCarryingAmount	18.1	3.7	3.6	12.7	23.5	23.4	12.6	18.7	11.2	0.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nvt:SeniorNotesFourPointFiveFivePercentDueTwentyTwentyEight, us-gaap:SeniorNotes

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	500	500	500	500	500	500	500	500	500	500	500	500	500	500	0.0
Percentage of DebtInstrumentCarryingAmount	45.1	52.8	52.5	47.3	41.3	41.1	46.7	43.3	47.1	52.9	52.8	52.6	50.0	62.5	0.0

nvt:SeniorNotesThreePointNineFivePercentDueTwentyTwentyThree, us-gaap:SeniorNotes

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	300	300	300	300	300	300	300	300	300	300	300	300	300	300	0.0
Percentage of DebtInstrumentCarryingAmount	27.1	31.7	31.5	28.4	24.8	24.7	28.0	26.0	28.3	31.7	31.7	31.6	30.0	37.5	0.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	1107	947	952	1057	1212	1215	1069	1155	1061	945	947	950	1000	800	0.0
Percentage of DebtInstrumentCarryingAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0

us-gaap:EstimateOfFairValueFairValueDisclosure

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	1209	1045	1067	1166	1309	1257	1133	1217	1105	962	941	943	999	818	0.0
Percentage of DebtInstrumentCarryingAmount	109.2	110.4	112.1	110.3	108.1	103.5	105.9	105.3	104.1	101.9	99.3	99.3	99.9	102.2	0.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	3600000.0	3900000.0	4100000.0	4300000.0	4500000.0	4700000.0	5000000.0	5200000.0	5400000.0	5600000.0	5800000.0	6000000.0	-6300000.0	7000000.0	0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0

us-gaap:DebtWeightedAverageInterestRate us-gaap:CreditFacility

us-gaap:DebtWeightedAverageInterestRate

us-gaap:RevolvingCreditFacility

Period End	2020-12-31	2019-12-31
Value	1.52	0.03174
Percentage of DebtWeightedAverageInterestRate	100.0	100.0

us-gaap:DebtWeightedAverageInterestRate us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCredit, us-gaap:SeniorNotes

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	1.479	1.484	1.52	1.52	0.01555	0.02304	0.0316	0.03432	0.03769	0.03864	0.03795	0.03617	0.03466
Percentage of DebtWeightedAverageInterestRate	0.0	0.0	100.0	0.0	0.0	0.0	99.6	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RevolvingCreditFacility, us-gaap:SeniorNotes

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30
Value	1.479	1.484	1.52	0.01559	0.0233	0.03416	0.03779
Percentage of DebtWeightedAverageInterestRate	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:DebtWeightedAverageInterestRate us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nvt:SeniorNotesFourPointFiveFivePercentDueTwentyTwentyEight, us-gaap:SeniorNotes

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31
Value	4.55	4.55	4.55	0.0455	0.0455	0.0455	0.0455	0.0455	0.0455	0.0455	0.0455
Percentage of DebtWeightedAverageInterestRate	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

nvt:SeniorNotesThreePointNineFivePercentDueTwentyTwentyThree, us-gaap:SeniorNotes

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31
Value	3.95	3.95	3.95	0.0395	0.0395	0.0395	0.0395	0.0395	0.0395	0.0395	0.0395
Percentage of DebtWeightedAverageInterestRate	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:DeferredCompensationLiabilityCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	20	18	20	17	16	13	17	16	15	19	23	25	24	23	25
Percentage of DeferredCompensationLiabilityCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredCompensationPlanAssets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	20	18	20	17	16	13	17	16	15	19	23	25	24	23	25
Percentage of DeferredCompensationPlanAssets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredCompensationPlanAssets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	15	14	15	13	12	9.8	12
Percentage of DeferredCompensationPlanAssets	77.0	76.7	78.0	77.7	73.6	71.0	74.0

us-gaap:FairValueMeasuredAtNetAssetValuePerShare, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	4.7	4.4	4.4	4.0	4.3	4.0	4.5
Percentage of DeferredCompensationPlanAssets	23.0	23.3	22.0	22.3	26.4	29.0	26.0

us-gaap:DeferredCompensationPlanAssets us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	20	18	20	17	16	13	17
Percentage of DeferredCompensationPlanAssets	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredIncomeTaxAssetsNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	19	30	29	25	24	30	40
Percentage of DeferredIncomeTaxAssetsNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredIncomeTaxLiabilities

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	275	297	283	308
Percentage of DeferredIncomeTaxLiabilities	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsGross

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	229	226	200	191
Percentage of DeferredTaxAssetsGross	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

Period End	2020-12-31
Value	484
Percentage of DeferredTaxAssetsOperatingLossCarryforwards	100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

Period End	2020-12-31
Value	400
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomestic	100.0

us-gaap:DeferredTaxAssetsOther

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	10	9.0	7.7	0.0
Percentage of DeferredTaxAssetsOther	100.0	100.0	100.0	0.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsForeign

Period End	2020-12-31
Value	3100000.0
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsForeign	100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	16	11	12	14
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	41	36	26	17
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	8.5	10	10	10
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	240	262	260	290
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill us-gaap:StatementBusinessSegments

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill

nvt:ThermalManagementSegment

Period End	2020-12-31
Value	21
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	100.0

us-gaap:DeferredTaxLiabilitiesOther

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	18	18	7.6	5.9
Percentage of DeferredTaxLiabilitiesOther	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	17	17	15	12
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	234	199	191	185
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	2.17	0.0308	0.041	0.034	0.038
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	100.0	100.0	100.0	100.0	100.0

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	1.26	0.0154	0.0225	0.0225	0.0209
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	58.1	50.0	54.9	66.2	55.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	2.96	0.0297	0.0297	0.0298	0.0298
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	18	17	16	18	17
Percentage of DefinedBenefitPlanBenefitObligation	100.0	100.0	100.0	100.0	100.0

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	241	210	199	195	173
Percentage of DefinedBenefitPlanBenefitObligation	1304.9	1218.5	1231.5	1073.1	970.9

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31
Value	5500000.0	4600000.0	4700000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPostretirementHealthCoverage

Period End	2020-12-31	2019-12-31	2018-12-31
Value	1100000.0	1200000.0	1200000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	100.0	100.0	100.0

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31
Value	6500000.0	6900000.0	7800000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	590.9	575.0	650.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31
Value	7700000.0	5200000.0	5200000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31
Value	5700000.0	7400000.0	4900000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31
Value	6000000.0	5000000.0	4500000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:FixedIncomeSecurities, us-gaap:FairValueInputsLevel2, nvt:ForeignGovernment, us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	12	11	27	26
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:RetirementPlanType

us-gaap:CashAndCashEquivalents, us-gaap:FairValueInputsLevel2, us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	1.3	1.2	1.5	1.7
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	10.2	10.1	5.5	6.3

us-gaap:OtherInvestments, us-gaap:FairValueInputsLevel2, us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	3.8	3.1	3.5	2.2
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	29.9	26.1	12.9	8.2

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:RetirementPlanType

us-gaap:FairValueInputsLevel12And3, us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31
Value	17	16
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	140.2	136.1

us-gaap:FairValueMeasuredAtNetAssetValuePerShare, us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31
Value	13	12	9.7
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	105.5	105.0	35.8

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	31	28	41	42	35
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	245.7	241.2	154.2	156.9	0.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	-18500000.0	-17300000.0	-16200000.0	-18200000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan	100.0	100.0	100.0	100.0

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	-210200000.0	-182100000.0	-157700000.0	-153100000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan	1136.2	1052.6	973.5	841.2

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets

Period End	2020-12-31	2019-12-31	2018-12-31
Value	15	14	30
Percentage of DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation

Period End	2020-12-31	2019-12-31	2018-12-31
Value	227	198	188
Percentage of DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	221	187	177	158
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	15	14	27	11
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	227	198	185	168
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations

nvt:OtherSecurities, us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	12.0	0.11	0.08	0.05
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations	100.0	100.0	100.0	100.0

us-gaap:Cash, us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	4.0	0.04	0.04	0.04
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations	33.3	36.4	50.0	80.0

us-gaap:EquitySecurities, us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	43.0	0.43	0.23	0.27
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations	358.3	390.9	287.5	540.0

us-gaap:FixedIncomeSecurities, us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	41.0	0.42	0.65	0.64
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations	341.7	381.8	812.5	1280.0

us-gaap:DerivativeAssets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssets

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31
Value	10	19	2.1
Percentage of DerivativeAssets	100.0	100.0	100.0

us-gaap:DerivativeAssets us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31
Value	10	19	2.1
Percentage of DerivativeAssets	100.0	100.0	100.0

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	15	14	15	13	12	9.8	12	11	12	14	19	20	21	21	22
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	2.1	17	-11.3	0.1	14	20	4.2	16	8.6	-2.2	1.4	3.7	2.2	1.9	2.9
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	13.4	117.9	-72.4	0.7	120.8	212.2	32.8	139.0	71.1	-15.0	7.3	17.8	10.3	8.9	12.7

us-gaap:FairValueMeasuredAtNetAssetValuePerShare, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2018-12-31
Value	4.7	4.4	4.4	4.0	4.3	4.0	4.5	4.0
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	29.9	30.3	28.2	28.8	35.8	40.8	35.2	20.9

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	22	36	8.7	18	30	34	21	28	20	12	20	24	23	23	25
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	143.3	248.3	55.8	129.5	256.7	353.1	168.0	239.0	171.1	85.0	107.3	117.8	110.3	108.9	112.7

us-gaap:DerivativeLiabilityNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeLiabilityNotionalAmount

us-gaap:ForeignExchangeContract

Period End	2020-12-31	2019-12-31
Value	41	34
Percentage of DerivativeLiabilityNotionalAmount	100.0	100.0

us-gaap:DerivativeNotionalAmount

Period End	2020-12-31
Value	200
Percentage of DerivativeNotionalAmount	100.0

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:CurrencySwap

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	387	316	329	303	303	303	303
Percentage of DerivativeNotionalAmount	0.0	0.0	164.5	0.0	0.0	0.0	0.0

us-gaap:ForeignExchangeContract

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	103	28	41	40	38	27	34
Percentage of DerivativeNotionalAmount	0.0	0.0	20.9	0.0	0.0	0.0	0.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	95	76	70	68	61	60	71	70	64	64	75	74	63	60	75
Percentage of EmployeeRelatedLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	430	414	398	381	365	348	333	317	302	287	272	257	242	227	212
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	421	405	389	373	356	340	326	310	295	280	266	252	237	222	207
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	97.8	97.8	97.8	97.8	97.8	97.8	97.8	97.8	97.8	97.8	97.8	97.8	97.7	97.8	97.7

us-gaap:PatentedTechnology

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	9.5	9.2	8.8	8.5	8.1	7.8	7.4	7.0	6.7	6.4	6.1	5.8	5.5	5.1	4.8
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.3	2.2	2.3

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

Period End	2021-03-31	2020-12-31	2020-09-30
Value	62	62	62
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

Period End	2021-06-30
Value	71
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

Period End	2021-06-30	2021-03-31	2020-09-30
Value	35	47	16
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

Period End	2021-03-31	2020-12-31	2020-09-30
Value	62	62	62
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	70	62	63	62
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	70	63	63	63
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	70	63	63	63
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsGross

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	1336	1230	1230	1226	1223	1221	1212	1210	1165	1164	1164	1166	1165	1166	1167
Percentage of FiniteLivedIntangibleAssetsGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	1295	1213	1214	1209	1207	1205	1197	1196	1150	1149	1149	1151	1150	1152	1153
Percentage of FiniteLivedIntangibleAssetsGross	96.9	98.7	98.7	98.7	98.7	98.7	98.8	98.8	98.7	98.7	98.7	98.7	98.7	98.7	98.7

us-gaap:PatentedTechnology

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	40	16	16	16	16	16	14	14	14	14	14	14	14	14	14
Percentage of FiniteLivedIntangibleAssetsGross	3.1	1.3	1.3	1.3	1.3	1.3	1.2	1.2	1.3	1.3	1.3	1.3	1.3	1.3	1.3

us-gaap:ForeignCurrencyContractAssetFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignCurrencyContractAssetFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2017-12-31
Value	0.7	3.5	0.9	5.3	14	21	7.6	13	5.0	0.7
Percentage of ForeignCurrencyContractAssetFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ForeignCurrencyContractAssetFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2017-12-31
Value	0.7	3.5	0.9	5.3	14	21	7.6	13	5.0	0.7
Percentage of ForeignCurrencyContractAssetFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	9.4	5.7	14	5.2	0.1	0.2	3.4	0.8	6.5	2.6	0.5	1.0
Percentage of ForeignCurrencyContractsLiabilityFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	9.4	5.7	14	5.2	0.1	0.2	3.4	0.8	6.5	2.6	0.5	1.0
Percentage of ForeignCurrencyContractsLiabilityFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:GuaranteeObligationsCurrentCarryingValue us-gaap:GuaranteeObligationsByNature

us-gaap:GuaranteeObligationsCurrentCarryingValue

us-gaap:PaymentGuarantee

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	46	44	43	41	69	67	70	63	68	69	75	79	73	68	72
Percentage of GuaranteeObligationsCurrentCarryingValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	1609	1503	1503	1499	1504	1503	1494	1492	1446	1445	1445	1447	1446	1448	1448
Percentage of IntangibleAssetsGrossExcludingGoodwill	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:InventoryWorkInProcess

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	30	26	24	25	25	27	25	28	26	26	25	25	25	25	25
Percentage of InventoryWorkInProcess	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LandAndLandImprovements

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	40	40	41	40	39	39	40	40	39	39	39	38	38	39	39
Percentage of LandAndLandImprovements	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

Period End	2020-12-31	2020-09-30	2019-12-31
Value	16	15	16
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	100.0	100.0	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

Period End	2020-09-30
Value	4600000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	100.0

us-gaap:LettersOfCreditOutstandingAmount

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	43	70	75	72
Percentage of LettersOfCreditOutstandingAmount	100.0	100.0	100.0	100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:RevolvingCreditFacility, us-gaap:SeniorNotes

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	400	565	565	465
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity	100.0	100.0	100.0	100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

Period End	2020-12-31	2020-09-30
Value	412	512
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	100.0	100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	577	412	20	20
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	100.0	100.0	100.0	100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

Period End	2021-06-30	2021-03-31	2020-09-30
Value	10.0	15	5.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear	100.0	100.0	100.0

us-gaap:LongtermDebtPercentageBearingFixedInterestAmount us-gaap:FairValueByMeasurementBasis

us-gaap:LongtermDebtPercentageBearingFixedInterestAmount

us-gaap:CarryingReportedAmountFairValueDisclosure

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	800	800	800	800	800	800	800	800	800	800	800	800	800	800	0.0
Percentage of LongtermDebtPercentageBearingFixedInterestAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0

us-gaap:EstimateOfFairValueFairValueDisclosure

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	902	898	915	909	897	842	863	861	843	817	793	793	798	818	0.0
Percentage of LongtermDebtPercentageBearingFixedInterestAmount	112.8	112.3	114.4	113.6	112.2	105.2	107.9	107.7	105.5	102.2	99.2	99.1	99.8	102.2	0.0

us-gaap:LongtermDebtPercentageBearingVariableInterestAmount us-gaap:FairValueByMeasurementBasis

us-gaap:LongtermDebtPercentageBearingVariableInterestAmount

us-gaap:CarryingReportedAmountFairValueDisclosure

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2017-12-31
Value	307	147	152	257	412	415	269	355	261	145	147	150	200	0.0
Percentage of LongtermDebtPercentageBearingVariableInterestAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0

us-gaap:EstimateOfFairValueFairValueDisclosure

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2017-12-31
Value	307	147	152	257	412	415	269	355	261	145	147	150	200	0.0
Percentage of LongtermDebtPercentageBearingVariableInterestAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0

us-gaap:NetInvestmentHedgeDerivativesAtFairValueNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	7.2	9.1	6.9	8.7	14	18	1.9
Percentage of NetInvestmentHedgeDerivativesAtFairValueNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	3.5	3.7	0.038	0.039	4.0	4.1	0.045	0.043
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDueThereafter

Period End	2020-09-30	2019-09-30	2019-06-30	2019-03-31	2018-12-31
Value	9.9	10	9.1	7.4	9.6
Percentage of OperatingLeasesFutureMinimumPaymentsDueThereafter	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherAssetsMiscellaneousCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	2.7	3.7	4.1	2.6	2.6	2.4	2.4	2.6	2.7	3.3	3.2	10	3.8	1.7	1.8
Percentage of OtherAssetsMiscellaneousCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherAssetsMiscellaneousNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	24	34	13	17	27	32	15	26	15	10	10	31	31	26	25
Percentage of OtherAssetsMiscellaneousNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherPrepaidExpenseCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	47	45	29	33	32	37	32
Percentage of OtherPrepaidExpenseCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	4300000.0	3700000.0	3800000.0	3500000.0
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	100.0	100.0	100.0	100.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	18	17	16	18
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	100.0	100.0	100.0	100.0

us-gaap:PensionPlansDefinedBenefit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	210	182	157	153
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	1136.2	1052.6	973.5	841.2

us-gaap:PrepaidExpenseCurrent

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	29	32	39	36	37	31	36	46	29	29
Percentage of PrepaidExpenseCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:PrepaidTaxes

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	18	10	13	10	9.4	15	9.0	15	13	13	9.1	12	12	6.5	31
Percentage of PrepaidTaxes	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RestructuringReserve

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2016-12-31
Value	3.9	3.6	6.6	7.6	9.0	9.9	9.5	9.3	2.0	4.9	3.8	3.9	4.4	3.9	5.1	10
Percentage of RestructuringReserve	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueRemainingPerformanceObligation

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	47	95	86	82
Percentage of RevenueRemainingPerformanceObligation	100.0	100.0	100.0	100.0

us-gaap:StockRepurchaseProgramAuthorizedAmount1

Period End	2021-06-30	2021-05-14	2021-03-31	2020-09-30	2019-02-19	2018-07-23
Value	880	300	880	880	380	500
Percentage of StockRepurchaseProgramAuthorizedAmount1	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased

Period End	2020-12-31
Value	880
Percentage of StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	100.0

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	525	525	545	585
Percentage of StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	100.0	100.0	100.0	100.0

us-gaap:TaxesPayableCurrentAndNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	22	24	32	21	19	18	24	35	28	25	27	36	55	42	41
Percentage of TaxesPayableCurrentAndNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	2300000.0	1700000.0	1700000.0	2000000.0
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	100.0	100.0	100.0	100.0

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	3500000.0	3000000.0	2700000.0	6600000.0
Percentage of UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	100.0	100.0	100.0	100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

Period End	2020-12-31
Value	15
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	100.0

Line plots across dimensions of each concept

Operating Margin
us-gaap:StatementBusinessSegments
(None,)

TTM Greenblatt ROC
_
(None,)

us-gaap:OperatingIncomeLoss
us-gaap:StatementBusinessSegments
(None,)

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments
(None,)

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical
(None,)

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:EquitySecuritiesByIndustry
(None,)

us-gaap:Assets
us-gaap:StatementBusinessSegments
(None,)

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical
(None,)

us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)

us-gaap:LongTermDebt
us-gaap:FairValueByMeasurementBasis
(None,)

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanType
(None,)

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
(None,)

NVT

Table of contents

Plots across concepts

Tables

Shares Outstanding

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit

Interest Income Expense Net

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:OperatingSegments

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments

nvt:ElectricalandFasteningSolutionsSegment

nvt:EnclosuresSegment

nvt:ThermalManagementSegment

us-gaap:AllOtherSegments

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EquitySecuritiesByIndustry

nvt:CommercialAndResidentialSector