XML 67 R6.htm IDEA: XBRL DOCUMENT v2.4.1.9
Consolidated Statements of Equity (USD $)
In Millions
Total
Preferred Stock
Common Stock
Additional Paid-in Capital
Common Stock Held in Treasury
Retained Earnings
Defined Benefit Plans
Derivative Instruments and Hedging Activities
Cumulative Translation Adjustments
Lear Corporation Stockholders’ Equity
Non-controlling Interests
Balance at beginning of period at Dec. 31, 2011 $ 2,561.1us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest   $ 1.1us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 2,150.6us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (305.6)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
$ 922.3us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ (239.1)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
$ (37.6)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
$ (55.3)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
$ 2,436.4us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
$ 124.7us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Net income 1,317.2us-gaap_ProfitLoss         1,282.8us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
      1,282.8us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
34.4us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Other comprehensive income (loss) 32.4us-gaap_OtherComprehensiveIncomeLossNetOfTax           (10.8)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
40.3us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
1.7us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
31.2us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
1.2us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Total comprehensive income (loss) 1,349.6us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest         1,282.8us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
(10.8)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
40.3us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
1.7us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
1,314.0us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
35.6us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Stock-based compensation 26.8us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue     39.8us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(13.0)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
        26.8us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Excess tax benefits related to stock-based compensation 0.3us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation     0.3us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
          0.3us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Stock issued during period, treasury stock       (23.5)lea_StockIssuedDuringPeriodFromTreasuryStockValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
23.5lea_StockIssuedDuringPeriodFromTreasuryStockValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
           
Value of common stock repurchased (222.8)us-gaap_TreasuryStockValueAcquiredCostMethod       (222.8)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
        (222.8)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Dividends declared to Lear Corporation stockholders (56.1)us-gaap_DividendsCommonStockCash         (56.1)us-gaap_DividendsCommonStockCash
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
      (56.1)us-gaap_DividendsCommonStockCash
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Dividends paid to noncontrolling interests (23.1)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders                   (23.1)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Acquisition of outstanding noncontrolling interests (23.6)us-gaap_StockholdersEquityOther     (11.5)us-gaap_StockholdersEquityOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
          (11.5)us-gaap_StockholdersEquityOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
(12.1)us-gaap_StockholdersEquityOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Balance at end of period at Dec. 31, 2012 3,612.2us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest   1.1us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
2,155.7us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(517.9)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
2,149.0us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
(249.9)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
2.7us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(53.6)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
3,487.1us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
125.1us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Net income 455.8us-gaap_ProfitLoss         431.4us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
      431.4us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
24.4us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Other comprehensive income (loss) 136.2us-gaap_OtherComprehensiveIncomeLossNetOfTax           145.4us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
(8.0)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(2.7)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
134.7us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
1.5us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Total comprehensive income (loss) 592.0us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest         431.4us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
145.4us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
(8.0)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(2.7)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
566.1us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
25.9us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Stock-based compensation 55.3us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue     59.4us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(4.1)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
        55.3us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Excess tax benefits related to stock-based compensation 0.1us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation     0.1us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
          0.1us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Stock issued during period, treasury stock       (9.4)lea_StockIssuedDuringPeriodFromTreasuryStockValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
9.4lea_StockIssuedDuringPeriodFromTreasuryStockValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
           
Value of common stock repurchased (1,000.1)us-gaap_TreasuryStockValueAcquiredCostMethod     (160.0)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(840.1)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
        (1,000.1)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Retirement of shares held in treasury     (0.2)us-gaap_TreasuryStockRetiredCostMethodAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
(389.7)us-gaap_TreasuryStockRetiredCostMethodAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
990.6us-gaap_TreasuryStockRetiredCostMethodAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
(600.7)us-gaap_TreasuryStockRetiredCostMethodAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
         
Dividends declared to Lear Corporation stockholders (59.4)us-gaap_DividendsCommonStockCash         (59.4)us-gaap_DividendsCommonStockCash
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
      (59.4)us-gaap_DividendsCommonStockCash
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Dividends paid to noncontrolling interests (44.0)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders                   (44.0)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Acquisition of outstanding noncontrolling interests (6.6)us-gaap_StockholdersEquityOther     (3.2)us-gaap_StockholdersEquityOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
          (3.2)us-gaap_StockholdersEquityOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
(3.4)us-gaap_StockholdersEquityOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Balance at end of period at Dec. 31, 2013 3,149.5us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest   0.9us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
1,652.9us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(362.1)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
1,920.3us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
(104.5)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
(5.3)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(56.3)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
3,045.9us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
103.6us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Net income 702.3us-gaap_ProfitLoss         672.4us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
      672.4us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
29.9us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Other comprehensive income (loss) (337.8)us-gaap_OtherComprehensiveIncomeLossNetOfTax           (114.7)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
(27.9)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(193.3)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
(335.9)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
(1.9)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Total comprehensive income (loss) 364.5us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest         672.4us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
(114.7)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
(27.9)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
(193.3)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
336.5us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
28.0us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Stock Issued During Period, Value, Other   0us-gaap_StockIssuedDuringPeriodValueOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_PreferredStockMember
0us-gaap_StockIssuedDuringPeriodValueOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
0us-gaap_StockIssuedDuringPeriodValueOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
0us-gaap_StockIssuedDuringPeriodValueOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
0us-gaap_StockIssuedDuringPeriodValueOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
         
Stock-based compensation 48.3us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue     70.7us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(22.4)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
        48.3us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Excess tax benefits related to stock-based compensation 0.9us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation     0.9us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
          0.9us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Stock issued during period, treasury stock       (43.6)lea_StockIssuedDuringPeriodFromTreasuryStockValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
43.6lea_StockIssuedDuringPeriodFromTreasuryStockValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
           
Value of common stock repurchased (411.4)us-gaap_TreasuryStockValueAcquiredCostMethod     (55.5)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(355.9)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
        (411.4)us-gaap_TreasuryStockValueAcquiredCostMethod
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Retirement of shares held in treasury     (0.1)us-gaap_TreasuryStockRetiredCostMethodAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
(155.9)us-gaap_TreasuryStockRetiredCostMethodAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
519.9us-gaap_TreasuryStockRetiredCostMethodAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
(363.9)us-gaap_TreasuryStockRetiredCostMethodAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
         
Dividends declared to Lear Corporation stockholders (67.1)us-gaap_DividendsCommonStockCash         (67.1)us-gaap_DividendsCommonStockCash
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
      (67.1)us-gaap_DividendsCommonStockCash
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
 
Dividends paid to noncontrolling interests (25.9)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders                   (25.9)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Acquisition of outstanding noncontrolling interests (18.0)us-gaap_StockholdersEquityOther     5.7us-gaap_StockholdersEquityOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
          5.7us-gaap_StockholdersEquityOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
(23.7)us-gaap_StockholdersEquityOther
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Sale of controlling interest (11.5)us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation     0us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
            (11.5)us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Balance at end of period at Dec. 31, 2014 $ 3,029.3us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest   $ 0.8us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 1,475.2us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (176.9)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
$ 2,161.7us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ (219.2)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
$ (33.2)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
$ (249.6)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
$ 2,958.8us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember
$ 70.5us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember