Changes in Fair Value of Level 3 Plan Assets (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
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Dec. 31, 2014
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Dec. 31, 2013
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Defined Benefit Plan Disclosure [Line Items] | ||
Beginning Balance | $ 3,823us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue | $ 3,902us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue |
Realized gains, net | 260lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets | 212lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets |
Unrealized gains (losses), net | 28lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets | 166lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets |
Purchases, sales, and settlements, net | 207us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements | (441)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements |
Transfers into (out of) Level 3, net | (72)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet | (16)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet |
Ending Balance | 4,246us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue | 3,823us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue |
Private equity funds | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Beginning Balance | 2,601us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
2,461us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
Realized gains, net | 182lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
144lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
Unrealized gains (losses), net | 38lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
42lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
Purchases, sales, and settlements, net | 131us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
(46)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
Ending Balance | 2,952us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
2,601us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_PrivateEquityFundsMember |
Real estate funds | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Beginning Balance | 572us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
504us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
Realized gains, net | 43lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
43lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
Unrealized gains (losses), net | 22lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
19lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
Purchases, sales, and settlements, net | 92us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
(3)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
Transfers into (out of) Level 3, net | 9us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
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Ending Balance | 729us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
572us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_RealEstateFundsMember |
Hedge funds | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Beginning Balance | 505us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
806us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
Realized gains, net | 34lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
21lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
Unrealized gains (losses), net | (11)lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
104lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
Purchases, sales, and settlements, net | (24)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
(394)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
Transfers into (out of) Level 3, net | (32)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
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Ending Balance | 504us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
505us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_HedgeFundsMember |
Other | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Beginning Balance | 145us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
131us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
Realized gains, net | 1lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
4lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
Unrealized gains (losses), net | (21)lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
1lmt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainsLossesNetOnPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
Purchases, sales, and settlements, net | 8us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
2us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
Transfers into (out of) Level 3, net | (72)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
7us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
Ending Balance | $ 61us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
$ 145us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = lmt_OtherFundsMember |
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- Definition
This element represents the amount of gains or losses realized on sales of plan assets measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period. No definition available.
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- Definition
This element represents the amount of unrealized gains or losses on plan assets measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period. No definition available.
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- Definition
Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy. No definition available.
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- Definition
Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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