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No authoritative reference available. false 15 Provision for income taxes 1 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 128000000 128 false false false 2 false true false false 112000000 112 false false false The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. 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If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. 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No authoritative reference available. true 20 Net income allocable to L-3 Holdings' common shareholders 1 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 true true false false 219000000 219 false false false 2 true true false false 197000000 197 false false false Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). 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