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INCOME TAXES (Details - Accounting For Uncertainty in Income Taxes) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Rollforward of the beginning and ending balances of the total amounts of gross unrecognized tax benefits      
Gross unrecognized tax benefits, beginning of year $ 4,340,000,000us-gaap_UnrecognizedTaxBenefits $ 4,385,000,000us-gaap_UnrecognizedTaxBenefits $ 4,279,000,000us-gaap_UnrecognizedTaxBenefits
Increases in tax positions for prior years 91,000,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 680,000,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 336,000,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
Decreases in tax positions for prior years (60,000,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions (796,000,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions (264,000,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Increases in tax positions for current year 10,000,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 43,000,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 47,000,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
Lapse in statute of limitations (6,000,000)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations (20,000,000)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations (8,000,000)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
Settlements 0aig_UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromSettlementsWithTaxingAuthorities (2,000,000)aig_UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromSettlementsWithTaxingAuthorities (5,000,000)aig_UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromSettlementsWithTaxingAuthorities
Activity of discontinued operations 20,000,000aig_UnrecognizedTaxBenefitsDiscontinuedOperations 50,000,000aig_UnrecognizedTaxBenefitsDiscontinuedOperations 0aig_UnrecognizedTaxBenefitsDiscontinuedOperations
Gross unrecognized tax benefits, end of year 4,395,000,000us-gaap_UnrecognizedTaxBenefits 4,340,000,000us-gaap_UnrecognizedTaxBenefits 4,385,000,000us-gaap_UnrecognizedTaxBenefits
Unrecognized tax benefits, if recognized would not affect the effective tax rate 300,000,000aig_UnrecognizedTaxBenefitsThatWouldNotImpactEffectiveTaxRate 100,000,000aig_UnrecognizedTaxBenefitsThatWouldNotImpactEffectiveTaxRate 200,000,000aig_UnrecognizedTaxBenefitsThatWouldNotImpactEffectiveTaxRate
Unrecognized tax benefits, if recognized would favorably affect the effective tax rate 4,100,000,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate 4,200,000,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate 4,200,000,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Unrecognized tax benefits, interest and penalties accrued 1,100,000,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued 1,100,000,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued  
Unrecognized tax benefits, interest net of the federal benefit (expense) and penalties $ 21,000,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense $ 142,000,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense $ 192,000,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
Unrecognized tax benefits, period of reasonably possible change in balance P12M