CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ 949	$ 1,211
Other comprehensive income (loss), net of tax
Change in unrealized appreciation (depreciation) of fixed maturity securities on which other-than-temporary credit impairments were taken	(150)	114
Change in unrealized appreciation (depreciation) of all other investments	(2,708)	695
Change in foreign currency translation adjustments	158	(276)
Change in retirement plan liabilities adjustment	29	18
Change in fair value of liabilities under fair value option attributable to changes in own credit risk	2	0
Other comprehensive income (loss)	(2,669)	551
Comprehensive income (loss)	(1,720)	1,762
Comprehensive income (loss) attributable to noncontrolling interests	11	26
Comprehensive income (loss) attributable to AIG	$ (1,731)	$ 1,736