Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ (1,259)	$ (1,713)	$ 621	$ 616
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	107	97	(1,089)	330
Change in unrealized appreciation (depreciation) of all other investments	(758)	492	(4,222)	1,840
Change in foreign currency translation adjustments	(129)	325	(181)	447
Change in retirement plan liabilities adjustment	14	63	66	92
Change in fair value of liabilities under fair value option attributable to changes in own credit risk	0	0	1	0
Other comprehensive income (loss)	(766)	977	(5,425)	2,709
Comprehensive income (loss)	(2,025)	(736)	(4,804)	3,325
Total comprehensive income (loss) attributable to noncontrolling interests	0	26	5	40
Comprehensive income (loss) attributable to AIG	$ (2,025)	$ (762)	$ (4,809)	$ 3,285