Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income (loss)	$ 299	$ 973	$ (5,813)	$ 3,300
Other comprehensive income, net of tax
Change in unrealized appreciation (depreciation) of fixed maturity securities on which allowance for credit losses was taken	79	0	(154)	0
Change in unrealized appreciation (depreciation) of fixed maturity securities on which other-than-temporary credit impairments were taken	0	(2)	0	756
Change in unrealized appreciation of all other investments	1,385	656	5,925	6,278
Change in foreign currency translation adjustments	352	(34)	206	1
Change in retirement plan liabilities adjustment	(1)	7	1	14
Change in fair value of liabilities under fair value option attributable to changes in own credit risk	1	1	2	(1)
Other comprehensive income	1,816	628	5,980	7,048
Comprehensive income	2,115	1,601	167	10,348
Comprehensive income attributable to noncontrolling interests	18	321	62	901
Comprehensive income attributable to AIG	$ 2,097	$ 1,280	$ 105	$ 9,447