Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 11,275	$ 9,923	$ (5,829)
Other comprehensive income (loss), net of tax
Change in unrealized appreciation (depreciation) of fixed maturity securities on which allowance for credit losses was taken	(87)	35	(95)
Change in unrealized appreciation (depreciation) of all other investments	(32,775)	(6,001)	8,354
Change in foreign currency translation adjustments	(514)	(187)	359
Change in retirement plan liabilities adjustment	(20)	325	(106)
Change in fair value of liabilities under fair value option attributable to changes in own credit risk	(6)	(2)	1
Other comprehensive income (loss)	(33,402)	(5,830)	8,513
Comprehensive income (loss)	(22,127)	4,093	2,684
Comprehensive income (loss) attributable to noncontrolling interests	(1,584)	430	99
Comprehensive income (loss) attributable to AIG	$ (20,543)	$ 3,663	$ 2,585