Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 3,392	$ 150	$ 8,048	$ 4,080
Other comprehensive income (loss), net of tax
Change in unrealized appreciation (depreciation) of fixed maturity securities on which allowance for credit losses was taken	40	4	(5)	37
Change in unrealized appreciation (depreciation) of all other investments	(12,538)	3,710	(26,145)	(3,489)
Change in foreign currency translation adjustments	(281)	14	(286)	139
Change in retirement plan liabilities adjustment	16	14	25	11
Change in fair value of liabilities under fair value option attributable to changes in own credit risk	(4)	0	(4)	(1)
Other comprehensive income (loss)	(12,767)	3,742	(26,415)	(3,303)
Comprehensive income (loss)	(9,375)	3,892	(18,367)	777
Comprehensive income (loss) attributable to noncontrolling interests	(655)	50	(1,320)	104
Comprehensive income (loss) attributable to AIG	$ (8,720)	$ 3,842	$ (17,047)	$ 673