Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 1,144	$ (3,884)	$ 1,842	$ (2,284)
Other comprehensive income (loss), net of tax
Change in unrealized appreciation (depreciation) of fixed maturity securities on which allowance for credit losses was taken	(6)	5	(2)	26
Change in unrealized appreciation (depreciation) of all other investments	492	(160)	917	(275)
Change in the discount rates used to measure traditional and limited payment long-duration insurance contracts	1	(92)	7	(90)
Change in foreign currency translation adjustments	429	35	623	(310)
Change in retirement plan liabilities adjustment	0	10	7	17
Change in other comprehensive income (loss) related to discontinued operations	0	(318)	0	(945)
Corebridge deconsolidation	0	7,214	0	7,214
Other comprehensive income	916	6,694	1,552	5,637
Comprehensive income	2,060	2,810	3,394	3,353
Less: Comprehensive income attributable to noncontrolling interests	0	93	1	179
Comprehensive income attributable to AIG	$ 2,060	$ 2,717	$ 3,393	$ 3,174