Condensed Consolidated Statements of Equity (unaudited) - USD ($) $ in Millions	Total	Total AIG Share- holders' Equity	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non- redeemable Non- controlling Interests
Balance, beginning of period at Dec. 31, 2024	$ 42,550	$ 42,521	$ 4,766	$ (65,573)	$ 75,348	$ 35,079	$ (7,099)	$ 29
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under stock plans	(7)	(7)		161	(168)
Purchase of common stock	(2,251)	(2,251)		(2,251)
Net income attributable to AIG or noncontrolling interests	698	698				698
Dividends on common stock	(234)	(234)				(234)
Other comprehensive (loss) income	636	635					635	1
Distributions to noncontrolling interests	(1)							(1)
Other	68	69		1	71	(3)		(1)
Balance, end of period at Mar. 31, 2025	41,459	41,431	4,766	(67,662)	75,251	35,540	(6,464)	28
Balance, beginning of period at Dec. 31, 2025	41,162	41,139	4,766	(71,199)	75,373	37,186	(4,987)	23
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under stock plans	(73)	(73)		76	(149)
Purchase of common stock	(524)	(524)		(524)
Net income attributable to AIG or noncontrolling interests	763	763				763
Dividends on common stock	(241)	(241)				(241)
Other comprehensive (loss) income	(728)	(728)					(728)
Other	70	69			73	(4)		1
Balance, end of period at Mar. 31, 2026	$ 40,429	$ 40,405	$ 4,766	$ (71,647)	$ 75,297	$ 37,704	$ (5,715)	$ 24