Consolidated Statements of Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Premiums	$ 33,254	$ 31,856	$ 31,285
Policy fees	2,797	2,913	3,005
Total net investment income	14,592	11,767	14,612
Total net realized gains (losses)	(4,608)	7,064	2,271
Other income	767	850	984
Total revenues	46,802	54,450	52,157
Benefits, losses and expenses:
Policyholder benefits and losses incurred (including remeasurement losses of $342, $304 and $247 for the years ended December 31, 2023, 2022 and 2021, respectively)	24,755	22,176	23,785
Change in the fair value of market risk benefits, net	2	(958)	(447)
Interest credited to policyholder account balances	4,424	3,744	3,570
Amortization of deferred policy acquisition costs	4,808	4,557	4,524
General operating and other expenses	8,499	9,122	8,728
Interest expense	1,136	1,125	1,305
Gain (loss) on extinguishment of debt	(37)	303	389
Net (gain) loss on divestitures and other	(643)	82	(3,044)
Total benefits, losses and expenses	42,944	40,151	38,810
Income from continuing operations before income tax expense (benefit)	3,858	14,299	13,347
Income tax expense (benefit)	(20)	3,025	2,441
Income from continuing operations	3,878	11,274	10,906
Income (loss) from discontinued operations, net of income tax expense	0	(1)	0
Net income	3,878	11,273	10,906
Less:
Net income from continuing operations attributable to noncontrolling interests	235	1,046	539
Net income attributable to AIG	3,643	10,227	10,367
Less: Dividends on preferred stock	29	29	29
Net income (loss) attributable to AIG common shareholders	$ 3,614	$ 10,198	$ 10,338
Basic:
Income (loss) from continuing operations (in dollars per share)	$ 5.02	$ 13.10	$ 12.10
Income from discontinued operations (in dollars per share)	0	0	0
Net income (loss) attributable to AIG common shareholders (in dollars per share)	5.02	13.10	12.10
Diluted:
Income (loss) from continuing operations (in dollars per share)	4.98	12.94	11.95
Income from discontinued operations (in dollars per share)	0	0	0
Net income attributable to AIG common shareholders (in dollars per share)	$ 4.98	$ 12.94	$ 11.95
Weighted average shares outstanding:
Basic (in shares)	719,506,291	778,621,118	854,320,449
Diluted (in shares)	725,233,068	787,941,750	864,884,879
Current	$ 491	$ 517	$ (45)
Deferred	(511)	2,508	2,486
Excluding Fortitude Re Funds Withheld Assets
Revenues:
Total net investment income	13,048	10,824	12,641
Total net realized gains (losses)	(2,306)	69	1,871
Fortitude Re funds withheld assets
Revenues:
Total net investment income	1,544	943	1,971
Total net realized gains (losses)	(295)	(486)	1,003
Fortitude Re funds withheld embedded derivative
Revenues:
Total net realized gains (losses)	$ (2,007)	$ 7,481	$ (603)