Condensed Consolidated Statements of Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues:
Premiums	$ 7,504	$ 6,677	$ 21,925	$ 21,527
Policy fees	714	648	2,269	2,152
Net investment income	3,715	3,800	11,047	9,674
Net realized gains (losses)	660	(1,122)	1,984	65
Other income	242	218	745	642
Total revenues	12,835	10,221	37,970	34,060
Benefits, losses and expenses:
Policyholder benefits and losses incurred	5,959	5,872	17,182	18,718
Interest credited to policyholder account balances	923	882	2,663	2,757
Amortization of deferred policy acquisition costs	1,260	707	3,479	3,323
General operating and other expenses	2,240	1,991	6,546	6,231
Interest expense	328	379	1,008	1,099
(Gain) loss on extinguishment of debt	51	(2)	149	15
Net (gain) loss on divestitures	(102)	24	(108)	8,652
Total benefits, losses and expenses	10,659	9,853	30,919	40,795
Income (loss) from continuing operations before income tax expense (benefit)	2,176	368	7,051	(6,735)
Income tax expense (benefit)	439	74	1,234	(918)
Income (loss) from continuing operations	1,737	294	5,817	(5,817)
Income from discontinued operations, net of income taxes	0	5	0	4
Net income (loss)	1,737	299	5,817	(5,813)
Less:
Net income from continuing operations attributable to noncontrolling interests	70	11	175	78
Net income (loss) attributable to AIG	1,667	288	5,642	(5,891)
Less: Dividends on preferred stock	7	7	22	22
Net income (loss) attributable to AIG common shareholders	$ 1,660	$ 281	$ 5,620	$ (5,913)
Basic:
Income (loss) from continuing operations	$ 1.95	$ 0.31	$ 6.53	$ (6.80)
Income (loss) from discontinued operations	0	0.01	0	0
Net income (loss) attributable to AIG common shareholders	1.95	0.32	6.53	(6.80)
Diluted:
Income (loss) from continuing operations	1.92	0.31	6.45	(6.80)
Income from discontinued operations	0	0.01	0	0
Net income (loss) attributable to AIG common shareholders	$ 1.92	$ 0.32	$ 6.45	$ (6.80)
Weighted average shares outstanding:
Basic	852,765,263	867,713,308	861,211,983	869,627,926
Diluted	864,019,494	873,130,950	871,002,018	869,627,926
Excluding Fortitude Re funds withheld assets
Revenues:
Net investment income	$ 3,220	$ 3,342	$ 9,559	$ 9,100
Net realized gains (losses)	679	(498)	1,331	1,430
Fortitude Re funds withheld assets
Revenues:
Net investment income	495	458	1,488	574
Net realized gains (losses)	190	32	536	128
Benefits, losses and expenses:
Policyholder benefits and losses incurred	21
Fortitude Re funds withheld embedded derivative
Revenues:
Net realized gains (losses)	$ (209)	$ (656)	$ 117	$ (1,493)