Consolidated Balance Sheets - USD ($)		Dec. 31, 2021	Dec. 31, 2020
Fixed maturity securities:
Bonds available for sale, at fair value, net of allowance for credit losses of $98 in 2021 and $186 in 2020 (amortized cost: 2021 - $259,210; 2020 - $244,337)	[1]	$ 277,202,000,000	$ 271,496,000,000
Other bond securities, at fair value (See Note 5)	[1]	6,278,000,000	5,291,000,000
Equity Securities, at fair value (See Note 5)	[1]	739,000,000	1,056,000,000
Mortgage and other loans receivable, net of allowance for credit losses of $629 in 2021 and $814 in 2020	[1]	46,048,000,000	45,562,000,000
Other invested assets (portion measured at fair value: 2021 - $10,504; 2020 - $8,422)	[1]	15,668,000,000	19,060,000,000
Short-term investments, including restricted cash of $197 in 2021 and $180 in 2020 (portion measured at fair value: 2021 - $4,426; 2020 - $5,968)	[1]	13,357,000,000	18,203,000,000
Total investments		359,292,000,000	360,668,000,000
Cash	[1]	2,198,000,000	2,827,000,000
Accrued investment income	[1]	2,239,000,000	2,271,000,000
Premiums and other receivables, net of allowance for credit losses and disputes of $185 in 2021 and $205 in 2020		12,409,000,000	11,333,000,000
Deferred income taxes		11,714,000,000	12,624,000,000
Deferred policy acquisition costs		10,514,000,000	9,805,000,000
Other assets, net of allowance for credit losses of $49 in 2021 and $49 in 2020, including restricted cash of $32 in 2021 and $223 in 2020 (portion measured at fair value: 2021 - $957; 2020 - $887)	[1]	14,351,000,000	13,122,000,000
Separate account assets, at fair value		109,111,000,000	100,290,000,000
Total assets		596,112,000,000	586,481,000,000
Liabilities:
Liability for unpaid losses and loss adjustment expenses, including allowance for credit losses of $14 in 2021 and $14 in 2020		79,026,000,000	77,720,000,000
Unearned premiums		19,313,000,000	18,660,000,000
Future policy benefits for life and accident and health insurance contracts		59,950,000,000	56,878,000,000
Policyholder contract deposits (portion measured at fair value: 2021 - $9,736; 2020 - $9,798)		156,686,000,000	154,470,000,000
Other policyholder funds		3,476,000,000	3,548,000,000
Fortitude Re funds withheld payable (portion measured at fair value: 2021 - $5,922; 2020 - $6,042)		40,771,000,000	43,060,000,000
Other liabilities (portion measured at fair value: 2021 - $586; 2020 - $570)	[1]	28,704,000,000	27,122,000,000
Long-term debt	[1]	30,163,000,000	37,534,000,000
Separate account liabilities		109,111,000,000	100,290,000,000
Total liabilities		527,200,000,000	519,282,000,000
Contingencies, commitments and guarantees (see Note 15)
AIG shareholders' equity:
Series A non-cumulative preferred stock and additional paid in capital, $5.00 par value; 100,000,000 shares authorized; shares issued: 2021 - 20,000 and 2020 - 20,000; liquidation preference $500		485,000,000	485,000,000
Common stock, $2.50 par value; 5,000,000,000 shares authorized; shares issued: 2021 - 1,906,671,492 and 2020 - 1,906,671,492		4,766,000,000	4,766,000,000
Treasury stock, at cost; 2021 - 1,087,984,129 shares; 2020 - 1,045,113,443 shares of common stock		(51,618,000,000)	(49,322,000,000)
Additional paid-in capital		81,851,000,000	81,418,000,000
Retained earnings		23,785,000,000	15,504,000,000
Accumulated other comprehensive income		6,687,000,000	13,511,000,000
Total AIG shareholders' equity		65,956,000,000	66,362,000,000
Non-redeemable noncontrolling interests		2,956,000,000	837,000,000
Total equity		68,912,000,000	67,199,000,000
Total liabilities and equity		596,112,000,000	586,481,000,000
Excluding Fortitude
Fixed maturity securities:
Reinsurance assets, net of allowance for credit losses and disputes		40,919,000,000	38,963,000,000
Fortitude
Fixed maturity securities:
Reinsurance assets, net of allowance for credit losses and disputes		33,365,000,000	34,578,000,000
American International Group, Inc.
Liabilities:
Long-term debt		23,741,000,000	28,103,000,000
Debt of consolidated investments
Liabilities:
Long-term debt	[1]	$ 6,422,000,000	$ 9,431,000,000

[1] See Note 9 for details of balances associated with variable interest entities.