Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Fixed maturity securities:
Bonds available for sale, at fair value, net of allowance for credit losses of $43 in 2025 and $38 in 2024 (amortized cost: 2025 - $72,008; 2024 - $66,195)	$ 71,184	$ 64,006
Other bond securities, at fair value	743	745
Equity securities, at fair value	829	704
Mortgage and other loans receivable, net of allowance for credit losses of $37,740 in 2025 and $37,800 in 2024	3,314	3,868
Other invested assets (portion measured at fair value: 2025 - $6,469; 2024 - $7,384)	8,361	9,828
Short-term investments, including restricted cash of $3 in 2025 and $55 in 2024 (portion measured at fair value: 2025 - $4,860; 2024 - $9,789)	9,417	14,462
Total investments	93,848	93,613
Cash	1,589	1,302
Accrued investment income	670	599
Premiums and other receivables, net of allowance for credit losses and disputes of $128 in 2025 and $127 in 2024	11,264	10,463
Deferred income tax assets	4,567	4,956
Deferred policy acquisition costs	2,135	2,065
Goodwill	3,439	3,373
Deposit accounting assets, net of allowance for credit losses of $49 in 2025 and $49 in 2024	2,531	2,171
Other assets, including restricted cash of $2 in 2025 and $15 in 2024 (portion measured at fair value: 2025 - $131; 2024 - $179)	4,602	4,735
Total assets	163,415	161,322
Liabilities:
Liability for unpaid losses and loss adjustment expenses, including allowance for credit losses of $14 in 2025 and $14 in 2024	69,882	69,168
Unearned premiums	19,563	17,232
Future policy benefits	1,420	1,317
Other policyholder funds	381	418
Fortitude Re funds withheld payable (portion measured at fair value: 2025 - $(103); 2024 - $(128))	3,094	3,207
Premiums and other related payables	6,209	6,052
Deposit accounting liabilities	3,332	3,005
Commissions and premium taxes payable	1,490	1,522
Current and deferred income tax liabilities	572	426
Other liabilities (portion measured at fair value: 2025 - $121; 2024 - $251)	7,112	7,503
Total liabilities	122,298	118,772
Contingencies, commitments and guarantees (See Note 13)
AIG shareholders’ equity:
Common stock, $2.50 par value; 5,000,000,000 shares authorized; shares issued: 2025 - 1,906,671,492 and 2024 - 1,906,671,492	4,766	4,766
Treasury stock, at cost; 2025 - 1,362,180,100 shares; 2024 - 1,300,512,040 shares of common stock	(70,667)	(65,573)
Additional paid-in capital	75,334	75,348
Retained earnings	36,698	35,079
Accumulated other comprehensive loss	(5,046)	(7,099)
Total AIG shareholders’ equity	41,085	42,521
Non-redeemable noncontrolling interests	32	29
Total equity	41,117	42,550
Total liabilities and equity	163,415	161,322
Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Long-term debt	9,087	8,764
Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Long-term debt	156	158
Fortitude RE
Fixed maturity securities:
Reinsurance assets, net of allowance for credit losses and disputes	3,170	3,427
Excluding Fortitude
Fixed maturity securities:
Reinsurance assets, net of allowance for credit losses and disputes	$ 35,600	$ 34,618