Schedule V (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans	$ 50,321	$ 46,677
Mortgage and other loans receivable, allowance for credit losses	38,351	629	$ 814	$ 438
AIG Financial Products
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans	37,600
Mortgage and other loans receivable, allowance for credit losses	37,600
Allowance for mortgage and other loans receivable(b)
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance, Beginning of year	629	814	438
Initial Allowance Upon CECL Adoption	0	0	318
Charged to Costs and Expenses	104	(164)	75
Charge Offs	(17)	(2)	(17)
Divestitures	0	(19)	0
Other Changes	0	0	0
Balance, End of year	716	629	814
Allowance for premiums and insurances balances receivable
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance, Beginning of year	185	205	178
Initial Allowance Upon CECL Adoption	0	0	34
Charged to Costs and Expenses	0	(15)	6
Charge Offs	(15)	(2)	(12)
Divestitures	0	0	0
Other Changes	(1)	(3)	(1)
Balance, End of year	169	185	205
Allowance for reinsurance assets
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance, Beginning of year	333	326	151
Initial Allowance Upon CECL Adoption	0	0	172
Charged to Costs and Expenses	(39)	24	12
Charge Offs	(5)	(17)	(9)
Divestitures	0	0	0
Other Changes	6	0	0
Balance, End of year	295	333	326
Federal and foreign valuation allowance for deferred tax assets
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance, Beginning of year	1,987	1,330	1,425
Initial Allowance Upon CECL Adoption	0	0	0
Charged to Costs and Expenses	(25)	718	(65)
Charge Offs	0	0	0
Divestitures	0	0	0
Other Changes	2,284	(61)	(30)
Balance, End of year	$ 4,246	$ 1,987	$ 1,330