Held-For-Sale Classification and Discontinued Operations Presentation - Schedule of Assets and Liabilities Held for Sale and Discontinued Operations (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Assets and Liabilities Held for Sale
Investments:
Bonds available for sale, at fair value, net of allowance for credit losses	$ 0	$ 14
Other bond securities, at fair value	0	0
Equity securities, at fair value	0	0
Mortgage and other loans receivable, net of allowance for credit losses	0	0
Other invested assets	0	0
Short-term investments	11	1
Total investments	11	15
Cash	85	0
Accrued investment income	0	0
Premiums and other receivables, net of allowance for credit losses and disputes	32	9
Deferred income taxes	(9)	0
Deferred policy acquisition costs	0	0
Market risk benefit assets, at fair value	0	0
Other assets, net of allowance for credit losses	18	3
Separate account assets, at fair value	0	0
Total assets held for sale/assets of discontinued operations	137	30
Liabilities:
Liability for unpaid losses and loss adjustment expenses, including allowance for credit losses	0	19
Unearned premiums	0	7
Future policy benefits	0	0
Policyholder contract deposits	0	0
Market risk benefit liabilities, at fair value	0	0
Other policyholder funds	0	0
Fortitude Re funds withheld payable	0	0
Other liabilities	78	2
Short-term and long-term debt	0	0
Debt of consolidated investment entities	0	0
Separate account liabilities	0	0
Total liabilities held for sale/liabilities of discontinued operations	78	28
Assets and Liabilities Held for Sale | Fortitude RE
Investments:
Reinsurance assets, net of allowance for credit losses and disputes	0	0
Assets and Liabilities Held for Sale | Excluding Fortitude
Investments:
Reinsurance assets, net of allowance for credit losses and disputes		3
Discontinued Operations
Investments:
Total assets held for sale/assets of discontinued operations	0	378,748
Liabilities:
Total liabilities held for sale/liabilities of discontinued operations	$ 0	366,089
Corebridge Financial Inc | Discontinued Operations
Investments:
Bonds available for sale, at fair value, net of allowance for credit losses		166,657
Other bond securities, at fair value		4,579
Equity securities, at fair value		63
Mortgage and other loans receivable, net of allowance for credit losses		46,732
Other invested assets		9,916
Short-term investments		4,346
Total investments		232,293
Cash		618
Accrued investment income		2,011
Premiums and other receivables, net of allowance for credit losses and disputes		709
Deferred income taxes		8,307
Deferred policy acquisition costs		10,782
Market risk benefit assets, at fair value		912
Other assets, net of allowance for credit losses		2,820
Separate account assets, at fair value		91,005
Total assets held for sale/assets of discontinued operations		378,748
Liabilities:
Liability for unpaid losses and loss adjustment expenses, including allowance for credit losses		0
Unearned premiums		65
Future policy benefits		57,946
Policyholder contract deposits		161,979
Market risk benefit liabilities, at fair value		5,705
Other policyholder funds		2,862
Fortitude Re funds withheld payable		25,957
Other liabilities		8,790
Short-term and long-term debt		9,420
Debt of consolidated investment entities		2,360
Separate account liabilities		91,005
Total liabilities held for sale/liabilities of discontinued operations		366,089
Goodwill		116
Intangible assets		3
Corebridge Financial Inc | Discontinued Operations | Fortitude RE
Investments:
Reinsurance assets, net of allowance for credit losses and disputes		26,772
Corebridge Financial Inc | Discontinued Operations | Excluding Fortitude
Investments:
Reinsurance assets, net of allowance for credit losses and disputes		$ 2,519