Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Sep. 19, 2022
Operating Loss Carryforwards [Line Items]
Effective tax rates on income from continuing operations (as a percent)	22.00%	62.30%
U.S. federal income tax at statutory rate (as a percent)	21.00%	21.00%
Valuation allowance related to certain tax attribute carryforward	$ 300
Gross unrecognized tax benefits, beginning of year	1,400		$ 1,400
Unrecognized tax benefits, if recognized would favorably affect the effective tax rate	1,400		1,400
Unrecognized tax benefits, interest and penalties accrued	52		$ 52
Unrecognized tax benefits, interest net of the federal (benefit) expense and penalties	0	$ 7
Foreign
Operating Loss Carryforwards [Line Items]
Deferred tax asset, increase (decrease) in valuation allowance recognized	(3)
Corebridge Financial Inc
Operating Loss Carryforwards [Line Items]
Deferred tax asset, increase (decrease) in valuation allowance recognized	15
Valuation allowance	177
U.S. And Non-U.S. Life Insurance Companies, Available-for-Sale Portfolio
Operating Loss Carryforwards [Line Items]
Valuation allowance	1,800
U.S.. Life Insurance Companies, Available-for-Sale Portfolio
Operating Loss Carryforwards [Line Items]
Valuation allowance	1,200
Non U.S.. Life Insurance Companies, Available-for-Sale Portfolio
Operating Loss Carryforwards [Line Items]
Deferred tax asset, increase (decrease) in valuation allowance recognized	11
Valuation allowance	561
U.S.. Life Insurance Companies
Operating Loss Carryforwards [Line Items]
Deferred tax asset, increase (decrease) in valuation allowance recognized	$ 194
Corebridge Financial Inc
Operating Loss Carryforwards [Line Items]
Ownership (as a percent)	52.70%
Corebridge Financial Inc | Maximum
Operating Loss Carryforwards [Line Items]
Ownership (as a percent)				80.00%