Debt (Details) - USD ($) $ in Millions	Sep. 12, 2024	Feb. 25, 2022
Senior Notes Due 2054 | Hybrid junior subordinated notes
Debt Instrument [Line Items]
Amount of debt issued	$ 750
Interest rate (as a percent)	6.375%
Interest rate and payment reset period (in years)	5 years
Debt instrument term (in years)	5 years
Basis spread on variable rate (as a percent)	2.646%
CoreBridge 3-Year DDTL Facility | Senior unsecured notes | Line of Credit
Debt Instrument [Line Items]
Repayments of loan	$ 250
CoreBridge 3-Year DDTL Facility | Senior unsecured notes | Line of Credit | Parent Company
Debt Instrument [Line Items]
Debt instrument term (in years)		3 years