Debt - Affiliated Notes (Details)			1 Months Ended	12 Months Ended
	Jun. 23, 2022 GIP (£)	Oct. 01, 2021 USD ($)	Feb. 28, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Nov. 30, 2021 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2013 USD ($)
Debt Instrument [Line Items]
Short-term debt					$ 250,000,000	$ 1,500,000,000
Parent Company
Debt Instrument [Line Items]
Short-term debt					$ 250,000,000	$ 1,500,000,000
Affiliated Senior Promissory Note Maturing 2022 | Hybrid junior subordinated notes
Debt Instrument [Line Items]
Short-term debt							$ 8,300,000,000
Affiliated Senior Promissory Note Maturing 2022 | Hybrid junior subordinated notes | Parent Company
Debt Instrument [Line Items]
Basis points							1.00%
Lexington Note | CRBGLH notes
Debt Instrument [Line Items]
Amount of debt issued								$ 250,000,000
Interest expense on debt				$ 400,000
Repayments of long term debt			$ 254,000,000
AIG Life Note
Debt Instrument [Line Items]
Proceeds from issuance of note | £	£ 10,000,000
AIG Europe SA Note | CRBGLH notes
Debt Instrument [Line Items]
Amount of debt issued									$ 17,000,000
Interest expense on debt				$ 300,000
Repayments of long term debt		$ 9,000,000