Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Feb. 08, 2023
Other Commitments [Line Items]
Investment period (in years)	5 years
Advances from FHLB	$ 11,900		$ 6,500
Letters of Credit Outstanding, Amount	1,308
Interest sensitive contract liabilities	228,389		204,670	$ 184,359
Loss Contingency, Undiscounted Amount of Insurance-related Assessment Liability	0
Related Party
Other Commitments [Line Items]
Investment commitment		$ 2,500			$ 3,300
Interest sensitive contract liabilities	7,542		8,599
Other Commitment, to be Paid, Year Three					400
Other Commitment, to be Paid, Year Five					$ 2,900
Guarantor Obligations, Current Carrying Value	0
Investments
Other Commitments [Line Items]
Investment commitment	25,100
Secured Funding Agreements
Other Commitments [Line Items]
Interest sensitive contract liabilities	8,500		6,000
Athene Global Funding | Funding agreements
Other Commitments [Line Items]
Maximum borrowing capacity	13,500
Interest sensitive contract liabilities	$ 21,000		$ 19,900