Separate Account Assets and Liabilities - Reconciliation of the Separate Account Balance in the Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Separate Account, Liability [Line Items]
Separate account assets	$ 212,719	$ 195,906	[1]
Variable Annuities
Separate Account, Liability [Line Items]
Separate account assets	212,328	195,550
Other
Separate Account, Liability [Line Items]
Separate account assets	$ 391	$ 356

[1] (1) Recast for the adoption of ASU 2018-12. See Notes 1 and 2 to the Condensed Consolidated Financial Statements.