Deferred Policy Acquisition Costs - Rollforward of DSI (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Jan. 01, 2021	Dec. 31, 2020
Summary of Significant Accounting Policies [Line Items]
Aggregate carrying amount in the Condensed Consolidated Balance Sheets	$ 12,702		$ 12,857	$ 12,955
Other assets, excluding DSI	12,300	$ 13,000			$ 12,800
Deferred Sale Inducements
Summary of Significant Accounting Policies [Line Items]
Balance, beginning of year	558	619
Capitalization	5	4
Amortization expense	(34)	(33)
Balance, end of period	529	590
Deferred Sale Inducements | Individual Retirement
Summary of Significant Accounting Policies [Line Items]
Balance, beginning of year	381	428
Capitalization	4	4
Amortization expense	(27)	(26)
Balance, end of period	358	406
Deferred Sale Inducements | Group Retirement
Summary of Significant Accounting Policies [Line Items]
Balance, beginning of year	177	191
Capitalization	1	0
Amortization expense	(7)	(7)
Balance, end of period	$ 171	$ 184