Income Tax (Net Deferred Income Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred income tax assets:
Net unrealized investment losses	$ 1,397	$ 0
Net operating loss carryforwards	1,246	1,253
Investments, including derivatives	285	0
Tax credit carryforwards	183	150
Intangibles	43	45
Employee benefits	3	4
Other	28	5
Total deferred income tax assets	3,185	1,457
Less: Valuation allowance	18	18
Total net deferred income tax assets	3,167	1,439
Deferred income tax liabilities:
Policyholder liabilities and receivables	969	429
DAC	618	688
Net unrealized investment gains	0	1,039
Investments, including derivatives	0	264
Total deferred income tax liabilities	1,587	2,420
Deferred tax assets and liabilities [Abstract]
Deferred Tax Assets, Net, Total	$ 1,580
Deferred Tax Liabilities, Net, Total		$ (981)