Federal Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Assets
Insurance liabilities and reinsurance-related balances	$ 1,900	$ 410
Reinsurance-related embedded derivative liabilities	116	0
Compensation and benefit plans	184	172
Intangibles	18	21
Net unrealized loss on fixed maturity AFS securities	1,826	2,265
Net unrealized loss on trading securities	33	70
Investment activity	0	273
Tax credits	131	101
Net operating losses	87	278
Capital losses	93	0
Deferred gain on reinsurance	0	57
Total deferred tax assets	4,388	3,647
Deferred Tax Liabilities
DAC and VOBA	1,744	1,742
Investment activity	617	0
Deferred loss on reinsurance	465	0
Reinsurance-related embedded derivative assets	0	87
MRB-related activity	429	134
Other	204	371
Total deferred tax liabilities	3,459	2,334
Net deferred tax asset (liability)	$ 929	$ 1,313