Federal Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Deferred Tax Assets
Net unrealized loss on fixed maturity AFS securities	$ 1,486	$ 1,246
Insurance liabilities and reinsurance-related balances	318	322
Compensation and benefit plans	197	175
Intangibles	17	18
Net unrealized loss on trading securities	30	33
Investment activity	0	91
Tax credits	141	103
Net operating losses	359	87
Capital losses	56	93
Deferred gain on reinsurance	375	400
Total deferred tax assets	2,979	2,568
Deferred Tax Liabilities
DAC and VOBA	1,774	1,906
Reinsurance-related embedded derivative assets	153	104
MRB-related activity	234	286
Investment activity	808	0
Other	227	223
Total deferred tax liabilities	3,196	2,519
Net deferred tax asset (liability)	$ (217)
Net deferred tax asset (liability)		$ 49