Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax rate	21.00%	21.00%	21.00%
Income tax expense (benefit) at federal statutory rate	$ 135	$ 84	$ 59
Dividends received deduction	(47)	(36)	(42)
Tax credit	(18)	(11)	(67)
Other	0	(1)	(1)
Income tax expense (benefit)	$ 57	$ 13	$ (51)
Effective tax rate	8.90%	3.20%	(18.10%)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 643	$ 400	$ 282
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount			$ 0
Effective Income Tax Rate Reconciliation, Capital Loss Carryback, Amount	$ (13)	$ (23)