Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax rate	21.00%	21.00%	21.00%
Income tax expense (benefit) at federal statutory rate	$ 145	$ 135	$ 84
Dividends received deduction	(35)	(47)	(36)
Other	9	0	(1)
Income tax expense (benefit)	$ 97	$ 57	$ 13
Tax Jurisdiction of Domicile [Extensible Enumeration]	UNITED STATES	UNITED STATES	UNITED STATES
Effective tax rate	14.00%	8.90%	3.30%
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 691	$ 643	$ 400
Effective Income Tax Rate Reconciliation, Capital Loss Carryback, Amount	0	(13)	(23)
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount	$ (22)	$ (18)	$ (11)
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent	(3.20%)	(2.80%)	(2.80%)
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent	(5.10%)	(7.30%)	(9.00%)
Effective Income Tax Rate Reconciliation, Capital Loss Carryback, Percent	0.00%	(2.00%)	(5.80%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	1.30%	0.00%	(0.30%)