Income Tax Expense (Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income tax expense at United States statutory rate		$ 124	$ 220	$ 90
Effect of cross-border tax laws - subpart F income inclusion	[1]	4	33	9
Income tax expense		$ 62	$ 175	$ 36
Effective Income Tax Rate Reconciliation, Percent		10.60%	16.62%	8.41%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent		0.56%	0.48%	0.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent		(0.93%)	0.00%	0.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	[1]	0.66%	3.11%	2.11%
Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Percent		(0.68%)	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount		$ (4)	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Percent		1.06%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Amount		$ 6	$ 0	$ 0
Changes in unrecognized tax benefits - state apportionment positions		$ (10)	$ 1	$ 1
Changes in unrecognized tax benefits - state apportionment positions, percent		(1.67%)	0.07%	0.15%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent		2.64%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount		$ 15	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Tax Credit, Percent		(0.64%)	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Amount		$ (4)	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount		(5)	0	0
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount		(3)	(5)	0
Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount		$ (67)	$ (84)	$ (64)
Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Percent		(11.40%)	(8.04%)	(14.85%)

[1] State taxes that made up the majority (greater than 50 percent) of the tax effect in this category were Pennsylvania in 2025, New Jersey, Pennsylvania and New York in 2024, and Pennsylvania, Hawaii and New Jersey in 2023.