Income Taxes - Operating Loss Carryforwards (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Domestic Tax Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 1,587	$ 1,499
Capital loss carryforwards	593	557
Interest carryforwards	112	85
U.S. Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	1	2
Interest carryforwards	4,117	3,743
Federal foreign tax credit carryforwards	25	29
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	1,348	1,822
Interest carryforwards	2,427	2,303
Other
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	453	339
Capital loss carryforwards	10	9
Interest carryforwards	$ 176	$ 126