Income Taxes (Reconciliation Of Beginning And Ending Amount Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
| Balance at beginning of year | $ 12 | $ 11 | $ 8 |
| Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 46 | 0 | 3 |
| Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions | 1 | 1 | 0 |
| Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions | (3) | 0 | 0 |
| Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities | (1) | 0 | 0 |
| Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations | (8) | 0 | 0 |
| Balance at end of year | $ 47 | $ 12 | $ 11 |