Income Taxes - Deferred Tax Asset of U.S. Consolidated Federal Income Tax Group (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Income Tax Disclosure [Abstract] | |||
| Unrecognized tax benefits, if recognized would favorably affect the effective tax rate | $ 1,400 | $ 1,400 | $ 1,400 |
| Unrecognized tax benefits, interest and penalties accrued | 62 | 53 | 52 |
| Accrued expense (benefit) for the payment of interest and penalties | $ 13 | $ 1 | $ (11) |