Derivative Financial Instruments - Carrying Amount of Hedged Debt and Cumulative Adjustments (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||
| Carrying amount of hedged debt | $ 565 | $ 0 |
| Cumulative hedging adjustments, included in carrying amount | $ (28) | $ 0 |