Derivatives - Cumulative Basis Adjustment for Fair Value Hedges (Details) - USD ($) $ in Millions |
Sep. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Location and Fair Value Amount of Derivative Instruments | ||
| Hedged Liability, Statement of Financial Position [Extensible Enumeration] | Long-term debt | Long-term debt |
| Fair value hedges | ||
| Location and Fair Value Amount of Derivative Instruments | ||
| Carrying Value of the Hedged Liabilities | $ 937 | $ 918 |
| Fair value hedges | Long-term debt | ||
| Location and Fair Value Amount of Derivative Instruments | ||
| Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Value of the Hedged Liabilities | $ (65) | $ (84) |