Variable Interest Entities - Schedule of Investments, Proportional Amortization Method (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||||
| Proportional amortization | $ 59,000,000 | $ 52,000,000 | $ 106,000,000 | $ 100,000,000 |
| Tax credits and other benefits | (72,000,000) | (65,000,000) | (128,000,000) | (122,000,000) |
| Changes in carrying amounts of equity method investments | 2,000,000 | 2,000,000 | 4,000,000 | 4,000,000 |
| Impairment losses | $ 0 | $ 0 | $ 0 | $ 0 |