Consolidated Statements of Equity (Parenthetical) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Statement of Stockholders' Equity [Abstract] | ||||
| Changes in net unrealized gains (losses) on available-for-sale securities, taxes | $ 3 | $ 18 | $ 16 | $ 10 |
| Reclassification adjustment for (gains) losses on available-for-sale securities included in net income, taxes | 0 | 1 | 0 | 1 |
| Other, taxes | $ 1 | $ 0 | $ 3 | $ 1 |