Schedule of Tangible Long-Lived Assets by Geographic Area (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Long-Lived Assets | ||
| Long-Lived Assets | $ 2,679 | $ 2,784 |
| UNITED STATES | ||
| Long-Lived Assets | ||
| Long-Lived Assets | 1,302 | 1,313 |
| GERMANY | ||
| Long-Lived Assets | ||
| Long-Lived Assets | 338 | 369 |
| UNITED KINGDOM | ||
| Long-Lived Assets | ||
| Long-Lived Assets | 292 | 321 |
| Other countries | ||
| Long-Lived Assets | ||
| Long-Lived Assets | $ 747 | $ 781 |