Leases - Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Leases [Abstract] | ||
| Right-of-use assets—operating | $ 707 | $ 737 |
| Right-of-use assets—finance, net | 232 | 239 |
| Total right-of-use assets | $ 939 | $ 976 |
| Operating lease, liability, current, statement of financial position [Extensible Enumeration] | Accrued and other liabilities | Accrued and other liabilities |
| Current operating lease liabilities | $ 50 | $ 62 |
| Finance lease, liability, current, statement of financial position [Extensible Enumeration] | Accrued and other liabilities | Accrued and other liabilities |
| Current finance lease liabilities | $ 8 | $ 9 |
| Noncurrent operating lease liabilities | $ 690 | $ 696 |
| Finance lease, liability, noncurrent, statement of financial position [Extensible Enumeration] | Other noncurrent liabilities | Other noncurrent liabilities |
| Noncurrent finance lease liabilities | $ 246 | $ 249 |
| Total lease liabilities | $ 994 | $ 1,016 |