Leases - Schedule of Lease Cost and Activity (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Finance leases: | ||||
| Amortization of finance lease assets | $ 23 | $ 24 | $ 71 | $ 70 |
| Interest obligations under finance leases | 2 | 2 | 6 | 7 |
| Total finance lease costs | 25 | 26 | 77 | 77 |
| Operating leases: | ||||
| Total operating lease costs | 19 | 15 | 55 | 49 |
| Cash payments related to lease liabilities included in operating cash flows: | ||||
| Interest payments on finance lease liabilities | 6 | 7 | ||
| Cash payments related to lease liabilities included in financing cash flows: | ||||
| Principal payments on finance lease liabilities | 57 | 69 | ||
| Non-Related Party | ||||
| Operating leases: | ||||
| Fixed lease costs | 18 | 15 | 52 | 47 |
| Cash payments related to lease liabilities included in operating cash flows: | ||||
| Operating lease liabilities | 79 | 74 | ||
| Related Party | ||||
| Operating leases: | ||||
| Fixed lease costs | 1 | 0 | 3 | 2 |
| Cash payments related to lease liabilities included in operating cash flows: | ||||
| Operating lease liabilities | $ 2 | $ 2 | ||