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Long-Term Debt (Tables) | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Schedule of Long-Term Debt | The following table reflects our consolidated long-term debt as of the dates indicated below, including unamortized discounts and premiums and unamortized debt issuance costs:
| Interest Rates (1) |  | Maturities (1) |  | September 30, 2025 |  | December 31, 2024
|  |  |  |  | (Dollars in millions)
Senior notes | 6.50% - 7.75% |  | 2030-2057 |  | $ | 1,736 |  |  | 1,973 |
Finance leases | Various |  | Various |  | 3 |  |  | 3 |
Unamortized premiums, net |  |  |  |  | — |  |  | 1 |
Unamortized debt issuance costs |  |  |  |  | (50) |  |  | (50) |
Total long-term debt |  |  |  |  | 1,689 |  |  | 1,927 |
Less current maturities |  |  |  |  | (1) |  |  | (239) |
Long-term debt, excluding current maturities |  |  |  |  | $ | 1,688 |  |  | 1,688 |
_______________________________________________________________________________ (1)As of September 30, 2025.
Schedule of Maturities of Long-Term Debt | Set forth below is the aggregate principal amount of our long-term debt as of September 30, 2025 (excluding unamortized premiums, net and unamortized debt issuance costs) maturing during the following years:
| (Dollars in millions)
2025 (remaining three months) | $ | — |
2026 | 1 |
2027 | 1 |
2028 | — |
2029 | — |
2030 and thereafter | 1,737 |
Total long-term debt | $ | 1,739 |

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