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Fair Value Disclosure (Tables) | 6 Months Ended
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Jun. 30, 2024
Fair Value Disclosures [Abstract] |
Schedule of Carrying Amounts and Estimated Fair Values | The following table presents the carrying amounts and estimated fair values of our financial liabilities as of June 30, 2024 and December 31, 2023, as well as the input level used to determine the fair values indicated below:
|  |  | June 30, 2024 |  | December 31, 2023
| Input Level |  | Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
|  |  | (Dollars in millions)
Liabilities—Long-term debt (excluding finance lease and other obligations) | 2 |  | $ | 1,937 |  |  | 956 |  |  | 2,153 |  |  | 1,162 |

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 + Details
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