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Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Jun. 30, 2025
Supplemental Cash Flow Elements [Abstract] |
Schedule of Noncash Investing and Financing Activities | Noncash investing and financing activities are as follows:
|  | Six Months Ended |
|  | June 30, |
|  | 2025 |  |  | 2024 |
|  | (Dollars in Millions) |
Accrued liabilities for purchases of property, plant and equipment |  | $ | 61 |  |  | $ | 49 |
Right-of-use assets obtained in exchange for new operating lease liabilities |  | $ | 42 |  |  | $ | 43 |
Right-of-use assets obtained in exchange for new finance lease liabilities |  | $ | 16 |  |  | $ | 9 |
Remeasurement of finance lease right-of-use assets |  | $ | 50 |  |  | $ | 25 |
Remeasurement of operating lease right-of-use assets |  | $ | (1 | ) |  | $ | 3 |
Accrued benefits on life insurance contracts |  | $ | 5 |  |  | $ | — |
Supplemental Disclosures of Cash Flow Information | Supplemental disclosures of cash flow information are as follows:
|  | Six Months Ended |
|  | June 30, |
|  | 2025 |  |  | 2024 |
|  | (Dollars in Millions) |
Cash paid for interest, net of capitalized amount |  | $ | 115 |  |  | $ | 76 |
Cash paid for income taxes, net of refunds |  | $ | 32 |  |  | $ | 374 |

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- Definition Tabular disclosure of noncash investing and financing activities, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-4 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-5 + Details
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