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RESERVE ROLLFORWARDS | 12 Months Ended
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Dec. 31, 2024
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
RESERVE ROLLFORWARDS | RESERVE ROLLFORWARDS Valuation and Qualifying Accounts
(Dollars in millions) |  |  | Additions |  |  |  |
| Balance at January 1, 2024 |  | Charges (Credits) to Cost and Expense |  | Other Accounts |  | Deductions |  | Balance at December 31, 2024
Reserve for: |  |  |  |  |  |  |  |  |
Credit losses | $ | 17 |  |  | $ | (2) |  |  | $ | — |  |  | $ | — |  |  | $ | 15 |
LIFO inventory | 421 |  |  | (46) |  |  | — |  |  | — |  |  | 375 |
Non-environmental asset retirement obligations | 51 |  |  | 2 |  |  | — |  |  | — |  |  | 53 |
Environmental contingencies | 284 |  |  | 13 |  |  | — |  |  | 13 |  |  | 284 |
Deferred tax valuation allowance | 183 |  |  | (8) |  |  | 511 |  |  | — |  |  | 686 |
| $ | 956 |  |  | $ | (41) |  |  | $ | 511 |  |  | $ | 13 |  |  | $ | 1,413 |
(Dollars in millions) |  |  | Additions |  |  |  |
| Balance at January 1, 2023 |  | Charges (Credits) to Cost and Expense |  | Other Accounts |  | Deductions |  | Balance at December 31, 2023
Reserve for: |  |  |  |  |  |  |  |  |
Credit losses | $ | 15 |  |  | $ | 2 |  |  | $ | — |  |  | $ | — |  |  | $ | 17 |
LIFO inventory | 493 |  |  | (72) |  |  | — |  |  | — |  |  | 421 |
Non-environmental asset retirement obligations | 51 |  |  | 1 |  |  | — |  |  | 1 |  |  | 51 |
Environmental contingencies | 274 |  |  | 26 |  |  | — |  |  | 16 |  |  | 284 |
Deferred tax valuation allowance | 258 |  |  | (76) |  |  | 1 |  |  | — |  |  | 183 |
| $ | 1,091 |  |  | $ | (119) |  |  | $ | 1 |  |  | $ | 17 |  |  | $ | 956 |
(Dollars in millions) |  |  | Additions |  |  |  |
| Balance at January 1, 2022 |  | Charges (Credits) to Cost and Expense |  | Other Accounts |  | Deductions |  | Balance at December 31, 2022
Reserve for: |  |  |  |  |  |  |  |  |
Credit losses | $ | 17 |  |  | $ | (2) |  |  | $ | — |  |  | $ | — |  |  | $ | 15 |
LIFO inventory | 365 |  |  | 128 |  |  | — |  |  | — |  |  | 493 |
Non-environmental asset retirement obligations | 51 |  |  | 2 |  |  | (1) |  |  | 1 |  |  | 51 |
Environmental contingencies | 281 |  |  | 7 |  |  | — |  |  | 14 |  |  | 274 |
Deferred tax valuation allowance | 339 |  |  | (79) |  |  | (2) |  |  | — |  |  | 258 |
| $ | 1,053 |  |  | $ | 56 |  |  | $ | (3) |  |  | $ | 15 |  |  | $ | 1,091 |
See Note 1, "Significant Accounting Policies", Note 3, "Inventories", Note 8, "Income Taxes", and Note 13, "Environmental Matters and Asset Retirement Obligations", for additional information.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
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- References No definition available. + Details
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