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RESERVE ROLLFORWARDS (Tables) | 12 Months Ended
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Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule of Valuation and Qualifying Accounts | Valuation and Qualifying Accounts
(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 |
(Dollars in millions) |  |  | Additions |  |  |  |
| Balance at January 1, 2021 |  | Charges (Credits) to Cost and Expense |  | Other Accounts (1) |  | Deductions (2) |  | Balance at December 31, 2021
Reserve for: |  |  |  |  |  |  |  |  |
Credit losses | $ | 14 |  |  | $ | 4 |  |  | $ | (1) |  |  | $ | — |  |  | $ | 17 |
LIFO inventory | 226 |  |  | 159 |  |  | (30) |  |  | (10) |  |  | 365 |
Non-environmental asset retirement obligations | 51 |  |  | 2 |  |  | (1) |  |  | 1 |  |  | 51 |
Environmental contingencies | 285 |  |  | 11 |  |  | — |  |  | 15 |  |  | 281 |
Deferred tax valuation allowance | 393 |  |  | (55) |  |  | 1 |  |  | — |  |  | 339 |
| $ | 969 |  |  | $ | 121 |  |  | $ | (31) |  |  | $ | 6 |  |  | $ | 1,053 |
(1)Other accounts in the reserve for LIFO inventory was due to assets held for sale classification resulting from the Company entering into a definitive agreement to sell the adhesives resins business. (2)Deductions in the reserve for LIFO inventory was the result of the divestiture of rubber additives. For additional information, see Note 2, "Divestitures".
(Dollars in millions) |  |  | Additions |  |  |  |
| Balance at January 1, 2020 |  | Charges (Credits) to Cost and Expense |  | Other Accounts |  | Deductions |  | Balance at December 31, 2020
Reserve for: |  |  |  |  |  |  |  |  |
Credit losses | $ | 11 |  |  | $ | 4 |  |  | $ | — |  |  | $ | 1 |  |  | $ | 14 |
LIFO inventory | 248 |  |  | (22) |  |  | — |  |  | — |  |  | 226 |
Non-environmental asset retirement obligations | 48 |  |  | 2 |  |  | 1 |  |  | — |  |  | 51 |
Environmental contingencies | 287 |  |  | 8 |  |  | — |  |  | 10 |  |  | 285 |
Deferred tax valuation allowance | 453 |  |  | (61) |  |  | 1 |  |  | — |  |  | 393 |
| $ | 1,047 |  |  | $ | (69) |  |  | $ | 2 |  |  | $ | 11 |  |  | $ | 969 |

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- Definition A Tabular disclosure of allowance and reserve accounts including their beginning and ending balances, as well as a reconciliation by type of activity during the period. Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References No definition available. + Details
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