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Committments and Contingent Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Loss Contingencies by Contingency [Table Text Block] | maintain reserves for various contingent liabilities as follows (dollars in millions):
| December 31,
| 2022 |  | 2021
Environmental reserves | $ | 27 |  |  | $ | 25 |
Other reserves | — |  |  | — |
Total contingencies | 27 |  |  | 25 |
Current portion* | (1) |  |  | (1) |
Long-term portion | $ | 26 |  |  | $ | 24 |
*The current portion of the contingency reserve is included in Accounts payable and accrued liabilities on our Consolidated Balance Sheets.
Schedule of Environmental Loss Contingencies by Site [Table Text Block] | The activity in our reserve for estimated environmental loss contingency reserves is summarized in the following table (dollars in millions).
| Year Ended December 31,
| 2022 |  | 2021
Beginning balance | $ | 25 |  |  | $ | 13 |
Adjustments to expense during the year (other operating credits charges, net and cost of sales) | 2 |  |  | 7 |
Adjustments to amounts to be paid by a third party | 2 |  |  | 6 |
Payments made | (2) |  |  | (1) |
Ending balance | $ | 27 |  |  | $ | 25 |

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- Definition Tabular disclosure of environmental loss contingencies by individual site. Does not include loss contingencies that are not environmental in nature. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q1) -URI https://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 10 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 10 -Subparagraph (d)(1) -URI https://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q2) -URI https://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 10 -Subparagraph (d)(3) -URI https://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859 + Details
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