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Casualty, Environmental and Other Reserves (Tables) | 9 Months Ended
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Sep. 30, 2023
Casualty, Environmental and Other Reserves [Abstract] |
Schedule of Casualty, Environmental and Other Reserves | Casualty, environmental and other reserves are provided for in the consolidated balance sheets as shown in the table below.
| September 30, 2023 |  | December 31, 2022
(Dollars in millions) | Current | Long-term | Total |  | Current | Long-term | Total
Casualty: |  |  |  |  |  |  |
Personal Injury | $ | 40 |  | $ | 87 |  | $ | 127 |  |  | $ | 40 |  | $ | 86 |  | $ | 126 |
Occupational | 7 |  | 60 |  | 67 |  |  | 10 |  | 58 |  | 68 |
Total Casualty | 47 |  | 147 |  | 194 |  |  | 50 |  | 144 |  | 194 |
Environmental | 40 |  | 117 |  | 157 |  |  | 53 |  | 108 |  | 161 |
Other | 46 |  | 38 |  | 84 |  |  | 41 |  | 40 |  | 81 |
Total | $ | 133 |  | $ | 302 |  | $ | 435 |  |  | $ | 144 |  | $ | 292 |  | $ | 436 |

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- Definition Tabular disclosure of the loss contingencies that were reported in the period or disclosed as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-4 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-9 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-3 + Details
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