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v3.23.1

Casualty, Environmental and Other Reserves (Tables) | 3 Months Ended
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Mar. 31, 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.
| March 31, 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 | 10 |  | 56 |  | 66 |  |  | 10 |  | 58 |  | 68 |
Total Casualty | 50 |  | 143 |  | 193 |  |  | 50 |  | 144 |  | 194 |
Environmental | 53 |  | 109 |  | 162 |  |  | 53 |  | 108 |  | 161 |
Other | 48 |  | 35 |  | 83 |  |  | 41 |  | 40 |  | 81 |
Total | $ | 151 |  | $ | 287 |  | $ | 438 |  |  | $ | 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 -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12021-110248 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12053-110248 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349 + Details
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