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Impairment and Other Charges (Tables) | 12 Months Ended
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Dec. 31, 2020
Impairments and Other Charges [Abstract] |
Restructuring and Related Costs | The following table presents various pre-tax charges we recorded during the years ended December 31, 2020, 2019, and 2018 which are reflected within "Impairments and other charges" on our consolidated statements of operations.
| Year Ended December 31
Millions of dollars | 2020 | 2019 | 2018
Long-lived asset impairments | $ | 2,629 |  | $ | 1,603 |  | $ | — |
Inventory costs and write-downs | 505 |  | 458 |  | — |
Severance | 384 |  | 172 |  | — |
Joint ventures | — |  | 154 |  | — |
Venezuela investment write-down | — |  | — |  | 265 |
Other | 281 |  | 119 |  | — |
Total impairments and other charges | $ | 3,799 |  | $ | 2,506 |  | $ | 265 |

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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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