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Impairments and Other Charges (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2021 | [1] | Mar. 31, 2020
Restructuring Cost and Reserve [Line Items] |  |
Impairments and other charges | $ 0 | $ 1,073
Drilling And Evaluation [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Impairments and other charges |  | 277
Completion And Production [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Impairments and other charges |  | $ 780,000
[1] | For the three months ended March 31, 2020, amount includes approximately $780 million attributable to Completion and Production, $277 million attributable to Drilling and Evaluation, and $16 million attributable to Corporate and other.

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of restructuring charges, remediation cost, and asset impairment loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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- Details
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