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Impairments and Other Charges (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Decline in US land rig count | 50.00% |  |  |  |  |  |
Long-lived asset impairments | $ 1,252,000,000 |  |  | $ 108,000,000 |  | $ 2,268,000,000 | $ 150,000,000
Severance costs | 241,000,000 |  |  | 58,000,000 |  | 273,000,000 | 77,000,000
Other | 160,000,000 |  |  | 48,000,000 |  | 185,000,000 | 48,000,000
Impairments and other charges | 2,147,000,000 | [1] |  | 247,000,000 | [1] | 3,220,000,000 | 308,000,000
Impairment of hydraulic fracturing equipment | 368,000,000 |  |  |  |  |  |
Impairment of drilling equipment | 281,000,000 |  |  |  |  |  |
Inventory write-downs | $ 494,000,000 |  |  | 33,000,000 |  | 494,000,000 | 33,000,000
Decline in International average rig count | 22.00% |  |  |  |  |  |
Impairment of well intervention services equipment. | $ 146,000,000 |  |  |  |  |  |
Impairment of right-of-use assets | 122,000,000 |  |  |  |  |  |
Impairment of intangible assets | 131,000,000 |  |  |  |  |  |
Impairment of other fixed assets | 204,000,000 |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
WTI oil spot price | (41) |  | $ (63) |  |  |  |
Minimum [Member] |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
WTI oil spot price | 37 |  |  |  |  |  |
Drilling And Evaluation [Member] |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Impairments and other charges | $ 770,000,000 |  |  | $ 142,000,000 |  | $ 1,000,000,000.0 | $ 153,000,000
[1] | For the three months ended June 30, 2020, amount includes approximately $1.4 billion attributable to Completion and Production, $770 million attributable to Drilling and Evaluation, and $25 million attributable to Corporate and other. For the three months ended June 30, 2019, amount includes $77 million attributable to Completion and Production, $142 million attributable to Drilling and Evaluation, and $28 million attributable to Corporate and other. For the six months ended June 30, 2020, amount includes $2.1 billion attributable to Completion and Production, $1.0 billion attributable to Drilling and Evaluation, and $41 million attributable to Corporate and other. For the six months ended June 30, 2019, amount includes $127 million attributable to Completion and Production, $153 million attributable to Drilling and Evaluation, and $28 million attributable to Corporate and other. See Note 2 for further discussion on these impairments and other charges.

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