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Impairment and Other Charges (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Long-lived asset impairments |  |  | $ 1,603 |  |
Inventory costs and write-downs |  |  | 458 |  |
Severance |  |  | 172 |  |
Joint ventures |  |  | 154 |  |
Other |  |  | 119 |  |
Total impairments and other charges | [1] |  | $ 2,506 | $ 265 | $ 647
North America land rig count decline during 2019 |  |  | 26.00% |  |
North America land rig count decline in Q4 2019 |  | 9.00% |  |  |
Impairments and other charges |  |  | $ 2,506 | 265 | 647
Impairment of hydraulic fracturing equipment |  |  | 759 |  |
Impairment of legacy drilling equipment |  |  | 243 |  |
Impairment of real estate facilities |  |  | 215 |  |
Impairment of right-of-use assets associated with operating leases |  |  | 139 |  |
Impairment of intangible assets |  |  | 98 |  |
Impairment of other fixed assets |  |  | 148 |  |
Completion and Production |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairments and other charges |  |  | 1,600 |  |
Drilling and Evaluation |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairments and other charges |  |  | $ 849 |  |
VENEZUELA |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Venezuela investment write-down |  |  |  | 265 | 647
Total impairments and other charges | [1] |  |  | $ 265 | $ 647
[1] | Impairments and other charges are as follows: -For the year ended December 31, 2019, amount includes approximately $1.6 billion attributable to Completion and Production, $849 million attributable to Drilling and Evaluation, and $56 million attributable to Corporate and other. -For the years ended December 31, 2018 and December 31, 2017, we recorded aggregate charges of $265 million and $647 million, respectively, to write-down our investment in Venezuela.

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- Definition The decline in North America land rig count from its high point in early 2019 to its low point in December 2019. + References No definition available. + Details
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