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Charges and Credits - Additional Information (Detail) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 USD ($) Emp | Mar. 31, 2020 USD ($) Unit | Jun. 30, 2019 USD ($) | Dec. 31, 2019 USD ($)
Charges And Credits [Line Items] |  |  |  |
Total number of reporting units | Unit |  | 11 |  |
Goodwill |  | $ 16,000,000,000.0 |  |
Goodwill impairment charge |  | $ 3,100,000,000 |  |
Goodwill | $ 12,954,000,000 |  |  | $ 16,042,000,000
Expected increase/decrease in discount rate assumption |  | 0.50% |  |
Number of reporting units fair value to be impacted | Unit |  | 7 |  |
Intangible assets |  | $ 3,300,000,000 |  |
Charges And Credits |  |  | $ 0 |
Carrying Value Of Impaired Intangible Asset |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Intangible assets |  | 900,000,000 |  |
Carrying Value Of Asset Production Solutions | North America |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Intangible assets |  | 1,300,000,000 |  |
North America pressure pumping asset impairments | North America |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Intangible assets |  | 600,000,000 |  |
Severance |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Intangible assets | 202,000,000 |  |  |
Other Restructuring |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Intangible assets |  | 79,000,000 |  |
Valuation allowance | North America |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Intangible assets |  | 164,000,000 |  |
Workforce reductions |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | $ 1,021,000,000.000 |  |  |
Reduction in workforce | Emp | 21,000 |  |  |
Asset Performance Solutions Investments | Latin America |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | $ 730,000,000 |  |  |
Fixed Asset Impairments |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | 666,000,000 |  |  |
Inventory Write Down |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | 603,000,000 |  |  |
Right-of-use Asset Impairments |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | 311,000,000 |  |  |
Costs Associated With Exiting Certain Activities |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | 205,000,000 |  |  |
Multiclient Seismic Data Impairment |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | 156,000,000 |  |  |
Other |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | 61,000,000 |  |  |
Allowance For Doubtful Accounts |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | 42,000,000 |  |  |
Repurchase of bonds |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | 40,000,000 |  |  |
Postretirement Benefits Curtailment Gain |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Restructuring and asset impairment charges | $ 69,000,000 |  |  |
Cameron |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Intangible assets |  | 2,200,000,000 |  |
Smith International Inc Smith Aand Geoservices |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Intangible assets |  | $ 1,100,000,000 |  |
Minimum |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Discount rate utilized |  | 12.00% |  |
Maximum |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Discount rate utilized |  | 13.50% |  |
Expected percentage change in fair value of reporting units |  | 5.00% |  |
Four Reporting Units [Member] |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Total number of reporting units | Unit |  | 4 |  |
Goodwill |  | $ 4,500,000,000 |  |
Seven Reporting Units [Member] |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Total number of reporting units | Unit |  | 7 |  |
Goodwill |  | $ 11,500,000,000 |  |
Six Reporting Units |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Total number of reporting units | Unit |  | 6 |  |
Goodwill |  | $ 8,400,000,000 |  |
Six Reporting Units | Minimum |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Goodwill |  | 200,000,000 |  |
Six Reporting Units | Maximum |  |  |  |
Charges And Credits [Line Items] |  |  |  |
Goodwill |  | $ 5,000,000,000.0 |  |

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