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v3.20.4

Revenue (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) Division Countries | Dec. 31, 2019 USD ($) Countries | Dec. 31, 2018 USD ($) Countries
Disaggregation of Revenue [Line Items] |  |  |
Number of business segments | Division | 2 |  |
Maximum Percentage Revenue from One Geographic Segment | 10.00% | 10.00% | 10.00%
Number of Countries Exceed Revenue Threshold | Countries | 1 | 1 | 1
Revenue, Performance Obligation, Description of Timing | one year |  |
Revenue | $ 14,445 | $ 22,408 | $ 23,995
North America [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue | 5,731 | 11,884 | 14,431
Latin America [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue | 1,668 | 2,364 | 2,065
Europe/Africa/CIS [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue | 2,813 | 3,285 | 2,945
Middle East/Asia [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue | $ 4,233 | 4,875 | 4,554
Minimum |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue, Performance Obligation, Description of Payment Terms | 20 |  |
Maximum |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue, Performance Obligation, Description of Payment Terms | 60 days |  |
Completion and Production |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue | $ 7,839 | 14,031 | 15,973
Drilling and Evaluation |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue | $ 6,606 | $ 8,377 | $ 8,022
Revenue Benchmark [Member] | UNITED STATES |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Concentration Risk, Percentage | 38.00% | 51.00% | 58.00%

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