The number of business segments into which the company's operations are divided.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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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.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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- Definition

Description of payment terms in contract with customer. Includes, but is not limited to, timing of payment, existence of financing component, variability of consideration and constraint on variable consideration.

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Description of timing for satisfying performance obligation in contract with customer. Includes, but is not limited to, as services are rendered, and upon shipment, delivery or completion of service.

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Revenue (Details) $ in Millions	3 Months Ended		6 Months Ended
Revenue (Details) $ in Millions	Jun. 30, 2021 USD ($) Division	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Division	Jun. 30, 2020 USD ($)
Disaggregation of Revenue [Line Items]
Number of business segments \| Division	2		2
Revenue	$ 3,707	$ 3,196	$ 7,158	$ 8,233
Revenue, Performance Obligation, Description of Timing			one year
North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,569	1,049	$ 2,973	3,509
Latin America [Member]
Disaggregation of Revenue [Line Items]
Revenue	534	346	1,069	862
Europe/Africa/CIS [Member]
Disaggregation of Revenue [Line Items]
Revenue	679	691	1,313	1,522
Middle East/Asia [Member]
Disaggregation of Revenue [Line Items]
Revenue	925	1,110	1,803	2,340
Completion And Production [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,048	1,672	3,918	4,634
Drilling And Evaluation [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 1,659	$ 1,524	$ 3,240	$ 3,599
Minimum [Member]
Disaggregation of Revenue [Line Items]
Revenue, Performance Obligation, Description of Payment Terms			20
Maximum [Member]
Disaggregation of Revenue [Line Items]
Revenue, Performance Obligation, Description of Payment Terms			60
Revenue Benchmark [Member] \| UNITED STATES
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage			40.00%	41.00%