The maximum percentage of revenue from one geographic segment for the periods presented.

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The number of countries that exceed the revenue threshold of 10%.

+ References

No definition available.

+ Details

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

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- Definition

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.

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
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-Paragraph 12
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+ Details

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Balance Type:	na
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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
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- Details

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- Details

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- Details

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- Details

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- Details

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Revenue (Details) $ in Millions	3 Months Ended		9 Months Ended
Revenue (Details) $ in Millions	Sep. 30, 2019 USD ($) Division	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) Division Countries	Sep. 30, 2018 USD ($) Countries
Disaggregation of Revenue [Line Items]
Number of business segments \| Division	2		2
Maximum Percentage Revenue from One Geographic Segment			10.00%	10.00%
Number of Countries Exceed Revenue Threshold \| Countries			1	1
Revenue	$ 5,550	$ 6,172	$ 17,217	$ 18,059
Revenue, Performance Obligation, Description of Timing			one year
North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,949	3,739	$ 9,551	11,090
Latin America [Member]
Disaggregation of Revenue [Line Items]
Revenue	608	522	1,766	1,458
Europe/Africa/CIS [Member]
Disaggregation of Revenue [Line Items]
Revenue	831	757	2,402	2,199
Middle East/Asia [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,162	1,154	3,498	3,312
Completion And Production [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,506	4,170	10,973	12,141
Drilling And Evaluation [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 2,044	$ 2,002	$ 6,244	$ 5,918
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			53.00%	59.00%