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Segment Information - Summary of North America and International Revenue Disaggregated by Segment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenue	$ 22,929	$ 23,601	$ 32,917
Operating Segments
Segment Reporting Information [Line Items]
Revenue	22,929	23,601	32,917
Eliminations & other
Segment Reporting Information [Line Items]
Revenue	167	121	229
North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue	4,466	5,478	10,446
International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	18,296	18,002	22,242
Digital Integration
Segment Reporting Information [Line Items]
Revenue	3,290	3,067	4,145
Digital Integration | Operating Segments
Segment Reporting Information [Line Items]
Revenue	3,290	3,067	4,145
Digital Integration | Eliminations & other
Segment Reporting Information [Line Items]
Revenue	4	7	8
Digital Integration | North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue	812	573	865
Digital Integration | International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	2,474	2,487	3,272
Reservoir Performance
Segment Reporting Information [Line Items]
Revenue	4,599	5,602	9,299
Reservoir Performance | Operating Segments
Segment Reporting Information [Line Items]
Revenue	4,599	5,602	9,299
Reservoir Performance | Eliminations & other
Segment Reporting Information [Line Items]
Revenue	4	12	12
Reservoir Performance | North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue	329	1,547	3,779
Reservoir Performance | International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	4,266	4,043	5,508
Well Construction
Segment Reporting Information [Line Items]
Revenue	8,706	8,614	11,880
Well Construction | Operating Segments
Segment Reporting Information [Line Items]
Revenue	8,706	8,614	11,880
Well Construction | Eliminations & other
Segment Reporting Information [Line Items]
Revenue	196	196	257
Well Construction | North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue	1,485	1,453	2,814
Well Construction | International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	7,025	6,965	8,809
Production Systems
Segment Reporting Information [Line Items]
Revenue	6,710	6,650	8,167
Production Systems | Operating Segments
Segment Reporting Information [Line Items]
Revenue	6,710	6,650	8,167
Production Systems | Eliminations & other
Segment Reporting Information [Line Items]
Revenue	13	27	54
Production Systems | North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue	1,832	1,921	3,053
Production Systems | International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	4,865	4,702	5,060
Eliminations & Other
Segment Reporting Information [Line Items]
Revenue	(376)	(332)	(574)
Eliminations & Other | Eliminations & other
Segment Reporting Information [Line Items]
Revenue	(50)	(121)	(102)
Eliminations & Other | North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue	8	(16)	(65)
Eliminations & Other | International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	$ (334)	$ (195)	$ (407)

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