Segment Information - Summary of North America and International Revenue Disaggregated by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenue	$ 5,847	$ 5,258	$ 16,704	$ 18,069
Digital Integration
Segment Reporting Information [Line Items]
Revenue	812	738	2,401	2,235
Reservoir Performance
Segment Reporting Information [Line Items]
Revenue	1,192	1,215	3,312	4,354
Well Construction
Segment Reporting Information [Line Items]
Revenue	2,273	1,837	6,319	6,747
Production Systems
Segment Reporting Information [Line Items]
Revenue	1,674	1,532	4,946	5,001
Eliminations & Other
Segment Reporting Information [Line Items]
Revenue	(104)	(64)	(274)	(268)
Operating Segments
Segment Reporting Information [Line Items]
Revenue	5,847	5,258	16,704	18,069
Operating Segments | Digital Integration
Segment Reporting Information [Line Items]
Revenue	812	738	2,401	2,235
Operating Segments | Reservoir Performance
Segment Reporting Information [Line Items]
Revenue	1,192	1,215	3,312	4,354
Operating Segments | Production Systems
Segment Reporting Information [Line Items]
Revenue	1,674	1,532	4,946	5,001
Eliminations & other
Segment Reporting Information [Line Items]
Revenue	43	13	122	99
Eliminations & other | Digital Integration
Segment Reporting Information [Line Items]
Revenue	1	1	2	5
Eliminations & other | Reservoir Performance
Segment Reporting Information [Line Items]
Revenue	1	3	3	9
Eliminations & other | Well Construction
Segment Reporting Information [Line Items]
Revenue	52	40	150	151
Eliminations & other | Production Systems
Segment Reporting Information [Line Items]
Revenue		5	12	26
Eliminations & other | Eliminations & Other
Segment Reporting Information [Line Items]
Revenue	(11)	(36)	(45)	(92)
North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue	1,129	1,034	3,185	4,311
North America | Operating Segments | Digital Integration
Segment Reporting Information [Line Items]
Revenue	196	134	549	431
North America | Operating Segments | Reservoir Performance
Segment Reporting Information [Line Items]
Revenue	79	275	237	1,208
North America | Operating Segments | Well Construction
Segment Reporting Information [Line Items]
Revenue	382	235	1,045	1,201
North America | Operating Segments | Production Systems
Segment Reporting Information [Line Items]
Revenue	469	389	1,347	1,488
North America | Operating Segments | Eliminations & Other
Segment Reporting Information [Line Items]
Revenue	3	1	7	(17)
International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	4,675	4,211	13,397	13,659
International | Operating Segments | Digital Integration
Segment Reporting Information [Line Items]
Revenue	615	603	1,850	1,799
International | Operating Segments | Reservoir Performance
Segment Reporting Information [Line Items]
Revenue	1,112	937	3,072	3,137
International | Operating Segments | Well Construction
Segment Reporting Information [Line Items]
Revenue	1,839	1,562	5,124	5,395
International | Operating Segments | Production Systems
Segment Reporting Information [Line Items]
Revenue	1,205	1,138	3,587	3,487
International | Operating Segments | Eliminations & Other
Segment Reporting Information [Line Items]
Revenue	$ (96)	$ (29)	$ (236)	$ (159)