Segment Information - Summary of North America and International Revenue Disaggregated by Segment (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Revenue	$ 7,455	$ 7,879
Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	1,311	1,459
Drilling
Segment Reporting Information [Line Items]
Revenue	2,291	2,387
Production
Segment Reporting Information [Line Items]
Revenue	2,703	2,890
Cameron
Segment Reporting Information [Line Items]
Revenue	1,254	1,259
Other
Segment Reporting Information [Line Items]
Revenue	(104)	(116)
Operating Segments
Segment Reporting Information [Line Items]
Revenue	7,455	7,879
Operating Segments | Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	1,311	1,459
Operating Segments | Drilling
Segment Reporting Information [Line Items]
Revenue	2,291	2,387
Operating Segments | Production
Segment Reporting Information [Line Items]
Revenue	2,703	2,890
Operating Segments | Cameron
Segment Reporting Information [Line Items]
Revenue	1,254	1,259
Eliminations & other
Segment Reporting Information [Line Items]
Revenue	55	104
Eliminations & other | Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	5	4
Eliminations & other | Drilling
Segment Reporting Information [Line Items]
Revenue	45	54
Eliminations & other | Production
Segment Reporting Information [Line Items]
Revenue		1
Eliminations & other | Cameron
Segment Reporting Information [Line Items]
Revenue	22	57
Eliminations & other | Other
Segment Reporting Information [Line Items]
Revenue	(17)	(12)
North America | Operating Segments
Segment Reporting Information [Line Items]
Revenue	2,279	2,738
North America | Operating Segments | Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	199	216
North America | Operating Segments | Drilling
Segment Reporting Information [Line Items]
Revenue	524	578
North America | Operating Segments | Production
Segment Reporting Information [Line Items]
Revenue	1,066	1,373
North America | Operating Segments | Cameron
Segment Reporting Information [Line Items]
Revenue	506	581
North America | Operating Segments | Other
Segment Reporting Information [Line Items]
Revenue	(16)	(10)
International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	5,121	5,037
International | Operating Segments | Reservoir Characterization
Segment Reporting Information [Line Items]
Revenue	1,107	1,239
International | Operating Segments | Drilling
Segment Reporting Information [Line Items]
Revenue	1,722	1,755
International | Operating Segments | Production
Segment Reporting Information [Line Items]
Revenue	1,637	1,516
International | Operating Segments | Cameron
Segment Reporting Information [Line Items]
Revenue	726	621
International | Operating Segments | Other
Segment Reporting Information [Line Items]
Revenue	$ (71)	$ (94)