Revenue - Summary of Disaggregate Revenue by Destinations and Revenue Streams (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Disaggregate revenue	$ 2,134	$ 2,188	$ 4,186	$ 4,291
Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,218	1,207	2,408	2,353
Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	974	1,025	1,871	2,017
Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(58)	(44)	(93)	(79)
Continental [Member] \| Intersegment Revenue [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	0	0	0	0
Continental [Member] \| Intersegment Revenue [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	20	17	31	31
Continental [Member] \| Intersegment Revenue [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	38	27	62	48
Continental [Member] \| Intersegment Revenue [Member] \| Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(58)	(44)	(93)	(79)
Continental [Member] \| North America [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	778	841	1,533	1,653
Continental [Member] \| North America [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	213	271	450	532
Continental [Member] \| North America [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	565	570	1,083	1,121
Continental [Member] \| International [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,356	1,347	2,653	2,638
Continental [Member] \| International [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	985	919	1,927	1,790
Continental [Member] \| International [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	371	428	726	848
Land and Offshore [Member] \| Intersegment Revenue [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	0	0	0	0
Land and Offshore [Member] \| Intersegment Revenue [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	20	17	31	31
Land and Offshore [Member] \| Intersegment Revenue [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	38	27	62	48
Land and Offshore [Member] \| Intersegment Revenue [Member] \| Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(58)	(44)	(93)	(79)
Land and Offshore [Member] \| Land Destination [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,110	1,155	2,131	2,311
Land and Offshore [Member] \| Land Destination [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	397	418	745	819
Land and Offshore [Member] \| Land Destination [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	713	737	1,386	1,492
Land and Offshore [Member] \| Offshore Destination [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,024	1,033	2,055	1,980
Land and Offshore [Member] \| Offshore Destination [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	801	772	1,632	1,503
Land and Offshore [Member] \| Offshore Destination [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	$ 223	$ 261	$ 423	$ 477