Revenue - Summary of Disaggregate Revenue by Destinations and Revenue Streams (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Disaggregation of Revenue [Line Items]
Disaggregate revenue	$ 2,226	$ 2,176	$ 6,412	$ 6,467
Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,220	1,247	3,628	3,600
Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,057	971	2,928	2,988
Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(51)	(42)	(144)	(121)
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	19	17	50	48
Continental [Member] \| Intersegment Revenue [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	32	25	94	73
Continental [Member] \| Intersegment Revenue [Member] \| Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(51)	(42)	(144)	(121)
Continental [Member] \| North America [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	859	812	2,392	2,465
Continental [Member] \| North America [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	266	275	716	807
Continental [Member] \| North America [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	593	537	1,676	1,658
Continental [Member] \| International [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,367	1,364	4,020	4,002
Continental [Member] \| International [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	935	955	2,862	2,745
Continental [Member] \| International [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	432	409	1,158	1,257
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	19	17	50	48
Land and Offshore [Member] \| Intersegment Revenue [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	32	25	94	73
Land and Offshore [Member] \| Intersegment Revenue [Member] \| Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(51)	(42)	(144)	(121)
Land and Offshore [Member] \| Land Destination [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,167	1,079	3,298	3,390
Land and Offshore [Member] \| Land Destination [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	395	379	1,140	1,198
Land and Offshore [Member] \| Land Destination [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	772	700	2,158	2,192
Land and Offshore [Member] \| Offshore Destination [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,059	1,097	3,114	3,077
Land and Offshore [Member] \| Offshore Destination [Member] \| Operating Segments [Member] \| Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	806	851	2,438	2,354
Land and Offshore [Member] \| Offshore Destination [Member] \| Operating Segments [Member] \| Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	$ 253	$ 246	$ 676	$ 723