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Revenue - Summary of Disaggregate Revenue by Destinations and Revenue Streams (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Disaggregate revenue	$ 2,176	$ 2,191	$ 6,467	$ 6,562
Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	971	1,003	2,988	3,070
Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,247	1,219	3,600	3,601
Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(42)	(31)	(121)	(109)
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 Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	25	18	73	65
Continental [Member] | Intersegment Revenue [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	17	13	48	44
Continental [Member] | Intersegment Revenue [Member] | Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(42)	(31)	(121)	(109)
Continental [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	812	821	2,465	2,489
Continental [Member] | North America [Member] | Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	537	502	1,658	1,573
Continental [Member] | North America [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	275	319	807	916
Continental [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,364	1,370	4,002	4,073
Continental [Member] | International [Member] | Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	409	483	1,257	1,432
Continental [Member] | International [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	955	887	2,745	2,641
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 Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	25	18	73	65
Land and Offshore [Member] | Intersegment Revenue [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	17	13	48	44
Land and Offshore [Member] | Intersegment Revenue [Member] | Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(42)	(31)	(121)	(109)
Land and Offshore [Member] | Land Destination [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,079	1,197	3,390	3,633
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	700	761	2,192	2,310
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	379	436	1,198	1,323
Land and Offshore [Member] | Offshore Destination [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,097	994	3,077	2,929
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	246	224	723	695
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	$ 851	$ 770	$ 2,354	$ 2,234

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