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Revenue - Summary of Disaggregate Revenue by Destinations and Revenue Streams (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Disaggregate revenue	$ 2,188	$ 2,216	$ 4,291	$ 4,371
Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,025	1,050	2,017	2,067
Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,207	1,204	2,353	2,382
Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(44)	(38)	(79)	(78)
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	27	23	48	47
Continental [Member] | Intersegment Revenue [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	17	15	31	31
Continental [Member] | Intersegment Revenue [Member] | Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(44)	(38)	(79)	(78)
Continental [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	841	835	1,653	1,668
Continental [Member] | North America [Member] | Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	570	534	1,121	1,071
Continental [Member] | North America [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	271	301	532	597
Continental [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,347	1,381	2,638	2,703
Continental [Member] | International [Member] | Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	428	493	848	949
Continental [Member] | International [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	919	888	1,790	1,754
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	27	23	48	47
Land and Offshore [Member] | Intersegment Revenue [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	17	15	31	31
Land and Offshore [Member] | Intersegment Revenue [Member] | Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	(44)	(38)	(79)	(78)
Land and Offshore [Member] | Land Destination [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,155	1,237	2,311	2,436
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	737	777	1,492	1,549
Land and Offshore [Member] | Land Destination [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	418	460	819	887
Land and Offshore [Member] | Offshore Destination [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	1,033	979	1,980	1,935
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Energy Products and Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	261	250	477	471
Land and Offshore [Member] | Offshore Destination [Member] | Operating Segments [Member] | Energy Equipment [Member]
Disaggregation of Revenue [Line Items]
Disaggregate revenue	$ 772	$ 729	$ 1,503	$ 1,464

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