Segment Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) segment	Sep. 30, 2023 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			3
Segment Reporting Information [Line Items]
Revenue	$ 1,409	$ 1,313	$ 4,172	$ 3,773
Total Revenue	1,409	1,313	4,172	3,773
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	178	164	570	357
Depreciation and Amortization	(89)	(83)	(260)	(244)
Share-based Compensation	(10)	(9)	(35)	(26)
Other Credits (Charges)	(13)	5	(21)	9
Operating Income	243	218	740	604
Operating Segments | Drilling and Evaluation
Segment Reporting Information [Line Items]
Revenue	435	388	1,284	1,154
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	111	111	371	325
Operating Segments | Well Construction And Completion
Segment Reporting Information [Line Items]
Revenue	509	459	1,471	1,320
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	151	119	416	324
Operating Segments | Production and Intervention
Segment Reporting Information [Line Items]
Revenue	371	371	1,088	1,086
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	83	86	241	235
All Other
Segment Reporting Information [Line Items]
Revenue	94	95	329	213
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	23	7	73	25
Corporate
Segment Reporting Information [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ (13)	$ (18)	$ (45)	$ (44)