Segment Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			3
Segment Reporting Information [Line Items]
Revenue	$ 1,405	$ 1,274	$ 2,763	$ 2,460
Total Revenue	1,405	1,274	2,763	2,460
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	210	74	392	193
Depreciation and Amortization	(86)	(81)	(171)	(161)
Share-based Compensation	(12)	(8)	(25)	(17)
Other Credits (Charges)	(3)	(1)	(8)	4
Operating Income	264	201	497	386
Operating Segments | Drilling and Evaluation
Segment Reporting Information [Line Items]
Revenue	427	394	849	766
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	130	106	260	214
Operating Segments | Well Construction And Completion
Segment Reporting Information [Line Items]
Revenue	504	440	962	861
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	145	109	265	205
Operating Segments | Production and Intervention
Segment Reporting Information [Line Items]
Revenue	369	366	717	715
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	85	81	158	149
All Other
Segment Reporting Information [Line Items]
Revenue	105	74	235	118
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	23	9	50	18
Corporate
Segment Reporting Information [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ (18)	$ (14)	$ (32)	$ (26)