Description of Company and Significant Accounting Policies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) Division	Dec. 31, 2024 USD ($) Division	Dec. 31, 2023 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of Operating Segments | Division	2	2
Number of Reportable Segments | Division	2	2
Research and Development [Abstract]
Research and Development Expense	$ 411	$ 426	$ 408
Cash and Cash Equivalent [Abstract]
Cash Equivalents Maximum Maturity	3 months
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 2,838	2,850
Goodwill, Acquired During Period	84	8
Goodwill, Impairment Loss	0	0	0
Goodwill, Other Increase (Decrease)	16	(20)
Goodwill, Ending Balance	$ 2,938	2,838	2,850
Minimum [Member]
Finite-lived intangible assets [Abstract]
Useful life of finite-lived intangible assets (in years)	1 year
Maximum [Member]
Finite-lived intangible assets [Abstract]
Useful life of finite-lived intangible assets (in years)	30 years
Completion And Production [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 2,020	2,032
Goodwill, Acquired During Period	8	8
Goodwill, Impairment Loss	0	0	0
Goodwill, Other Increase (Decrease)	16	(20)
Goodwill, Ending Balance	2,044	2,020	2,032
Drilling And Evaluation [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	818	818
Goodwill, Acquired During Period	76	0
Goodwill, Impairment Loss	0	0	0
Goodwill, Other Increase (Decrease)	0	0
Goodwill, Ending Balance	$ 894	$ 818	$ 818