Description of Company and Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) Division	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of business segments | Division	2
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 0	$ 0	$ 0
Research and Development [Abstract]
Research and development costs	$ 321,000,000	309,000,000	404,000,000
Cash and Cash Equivalents [Abstract]
Cash equivalents, maximum maturity (in months)	3 months
Goodwill [Roll Forward]
Goodwill	$ 2,804,000,000	2,812,000,000
Current year acquisitions	12,000,000
Other	27,000,000	(8,000,000)
Goodwill	$ 2,843,000,000	2,804,000,000	2,812,000,000
Minimum
Finite-lived intangible assets [Abstract]
Useful life of finite-lived intangible assets (in years)	1 year
Maximum
Finite-lived intangible assets [Abstract]
Useful life of finite-lived intangible assets (in years)	28 years
Completion and Production
Goodwill [Roll Forward]
Goodwill	$ 1,973,000,000	2,039,000,000
Current year acquisitions	12,000,000
Other	27,000,000	(66,000,000)
Goodwill	2,012,000,000	1,973,000,000	2,039,000,000
Drilling and Evaluation
Goodwill [Roll Forward]
Goodwill	831,000,000	773,000,000
Current year acquisitions	0
Other	0	58,000,000
Goodwill	$ 831,000,000	$ 831,000,000	$ 773,000,000