Description of Company and Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) Division	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Goodwill [Line Items]
Disposal Group, Including Discontinued Operation, Goodwill, Current	$ (276,000,000)
Goodwill, Impairment Loss	$ 0	$ 0	$ 0
Number of business segments | Division	2
Revenue Recognition [Abstract]
Standard contract period for revenue recognition of maintenance and support fees	1 year
Research and Development [Abstract]
Research and development costs	$ 487,000,000	601,000,000	588,000,000
Cash and Cash Equivalents [Abstract]
Cash equivalents, maximum maturity (in months)	3 months
Goodwill [Roll Forward]
Goodwill	$ 2,330,000,000		2,168,000,000
Current year acquisitions	53,000,000	156,000,000
Purchase price adjustments for previous acquisitions	2,000,000	6,000,000
Goodwill	$ 2,109,000,000	2,330,000,000
Minimum
Finite-lived intangible assets [Abstract]
Useful life of finite-lived intangible assets (in years)	2 years
Maximum
Finite-lived intangible assets [Abstract]
Useful life of finite-lived intangible assets (in years)	15 years
Completion and Production
Goodwill [Line Items]
Disposal Group, Including Discontinued Operation, Goodwill, Current	$ 0
Goodwill [Roll Forward]
Goodwill	1,606,000,000		1,533,000,000
Current year acquisitions	27,000,000	77,000,000
Purchase price adjustments for previous acquisitions	1,000,000	(4,000,000)
Goodwill	1,634,000,000	1,606,000,000
Drilling and Evaluation
Goodwill [Line Items]
Disposal Group, Including Discontinued Operation, Goodwill, Current	(276,000,000)
Goodwill [Roll Forward]
Goodwill	724,000,000		$ 635,000,000
Current year acquisitions	26,000,000	79,000,000
Purchase price adjustments for previous acquisitions	1,000,000	10,000,000
Goodwill	$ 475,000,000	$ 724,000,000