Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) employee in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) employee country	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jan. 01, 2019 USD ($)	Oct. 31, 2018	Jan. 01, 2018 USD ($)
Accounting Policies [Abstract]
Number of countries in which entity operates (more than) | country	120
Number of our employees | employee	66
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Research and development expenses	$ 700	$ 501	$ 352
Restricted cash and cash equivalents held in bank accounts	$ 1,208	1,190
Accounting Standards Update 2016-02 | Expected
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use asset				$ 800
Operating lease, liability				$ 800
Other assets | Accounting Standards Update 2016-18
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restricted cash		(7)
Cash, cash equivalents and restricted cash | Accounting Standards Update 2016-18
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restricted cash		7
Retained earnings | Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment						$ 25
Non-controlling Interests | Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment						$ 42
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligations expected to be satisfied, expected timing	10
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligations expected to be satisfied, expected timing	20
GE Transaction Agreement | General Electric Company
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Approximate interest to be acquired	50.40%				62.50%
GE Transaction Agreement | Baker Hughes Incorporated
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Approximate interest to be acquired	49.60%
General Electric Company
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restricted cash and cash equivalents held in bank accounts	$ 461	764
Related party amount, due to related party | GE
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash	$ 747	$ 997