Equity - Non-Controlling Interest (Details) - USD ($) $ in Millions		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2018	Dec. 31, 2017
Noncontrolling Interest [Line Items]
Stockholders' Equity Attributable to Noncontrolling Interest	$ 115	$ 115	$ 132
Total equity	$ 34,414	$ 34,414	$ 18,163	$ 34,876	$ 38,396
Baker Hughes Holdings LLC | General Electric Company
Noncontrolling Interest [Line Items]
Approximate interest	36.70%	50.40%
General Electric Company
Noncontrolling Interest [Line Items]
GE's reduced ownership percentage			30.10%