Earnings Per Share - Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share
Net income (loss)	$ (311)	$ 117	$ (16,776)	$ 177
Net Income (Loss) Attributable to Noncontrolling Interest	9	7	23	20
Net income (loss) attributable to Baker Hughes Holdings LLC	$ (320)	$ 110	$ (16,799)	$ 157