Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (15,796)	$ 277	$ 139
Less: Net income attributable to noncontrolling interests	29	36	19
Less: Net income attributable to noncontrolling interests	(15,825)	241	120
Other comprehensive income (loss):
Investment securities	(2)	2	(3)
Foreign currency translation adjustments	175	53	(502)
Cash flow hedges	(5)	12
Cash flow hedges			(4)
Benefit plans	(124)	(75)	(64)
Other comprehensive income (loss)	44	(8)	(573)
Less: Other comprehensive loss attributable to noncontrolling interests	(3)	0	0
Other comprehensive income (loss) attributable to Baker Hughes Holdings LLC	47	(8)	(573)
Comprehensive income (loss)	(15,752)	269	(434)
Less: Comprehensive income attributable to noncontrolling interests	26	36	19
Comprehensive income (loss) attributable to Baker Hughes Holdings LLC	$ (15,778)	$ 233	$ (453)