EARNINGS PER SHARE - Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Class of Stock [Line Items]
Net income (loss)	$ 524	$ (9)	$ 1,519	$ (766)
Less: Net income attributable to noncontrolling interests	6	8	16	17
Net income (loss) attributable to Baker Hughes Company	$ 518	$ (17)	$ 1,503	$ (783)
Class A Common Stock
Weighted average shares outstanding:
Class A basic (in shares)	1,009	1,008	1,010	983
Class A diluted (in shares)	1,017	1,008	1,016	983
Net income (loss) per share attributable to common stockholders:
Class A basic (in dollars per share)	$ 0.51	$ (0.02)	$ 1.49	$ (0.80)
Class A diluted (in dollars per share)	$ 0.51	$ (0.02)	$ 1.48	$ (0.80)