Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Stock And Units Repurchased And Retired During Period, Value	$ (434)		$ (250)
GE | BHH LLC | GE
Class of Stock [Line Items]
Ownership percentage by noncontrolling owners	11.40%
BHH LLC
Class of Stock [Line Items]
Authorized stock repurchase (in shares)	2,000,000,000
Remaining authorized repurchase amount	$ 1,600
Units Held by Baker Hughes
Class of Stock [Line Items]
Stock repurchased and canceled (in shares)	17,600,000
Cash dividends per share (in dollars per share)	$ 0.72	$ 0.72	$ 0.72
Stock And Units Repurchased And Retired During Period, Value	$ 434
Units Held by Baker Hughes | Common Stock [Member]
Class of Stock [Line Items]
Exchange of Stock Shares Exchanged	194,885,000	65,995,000
Units Held by GE
Class of Stock [Line Items]
Stock repurchased and canceled (in shares)	194,900,000
Units Held by GE | Common Stock [Member]
Class of Stock [Line Items]
Exchange of Stock Shares Exchanged	(194,885,000)	(65,995,000)