Equity - Changes in Number of Shares Outstanding (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Units Held by Baker Hughes
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock repurchased and canceled (in shares)	17,600
Units Held by GE
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock repurchased and canceled (in shares)	194,900
Common Stock | Units Held by Baker Hughes
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year (in shares)	723,999	650,065
Exchange of Class B common stock for Class A common stock (in shares)	194,885	65,995
Repurchase and cancellation of Class A common stock (in shares)	(17,628)	0
Balance at end of year (in shares)	909,142	723,999
Common Stock | Units Held by Baker Hughes | RSUs
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issue of shares upon vesting of restricted stock units (in shares)	7,886	7,939
Common Stock | Units Held by GE
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year (in shares)	311,433	377,428
Exchange of Class B common stock for Class A common stock (in shares)	(194,885)	(65,995)
Repurchase and cancellation of Class A common stock (in shares)	0	0
Balance at end of year (in shares)	116,548	311,433
Common Stock | Units Held by GE | RSUs
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issue of shares upon vesting of restricted stock units (in shares)	0	0