Consolidated and Combined Statements of Income (Loss) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Revenue:      
Revenues $ 23,838 $ 22,877 $ 17,179
Costs and expenses:      
Selling, general and administrative 2,832 2,699 2,535
Restructuring, impairment and other 342 433 412
Separation and merger related 184 153 373
Total costs and expenses 22,764 22,176 17,463
Operating income (loss) 1,074 701 (284)
Other non operating income (loss), net (84) 202 80
Interest expense, net (237) (223) (131)
Income (loss) before income taxes and equity in loss of affiliate 753 680 (335)
Equity in loss of affiliate 0 (139) (11)
Provision for income taxes (482) (258) (45)
Net income (loss) 271 283 (391)
Less: Net income attributable to GE O&G pre-merger 0 0 42
Less: Net income (loss) attributable to noncontrolling interests 143 88 (330)
Net income (loss) attributable to Baker Hughes Company $ 128 $ 195 $ (103)
Per share amounts:      
Basic earnings (loss) per Class A common share (in dollars per share) $ 0.23 $ 0.46 $ (0.24)
Diluted earnings (loss) per Class A common share (in dollars per share) 0.23 0.45 (0.24)
Class A      
Per share amounts:      
Basic earnings (loss) per Class A common share (in dollars per share) 0.23 0.46 (0.24)
Diluted earnings (loss) per Class A common share (in dollars per share) 0.23 0.45 (0.24)
Class A | Cash dividend      
Per share amounts:      
Dividends per share (in dollars per share) 0.72 0.72 0.35
Class A | Special dividend      
Per share amounts:      
Dividends per share (in dollars per share) $ 17.50
Sales of goods      
Revenue:      
Revenues $ 13,689 $ 13,113 $ 11,062
Costs and expenses:      
Cost 11,798 11,524 9,486
Sales of services      
Revenue:      
Revenues 10,149 9,764 6,117
Costs and expenses:      
Cost $ 7,608 $ 7,367 $ 4,657