Commitments and Contingencies - Narrative (Details) € in Millions, $ in Millions					1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 03, 2020 USD ($)	Mar. 15, 2019 USD ($)	Mar. 11, 2019 EUR (€)	Aug. 03, 2016 EUR (€)	Jan. 31, 2013	Mar. 31, 2020 EUR (€) subsidiary company	Mar. 18, 2019 USD ($)	Mar. 31, 2020 USD ($)	Sep. 11, 2019 count_second_degree_assault	Sep. 11, 2019 count_assault	Sep. 11, 2019 count_third_degree_assault	Sep. 11, 2019 count_first_degree_account	Jul. 22, 2019 count_third_degree_assault	May 07, 2019 count_fourth_degree_assault	May 07, 2019 count_third_degree_assault
Loss Contingencies [Line Items]
Off-balance sheet arrangements								$ 4,100.0
Pending litigation | Alaska District Attorney v. Baker Hughes
Loss Contingencies [Line Items]
Number of charges									10	25	5	10	6	3	6
Pending litigation | Equipment failure | Natural Gas Storage System in Northern Germany
Loss Contingencies [Line Items]
Value of alleged damages sought | €			€ 142	€ 202
Marginal rate on annual prime rate (percent)			5.00%	5.00%
Pending litigation | Damage from fire | INOES and Naphtachimie
Loss Contingencies [Line Items]
Value of alleged damages sought | €						€ 250
Plant shutdown days					15 days
Subsidiaries participating | subsidiary						2
Other companies participating | company						17
Pending litigation | Breach of contract | International Engineering & Construction S.A. (IEC)
Loss Contingencies [Line Items]
Value of alleged damages sought		$ 591.0
Pending litigation | Loss of cash flow | International Engineering & Construction S.A. (IEC)
Loss Contingencies [Line Items]
Value of alleged damages sought	$ 700.0
Pending litigation | Lost profits and various costs | International Engineering & Construction S.A. (IEC)
Loss Contingencies [Line Items]
Value of alleged damages sought	244.9
Pending litigation | Liquidated damages | International Engineering & Construction S.A. (IEC)
Loss Contingencies [Line Items]
Value of alleged damages sought	4.8
Pending litigation | Take-or-pay future obligations | International Engineering & Construction S.A. (IEC)
Loss Contingencies [Line Items]
Value of alleged damages sought	$ 58.6
Pending litigation | Breach of fiduciary duties | Shareholder derivative lawsuits
Loss Contingencies [Line Items]
Repurchase of stock from GE							$ 1,500.0
GE sale of stock							$ 2,500.0