Restructuring, Impairment and Other - Schedule of Restructuring Charges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 191	$ 38	$ 668	$ 145
Impairments of property, plant & equipment
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	65	6	214	22
Employee-related termination expenses
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	108	28	406	106
Contract termination fees
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	1	2	23	11
Other incremental costs
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	17	2	25	6
Operating segments | Oilfield Services
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	144	27	453	63
Operating segments | Oilfield Equipment
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	21	1	121	19
Operating segments | Turbo- machinery & Process Solutions
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	7	10	27	39
Operating segments | Digital Solutions
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	18	0	52	12
Corporate
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 1	$ 0	$ 15	$ 12