Segment Information - Capital Expenditures and Depreciation and Amortization by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 278	$ 340	$ 570	$ 694
Operating segments
Segment Reporting Information [Line Items]
Depreciation and amortization	273	333	558	680
Operating segments | Oilfield Services
Segment Reporting Information [Line Items]
Depreciation and amortization	195	248	396	497
Operating segments | OFE
Segment Reporting Information [Line Items]
Depreciation and amortization	26	34	58	78
Operating segments | Turbo- machinery & Process Solutions
Segment Reporting Information [Line Items]
Depreciation and amortization	30	27	60	55
Operating segments | Digital Solutions
Segment Reporting Information [Line Items]
Depreciation and amortization	22	24	43	49
Corporate
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 5	$ 7	$ 12	$ 15