Equity - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Cumulative translation adjustment - net of taxes	$ (3,933)	$ (3,993)
Derivatives - net of taxes	72	75
Pension / OPEB (net of $284 million and $305 million tax benefit in March 31, 2022 and December 31, 2021, respectively)	(1,077)	(1,130)
Accumulated other comprehensive income (loss)	(4,938)	(5,048)
Pension / OPEB funded status obligation, tax benefit	284	305
Americas
Segment Reporting Information [Line Items]
Cumulative translation adjustment - net of taxes	(3,652)	(3,985)
EMEA
Segment Reporting Information [Line Items]
Cumulative translation adjustment - net of taxes	(402)	94
APAC
Segment Reporting Information [Line Items]
Cumulative translation adjustment - net of taxes	162	154
Engineering
Segment Reporting Information [Line Items]
Cumulative translation adjustment - net of taxes	(100)	24
Other
Segment Reporting Information [Line Items]
Cumulative translation adjustment - net of taxes	$ 59	$ (280)