Other Expense (Income), Net - Schedule of Other Expenses (Income), Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Income and Expenses [Abstract]
Non-service related net periodic benefit cost	$ 26	$ 17	$ 19
Interest income	(5)	(24)	(22)
Foreign currency (gains) losses, net	(11)	5	9
Net loss from asset sales	8	10	10
Deferred Compensation	10	24	(8)
Other, net	46	(1)	(38)
Total	$ 74	$ 31	$ (30)