Other Expense (Income), Net - Schedule (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Income and Expenses [Abstract]
Non-service related net periodic benefit cost	$ 5	$ 4	$ 11	$ 8
Interest income	0	(5)	(4)	(15)
Foreign currency (gains) losses, net	(7)	(4)	(7)	1
Net loss from asset sales	2	5	4	7
Deferred compensation	7	5	(3)	15
Other, net	9	1	(9)	2
Nonoperating Income (Expense)	$ 16	$ 6	$ (8)	$ 18