Leases - Schedule of Components of Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Total operating lease cost	$ 240	$ 232
Finance lease cost:
Interest on lease liabilities	1	1
Amortization of right-of-use assets	2	2
Total finance lease cost	3	3
Total lease cost	243	235
Variable lease costs	17	15
Short-term lease costs	8	5
Cost of sales, exclusive of depreciation and amortization
Lessee, Lease, Description [Line Items]
Total operating lease cost	34	34
Selling, general and administrative
Lessee, Lease, Description [Line Items]
Total operating lease cost	$ 206	$ 198