Leases Lessee Disclosure - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Operating lease assets, net		$ 453	$ 450
Total lease assets, net		486	490
Current portion of operating lease liabilities		$ 128	$ 129
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]		Total accrued expenses and other current liabilities	Total accrued expenses and other current liabilities
Long-term operating lease liabilities		$ 417	$ 430
Non-current portion of finance lease liabilities		Other non-current liabilities	Other non-current liabilities
Total lease liabilities		$ 569	$ 591
Operating Lease, Weighted Average Remaining Lease Term		5 years 7 months 6 days	5 years 10 months 24 days
Finance Lease, Weighted Average Remaining Lease Term		2 years 8 months 12 days	2 years 9 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent		4.20%	4.60%
Finance Lease, Weighted Average Discount Rate, Percent		3.40%	3.70%
Finance Lease, Right-of-Use Asset, Accumulated Amortization		$ (45)	$ (40)
Property, Plant and Equipment
Lessee, Lease, Description [Line Items]
Property and equipment, net	[1]	$ 33	$ 40

[1] Finance lease assets are recorded net of accumulated amortization of $45 million and $40 million at December 31, 2021 and 2020, respectively.