Leases - Operating and Finance Lease Right of Use ("ROU") Assets and Lease Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Operating leases:
Operating lease ROU assets	$ 445	$ 478
Accrued expenses and other liabilities	151	159
Other non-current liabilities	391	436
Total operating lease liabilities	542	595
Finance leases:
Property and equipment, gross	118	101
Accumulated depreciation	(63)	(51)
Property and equipment, net	55	50
Short-term debt	23	23
Long-term debt	35	28
Total finance lease liabilities	$ 58	$ 51
Balance sheet location of operating lease ROU assets	Other assets	Other assets
Balance sheet location of current operating lease liabilities	Accrued expenses and other liabilities	Accrued expenses and other liabilities
Balance sheet location of non-current operating lease liabilities	Other non-current liabilities	Other non-current liabilities
Balance sheet location of non-current finance lease assets	Property and equipment	Property and equipment
Balance sheet location of current finance lease liabilities	Short-term debt	Short-term debt
Balance sheet location of non-current finance lease liabilities	Long-term debt	Long-term debt
Operating lease ROU assets, held for sale	$ 28	$ 27
Operating lease liabilities, held for sale	$ 22	$ 28