Accounts Payable and Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Accounts Payable and Other Current Liabilities [Abstract]
Short-term operating lease liabilities	$ 512	$ 479
Accounts payable	402	378
Accrued sales and use taxes	216	223
Accrued advertising and marketing	154	191
Accrued payroll and related	121	195
Public liability and property damage insurance liabilities – current	176	178
Other	564	562
Accounts payable and other current liabilities	$ 2,145	$ 2,206