Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Accounts and notes receivable, net, allowance for credit losses	$ 200	$ 187
Provision for credit losses	19
Accrued Expenses and Other
Disaggregation of Revenue [Line Items]
Liability for guest loyalty program	333	346
Loyalty Program
Disaggregation of Revenue [Line Items]
Change in contract with customer liability	118
Contract with customer liability	6,589	6,471
Reclassification of deferred revenue to liability for guest loyalty program	61
Deferred revenue recognized	567
Liability for guest loyalty program	2,626	2,522
Deferred revenue
Disaggregation of Revenue [Line Items]
Change in contract with customer liability	(73)
Contract with customer liability	1,454	$ 1,527
Deferred revenue recognized	$ 92