Contracts with Customers	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Contracts with Customers	CONTRACTS WITH CUSTOMERSOur current and noncurrent liability for guest loyalty program increased by $137 million, to $6,731 million at March 31, 2023, from $6,594 million at December 31, 2022, primarily reflecting an increase in points earned by members. This includes a $30 million reclassification from deferred revenue to the liability for guest loyalty program primarily due to points that were earned during the period by members using our U.S.-issued co-branded credit cards, which were prepaid by the financial institutions in 2020. The increase was partially offset by $745 million of revenue recognized in the 2023 first quarter, that was deferred as of December 31, 2022. The current portion of our liability for guest loyalty program increased compared to December 31, 2022, due to higher estimated redemptions in the short-term.Our allowance for credit losses was $194 million at March 31, 2023 and $191 million at December 31, 2022