Other Current Assets (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses	$ 23	$ 14
Income tax receivable	3	3
Passenger and other taxes receivable	2	9
Other	20	14
Total other current assets	$ 48	$ 40