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Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue From Contract With Customer [Line Items]
Operating revenue	$ 12,877	$ 7,750	$ 32,555	$ 16,442
Advance Ticket Sales
Revenue From Contract With Customer [Line Items]
Revenue recognized	5,100	2,800	3,000	1,600
Ancillary Fees
Revenue From Contract With Customer [Line Items]
Operating revenue	900	700	2,400	1,500
Other Operating Revenue
Revenue From Contract With Customer [Line Items]
Operating revenue	726	594	2,026	1,501
Other Operating Revenue | Chase and Other Partner Agreements
Revenue From Contract With Customer [Line Items]
Operating revenue	$ 600	$ 500	$ 1,700	$ 1,300

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[Line Items] for Revenue From Contract With Customer [Table] [Table]

+ References

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

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-Publisher FASB
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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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