Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

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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+ Details

Revenue - Passenger Revenue Breakout (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Total passenger revenues	$ 8,432	$ 7,244	$ 15,682	$ 13,672
Breakage Revenue Reversal
Disaggregation of Revenue [Line Items]
Total passenger revenues	(285)
Passenger
Disaggregation of Revenue [Line Items]
Total passenger revenues	7,745	6,627	14,337	12,438
Passenger non-loyalty
Disaggregation of Revenue [Line Items]
Total passenger revenues	6,104	5,448	11,292	10,214
Passenger loyalty - air transportation
Disaggregation of Revenue [Line Items]
Total passenger revenues	766	870	1,454	1,670
Passenger ancillary sold separately
Disaggregation of Revenue [Line Items]
Total passenger revenues	$ 875	$ 309	$ 1,591	$ 554