CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Revenue
Revenue	$ 14,239	$ 11,735	$ 10,426
Operating Expenses
Wages and benefits	4,763	3,588	3,041
Variable incentive pay	268	358	200
Aircraft fuel, including hedging gains and losses	2,879	2,506	2,641
Aircraft maintenance	912	620	488
Aircraft rent	250	207	208
Landing fees and other rentals	1,109	781	680
Contracted services	590	444	389
Selling expenses	407	349	303
Depreciation and amortization	795	583	451
Food and beverage service	383	287	241
Third-party regional carrier expense	272	243	218
Other	1,058	854	729
Special items - operating	250	345	443
Total Operating Expenses	13,936	11,165	10,032
Operating Income	303	570	394
Non-operating Income (Expense)
Interest income	94	101	80
Interest expense	(272)	(171)	(121)
Interest capitalized	37	29	27
Special items - net non-operating	0	16	(18)
Other - net	(16)	0	(39)
Total Non-operating Expense	(157)	(25)	(71)
Income Before Income Tax	146	545	323
Income tax expense	46	150	88
Net Income	$ 100	$ 395	$ 235
Basic earnings per share (in dollars per share)	$ 0.85	$ 3.13	$ 1.84
Diluted earnings per share (in dollars per share)	$ 0.83	$ 3.08	$ 1.83
Weighted Average Shares Outstanding used for computation:
Basic	118,171,000	126,136,000	127,375,000
Diluted	119,926,000	128,372,000	128,708,000
Passenger revenue
Operating Revenue
Revenue	$ 12,835	$ 10,654	$ 9,526
Passenger revenue | Passenger
Operating Revenue
Revenue	12,835	10,654	9,526
Loyalty Plan Revenue
Operating Revenue
Revenue	2,282	1,913	1,682
Loyalty Plan Revenue | Passenger
Operating Revenue
Revenue	1,427	1,180	1,034
Loyalty Plan Revenue | Loyalty program other
Operating Revenue
Revenue	855	733	648
Cargo and other revenue
Operating Revenue
Revenue	549	348	252
Cargo and other revenue | Cargo and Freight
Operating Revenue
Revenue	$ 549	$ 348	$ 252