Condensed Consolidated Statement of Comprehensive Income (Loss) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
OPERATING REVENUES:
Total operating revenues	$ 6,728	$ 4,008	$ 11,422	$ 6,060
OPERATING EXPENSES, NET:
Salaries, wages, and benefits	2,220	1,825	4,450	3,395
Payroll support and voluntary Employee programs, net	0	(740)	0	(2,187)
Fuel and oil	1,636	803	2,640	1,272
Maintenance materials and repairs	210	222	420	395
Landing fees and airport rentals	388	403	733	716
Depreciation and amortization	325	315	649	627
Other operating expenses	791	586	1,523	1,049
Total operating expenses, net	5,570	3,414	10,415	5,267
OPERATING INCOME	1,158	594	1,007	793
OTHER EXPENSES (INCOME):
Interest expense	93	116	186	229
Capitalized interest	(11)	(8)	(20)	(19)
Interest income	(28)	(2)	(31)	(4)
Other (gains) losses, net	68	(14)	212	(61)
Total other expenses (income)	122	92	347	145
INCOME BEFORE INCOME TAXES	1,036	502	660	648
PROVISION FOR INCOME TAXES	276	154	178	185
NET INCOME	$ 760	$ 348	$ 482	$ 463
Net income per share, basic (in USD per share)	$ 1.29	$ 0.59	$ 0.83	$ 0.78
Net income per share, diluted (in USD per share)	$ 1.20	$ 0.57	$ 0.77	$ 0.76
COMPREHENSIVE INCOME	$ 674	$ 544	$ 899	$ 723
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	593	591	593	591
Diluted (in shares)	635	615	640	612
Passenger
OPERATING REVENUES:
Total operating revenues	$ 6,119	$ 3,569	$ 10,254	$ 5,282
Freight
OPERATING REVENUES:
Total operating revenues	47	50	89	92
Other
OPERATING REVENUES:
Total operating revenues	$ 562	$ 389	$ 1,079	$ 686