Condensed Consolidated Statement of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
OPERATING REVENUES:
Passenger	$ 4,716	$ 4,564	$ 13,746	$ 13,249
Freight	44	45	134	128
Special revenue adjustment	172	0	172	0
Other	386	191	791	600
Total operating revenues	5,318	4,800	14,843	13,977
OPERATING EXPENSES:
Salaries, wages, and benefits	1,699	1,363	4,725	4,044
Fuel and oil	936	1,386	2,818	4,125
Maintenance materials and repairs	259	248	729	734
Aircraft rentals	60	71	179	227
Landing fees and other rentals	303	289	887	849
Depreciation and amortization	258	238	751	687
Acquisition and integration	6	23	32	78
Other operating expenses	572	568	1,632	1,628
Total operating expenses	4,093	4,186	11,753	12,372
OPERATING INCOME	1,225	614	3,090	1,605
OTHER EXPENSES (INCOME):
Interest expense	31	31	92	97
Capitalized interest	(9)	(6)	(23)	(18)
Interest income	(2)	(2)	(5)	(5)
Other (gains) losses, net	272	66	394	16
Total other expenses (income)	292	89	458	90
INCOME BEFORE INCOME TAXES	933	525	2,632	1,515
PROVISION FOR INCOME TAXES	349	196	987	569
NET INCOME	$ 584	$ 329	$ 1,645	$ 946
NET INCOME PER SHARE, BASIC	$ 0.89	$ 0.48	$ 2.47	$ 1.37
NET INCOME PER SHARE, DILUTED	$ 0.88	$ 0.48	$ 2.45	$ 1.36
COMPREHENSIVE INCOME	$ 345	$ 126	$ 1,480	$ 857
BASIC WEIGHTED AVERAGE SHARES OUTSTANDING
Basic	655	683	665	690
DILUTED WEIGHTED AVERAGE SHARES OUTSTANDING
Diluted	663	691	673	699
Cash dividends declared per common share	$ 0.075	$ 0.060	$ 0.210	$ 0.160