Condensed Consolidated Statement of Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
OPERATING REVENUES:
Passenger	$ 3,933	$ 3,838
Freight	40	39
Other	193	207
Total operating revenues	4,166	4,084
OPERATING EXPENSES:
Salaries, wages, and benefits	1,275	1,183
Fuel and oil	1,314	1,457
Maintenance materials and repairs	250	291
Aircraft rentals	81	93
Landing fees and other rentals	266	266
Depreciation and amortization	221	210
Acquisition and integration	18	13
Other operating expenses	526	501
Total operating expenses	3,951	4,014
OPERATING INCOME	215	70
OTHER EXPENSES (INCOME):
Interest expense	33	29
Capitalized interest	(7)	(5)
Interest income	(2)	(2)
Other (gains) losses, net	(53)	(46)
Total other expenses (income)	(29)	(24)
INCOME BEFORE INCOME TAXES	244	94
PROVISION FOR INCOME TAXES	92	35
NET INCOME	152	59
NET INCOME PER SHARE, BASIC	$ 0.22	$ 0.08
NET INCOME PER SHARE, DILUTED	$ 0.22	$ 0.08
COMPREHENSIVE INCOME	$ 143	$ 67
BASIC WEIGHTED AVERAGE SHARES OUTSTANDING
Basic	698	725
DILUTED WEIGHTED AVERAGE SHARES OUTSTANDING
Diluted	707	727
Cash dividends declared per common share	$ 0.0400	$ 0.0100