CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Operating Revenues
Passenger, Mainline	$ 960	$ 905	$ 2,651	$ 2,491
Passenger, Regional	208	198	582	559
Total passenger revenue	1,168	1,103	3,233	3,050
Freight and mail	32	30	88	85
Other - net	165	139	433	390
Special Revenue	192	0	192	0
Total Operating Revenues	1,557	1,272	3,946	3,525
Operating Expenses
Wages and benefits	285	255	806	771
Variable incentive pay	26	24	68	61
Aircraft fuel, including hedging gains and losses	363	337	1,115	1,087
Aircraft maintenance	54	56	187	160
Aircraft rent	29	29	89	86
Landing fees and other rentals	71	61	207	185
Contracted services	54	50	161	149
Selling expenses	47	46	137	131
Depreciation and amortization	67	66	203	195
Food and beverage service	22	20	63	58
Other	69	59	202	184
Total Operating Expenses	1,087	1,003	3,238	3,067
Operating Income	470	269	708	458
Nonoperating income (expense)
Interest income	5	5	14	15
Interest expense	(13)	(15)	(42)	(49)
Interest capitalized	6	4	15	12
Other - net	(5)	2	(4)	6
Nonoperating Income (Expense) Total	(7)	(4)	(17)	(16)
Income before income tax	463	265	691	442
Income tax expense	174	102	261	170
Net Income	$ 289	$ 163	$ 430	$ 272
Basic Earnings Per Share	$ 4.13	$ 2.30	$ 6.12	$ 3.83
Diluted Earnings Per Share	$ 4.08	$ 2.27	$ 6.04	$ 3.77
Shares used for computation:
Basic shares	69,780,000	70,963,000	70,152,000	70,852,000
Diluted shares	70,692,000	71,883,000	71,106,000	72,059,000
Common Stock, Dividends, Per Share, Declared	$ 0.20	$ 0.00	$ 0.20	$ 0.00