CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Operating Revenues
Passenger, Mainline	$ 1,057	$ 1,030	$ 2,977	$ 2,858
Passenger, Regional	240	219	638	605
Total passenger revenue	1,297	1,249	3,615	3,463
Freight and mail	30	32	83	88
Other - net	188	184	523	511
Total Operating Revenues	1,515	1,465	4,221	4,062
Operating Expenses
Wages and benefits	312	279	923	832
Variable incentive pay	32	30	90	84
Aircraft fuel, including hedging gains and losses	245	394	741	1,112
Aircraft maintenance	67	58	182	166
Aircraft rent	26	27	78	84
Landing fees and other rentals	80	74	217	207
Contracted services	74	66	209	188
Selling expenses	53	55	160	154
Depreciation and amortization	81	75	236	218
Food and beverage service	30	24	83	68
Other	82	67	259	229
Total Operating Expenses	1,082	1,149	3,178	3,342
Operating Income	433	316	1,043	720
Nonoperating Income (Expense)
Interest income	5	5	16	15
Interest expense	(10)	(12)	(32)	(36)
Interest capitalized	9	5	25	14
Other - net	0	2	1	20
Nonoperating Income (Expense)	4	0	10	13
Income before income tax	437	316	1,053	733
Income tax expense	163	118	396	276
Net Income	$ 274	$ 198	$ 657	$ 457
Basic Earnings Per Share (usd per share)	$ 2.15	$ 1.47	$ 5.08	$ 3.35
Diluted Earnings Per Share (usd per share)	$ 2.14	$ 1.45	$ 5.05	$ 3.31
Shares used for computation:
Basic shares (shares)	127,308	134,865	129,231	136,482
Diluted shares (shares)	128,205	136,158	130,200	137,825
Cash dividend declared per share (usd per share)	$ 0.20	$ 0.125	$ 0.6	$ 0.375