Statements of Consolidated Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Operating revenue:
Passenger-Mainline	$ 6,829	$ 6,944	$ 12,767	$ 12,898
Passenger-Regional	1,839	1,824	3,460	3,378
Total passenger revenue	8,668	8,768	16,227	16,276
Cargo	236	265	463	529
Other operating revenue	1,097	906	2,032	1,736
Total revenue	10,001	9,939	18,722	18,541
Operating expense:
Aircraft fuel	3,068	3,408	6,118	6,637
Salaries and related costs	2,175	2,024	4,302	3,921
Regional capacity purchase	628	643	1,216	1,259
Landing fees and other rent	507	503	1,004	972
Aircraft maintenance materials and outside repairs	480	432	918	839
Depreciation and amortization	425	378	833	758
Distribution expenses	347	345	675	682
Aircraft rent	235	251	475	502
Special charges	52	206	144	370
Other operating expenses	1,314	1,174	2,531	2,297
Total operating expenses	9,231	9,364	18,216	18,237
Operating income	770	575	506	304
Nonoperating income (expense):
Interest expense	(194)	(213)	(395)	(429)
Interest capitalized	12	9	23	17
Interest income	6	7	11	12
Miscellaneous, net	(123)	(38)	(100)	(11)
Total other income (expense)	(299)	(235)	(461)	(411)
Income (loss) before income taxes	471	340	45	(107)
Income tax expense (benefit)	2	1	(7)	2
Net income (loss)	469	339	52	(109)
Earnings (loss) per share, basic	$ 1.37	$ 1.02	$ 0.15	$ (0.33)
Earnings (loss) per share, diluted	$ 1.21	$ 0.89	$ 0.15	$ (0.33)
United Airlines, Inc.
Operating revenue:
Passenger-Mainline	6,829	6,944	12,767	12,898
Passenger-Regional	1,839	1,824	3,460	3,378
Total passenger revenue	8,668	8,768	16,227	16,276
Cargo	236	265	463	529
Other operating revenue	1,099	907	2,036	1,739
Total revenue	10,003	9,940	18,726	18,544
Operating expense:
Aircraft fuel	3,068	3,408	6,118	6,637
Salaries and related costs	2,175	2,024	4,302	3,921
Regional capacity purchase	628	643	1,216	1,259
Landing fees and other rent	507	503	1,004	972
Aircraft maintenance materials and outside repairs	480	432	918	839
Depreciation and amortization	425	378	833	758
Distribution expenses	347	345	675	682
Aircraft rent	235	251	475	502
Special charges	52	206	144	370
Other operating expenses	1,313	1,173	2,530	2,295
Total operating expenses	9,230	9,363	18,215	18,235
Operating income	773	577	511	309
Nonoperating income (expense):
Interest expense	(188)	(216)	(391)	(433)
Interest capitalized	12	9	23	17
Interest income	6	7	11	12
Miscellaneous, net	(117)	(7)	(32)	35
Total other income (expense)	(287)	(207)	(389)	(369)
Income (loss) before income taxes	486	370	122	(60)
Income tax expense (benefit)	2	1		2
Net income (loss)	$ 484	$ 369	$ 122	$ (62)