Statements of Consolidated Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating revenue:
Passenger-Mainline	$ 5,848	$ 5,938
Passenger-Regional	1,536	1,621
Total passenger revenue	7,384	7,559
Cargo	209	227
Other operating revenue	1,103	935
Total revenue	8,696	8,721
Operating expense:
Aircraft fuel	2,917	3,050
Salaries and related costs	2,153	2,127
Regional capacity purchase	559	588
Landing fees and other rent	572	497
Aircraft maintenance materials and outside repairs	458	438
Depreciation and amortization	409	408
Distribution expenses	318	328
Aircraft rent	224	240
Special charges	52	92
Other operating expenses	1,383	1,217
Total operating expenses	9,045	8,985
Operating loss	(349)	(264)
Nonoperating income (expense):
Interest expense	(187)	(201)
Interest capitalized	14	11
Interest income	5	5
Miscellaneous, net	(89)	23
Total other expense	(257)	(162)
Loss before income taxes	(606)	(426)
Income tax expense (benefit)	3	(9)
Net loss	(609)	(417)
Loss per share, basic	$ (1.66)	$ (1.26)
Loss per share, diluted	$ (1.66)	$ (1.26)
United Airlines, Inc.
Operating revenue:
Passenger-Mainline	5,848	5,938
Passenger-Regional	1,536	1,621
Total passenger revenue	7,384	7,559
Cargo	209	227
Other operating revenue	1,103	937
Total revenue	8,696	8,723
Operating expense:
Aircraft fuel	2,917	3,050
Salaries and related costs	2,153	2,127
Regional capacity purchase	559	588
Landing fees and other rent	572	497
Aircraft maintenance materials and outside repairs	458	438
Depreciation and amortization	409	408
Distribution expenses	318	328
Aircraft rent	224	240
Special charges	52	92
Other operating expenses	1,375	1,217
Total operating expenses	9,037	8,985
Operating loss	(341)	(262)
Nonoperating income (expense):
Interest expense	(189)	(203)
Interest capitalized	14	11
Interest income	5	5
Miscellaneous, net	(66)	85
Total other expense	(236)	(102)
Loss before income taxes	(577)	(364)
Income tax expense (benefit)	3	(2)
Net loss	$ (580)	$ (362)