Statements of Consolidated Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Net income (loss)	$ 1,132		$ 571		$ (723)
Other comprehensive income (loss), net change related to:
Employee benefit plans	(1,171)		1,626		(730)
Fuel derivative financial instruments	(510)		21		90
Investments and other	(6)		7		11
Comprehensive income (loss) adjustments	(1,687)	[1]	1,654	[1]	(629)	[1]
Total comprehensive income (loss), net	(555)		2,225		(1,352)
United Airlines, Inc.
Net income (loss)	1,114		654		(661)
Other comprehensive income (loss), net change related to:
Employee benefit plans	(1,171)		1,626		(730)
Fuel derivative financial instruments	(510)		21		90
Investments and other	(6)		8		12
Other			6
Comprehensive income (loss) adjustments	(1,687)		1,661		(628)
Total comprehensive income (loss), net	$ (573)		$ 2,315		$ (1,289)

[1] UAL and United amounts are substantially the same except for an additional $6 million of income tax benefit at United in 2013. In addition, United had additional gains related to investments and other of $1 million in both 2012 and 2013.