Financial Instruments (Effect Of Derivative Instruments On Statements Of Operations) (Details) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in condensed consolidated statements of operations	$ 2,000,000		$ (31,000,000)				$ (23,000,000)
Fuel Derivative Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) reclassified from accumulated OCI into income	(5,000,000)	[1]	(13,000,000)	[1]	(12,000,000)	[1]	(12,000,000)	[1]
Amount of gain (loss) recognized in income on derivative	7,000,000	[2]	(18,000,000)	[2]	12,000,000	[2]	(11,000,000)	[2]
Amount of gain (loss) recognized in condensed consolidated statements of operations	2,000,000	[3]	(31,000,000)	[3]	0	[3]	(23,000,000)	[3]
Amount of gain (loss) recognized in OCI on derivative	28,000,000		(43,000,000)		(22,000,000)		(58,000,000)
AA [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in condensed consolidated statements of operations	2,000,000		(31,000,000)				(23,000,000)
AA [Member] | Fuel Derivative Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) reclassified from accumulated OCI into income	(5,000,000)	[1]	(13,000,000)	[1]	(12,000,000)	[1]	(12,000,000)	[1]
Amount of gain (loss) recognized in income on derivative	7,000,000	[2]	(18,000,000)	[2]	12,000,000	[2]	(11,000,000)	[2]
Amount of gain (loss) recognized in condensed consolidated statements of operations	2,000,000	[3]	(31,000,000)	[3]	0	[3]	(23,000,000)	[3]
Amount of gain (loss) recognized in OCI on derivative	28,000,000		(43,000,000)		(22,000,000)		(58,000,000)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Fuel Derivative Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) reclassified from accumulated OCI into income	5,000,000	[1]	13,000,000	[1]	12,000,000	[1]	12,000,000	[1]
Amount of gain (loss) recognized in OCI on derivative	23,000,000	[1]	(56,000,000)	[1]	(34,000,000)	[1]	(70,000,000)	[1]
Reclassification out of Accumulated Other Comprehensive Income [Member] | AA [Member] | Fuel Derivative Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) reclassified from accumulated OCI into income	5,000,000	[1]	13,000,000	[1]	12,000,000	[1]	12,000,000	[1]
Amount of gain (loss) recognized in OCI on derivative	$ 23,000,000	[1]	$ (56,000,000)	[1]	$ (34,000,000)	[1]	$ (70,000,000)	[1]

[1] Includes the effective portion of hedge gain (loss)

[2] Includes the ineffective portion of hedge gain (loss)

[3] Includes the effective and ineffective portion of hedge gain (loss)