OPERATING SEGMENT INFORMATION (TABLES)

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Operating segment information is as follows (in millions):

	Three Months Ended March 31, 2013
	Alaska
	Mainline			Regional		Horizon			Consolidating			Air Group Adjusted(a)			Special Items			Consolidated
Operating revenues
Passenger
Mainline	$	796		$	—	$	—		$	—		$	796		$	—		$	796
Regional	—			182		—			—			182			—			182
Total passenger revenues	796			182		—			—			978			—			978
CPA revenues	—			—		94			(94		)	—			—			—
Freight and mail	25			1		—			—			26			—			26
Other-net	113			14		2			—			129			—			129
Total operating revenues	934			197		96			(94		)	1,133			—			1,133
Operating expenses
Operating expenses, excluding fuel	547			147		89			(95		)	688			—			688
Economic fuel(b)	323			46		—			—			369			12			381
Total operating expenses	870			193		89			(95		)	1,057			12			1,069
Nonoperating income (expense)
Interest income	4			—		—			—			4			—			4
Interest expense	(11		)	—		(3		)	(2		)	(16		)	—			(16		)
Other	6			—		—			1			7			—			7
	(1		)	—		(3		)	(1		)	(5		)	—			(5		)
Income (loss) before income tax	$	63		$	4	$	4		$	—		$	71		$	(12	)	$	59

	Three Months Ended March 31, 2012
	Alaska
	Mainline			Regional		Horizon			Consolidating			Air Group Adjusted(a)			Special Items			Consolidated
Operating revenues
Passenger
Mainline	$	723		$	—	$	—		$	—		$	723		$	—		$	723
Regional	—			173		—			—			173			—			173
Total passenger revenues	723			173		—			—			896			—			896
CPA revenues	—			—		87			(87		)	—			—			—
Freight and mail	23			1		—			—			24			—			24
Other-net	103			14		2			—			119			—			119
Total operating revenues	849			188		89			(87		)	1,039			—			1,039
Operating expenses
Operating expenses, excluding fuel	520			137		78			(87		)	648			—			648
Economic fuel(b)	294			45		—			—			339			(20		)	319
Total operating expenses	814			182		78			(87		)	987			(20		)	967
Nonoperating income (expense)
Interest income	5			—		—			—			5			—			5
Interest expense	(13		)	—		(4		)	—			(17		)	—			(17		)
Other	6			—		—			—			6			—			6
	(2		)	—		(4		)	—			(6		)	—			(6		)
Income (loss) before income tax	$	33		$	6	$	7		$	—		$	46		$	20		$	66

^(a)  The adjusted column represents the financial information that is reviewed by management to assess performance of operations and determine capital allocations and does not include certain charges.

^(b)  Represents adjustments to reflect the timing of gain or loss recognition resulting from mark-to-market fuel-hedge accounting.

Total assets were as follows (in millions):

	March 31, 2013			December 31, 2012
Alaska(a)	$	5,346		$	5,177
Horizon	825			823
Parent company	1,891			1,832
Elimination of inter-company accounts	(2,418		)	(2,327		)
Consolidated	$	5,644		$	5,505

^(a)  There are no assets associated with purchased capacity flying at Alaska.