GENERAL AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (TABLES)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Table Text Block]

Property and equipment are recorded at cost and depreciated using the straight-line method over their estimated useful lives less an estimated salvage value, which are as follows:



Aircraft and related flight equipment:
Boeing 737 aircraft	20 years
Bombardier Q400	15 years
Buildings	25-30 years
Minor building and land improvements	10 years
Capitalized leases and leasehold improvements	Shorter of lease term or estimated useful life
Computer hardware and software	3-5 years
Other furniture and equipment	5-10 years

Salvage values used for aircraft are 10% of the fair value, but as aircraft near the end of their useful lives, we update the salvage value estimates based on current market conditions and expected use of the aircraft. “Related flight equipment” includes rotable and repairable spare inventories, which are depreciated over the associated fleet life unless otherwise noted.

Liabilities from Mileage Plan [Table Text Block]

Alaska’s Mileage Plan™ deferred revenue and liabilities on the consolidated balance sheets (in millions):



	2014		2013
Current Liabilities:
Other accrued liabilities	$	343	$	314
Other Liabilities and Credits:
Deferred revenue	367		323
Other liabilities	20		19
Total	$	730	$	656

Revenue from Mileage Plan [Table Text Block]

Alaska’s Mileage Plan™ revenue included in the consolidated statements of operations (in millions):



	2014		2013		2012
Passenger revenues	$	246	$	208	$	183
Other-net revenues	295		256		209
Special mileage plan revenue^(a)	—		192		—
Total Mileage Plan revenues	$	541	$	656	$	392