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Network
2407405 - Disclosure - INCOME TAXES - EFFECTIVE INCOME TAX RECONCILIATION (DETAILS)
(http://www.alaskaair.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000766421 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2012-01-01 - 2012-12-31
2011-01-01 - 2011-12-31
2010-01-01 - 2010-12-31
Income Tax Disclosure [Abstract]
 
 
 
U.S. federal tax rate
.35  
.35  
.35  
Income before income tax
514,000,000  
394,000,000  
406,000,000  
Expected tax expense
180,000,000  
138,000,000  
142,000,000  
Nondeductible expenses
3,000,000  
1,000,000  
2,000,000  
State income taxes
14,000,000  
10,000,000  
11,000,000  
Other—net
1,000,000  
0  
0  
Total tax expense related to income
198,000,000  
 
149,000,000  
 
155,000,000  
 
Effective tax rate
.385  
.379  
.381