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MILEAGE PLAN | 6 Months Ended
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Jun. 30, 2016
MILEAGE PLAN [Abstract] |
MILEAGE PLAN | MILEAGE PLAN Alaska's Mileage Plan liabilities and deferrals on the consolidated balance sheets (in millions):
| June 30, 2016 |  | December 31, 2015
Current Liabilities: |  |  |
Other accrued liabilities | $ | 391 |  |  | $ | 368 |
Other Liabilities and Credits: |  |  |
Deferred revenue | 477 |  |  | 427 |
Other liabilities | 19 |  |  | 19 |
Total | $ | 887 |  |  | $ | 814 |
Alaska's Mileage Plan revenue included in the consolidated statements of operations (in millions):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Passenger revenues | $ | 73 |  |  | $ | 69 |  |  | $ | 143 |  |  | $ | 134 |
Other - net revenues | 108 |  |  | 82 |  |  | 211 |  |  | 159 |
Total | $ | 181 |  |  | $ | 151 |  |  | $ | 354 |  |  | $ | 293 |

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- Definition MILEAGE PLAN [Abstract] + References No definition available. + Details
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Namespace Prefix: | alk_
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- Definition Mileage Plan Disclosure [Text Block] + References No definition available. + Details
Name: | alk_MileagePlanDisclosureTextBlock
Namespace Prefix: | alk_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration