OPERATING SEGMENT INFORMATION, ASSETS (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Total assets	$ 14,210	$ 13,951
Alaska Airlines [Member]
Total assets	19,684	19,258
Horizon [Member]
Total assets	1,125	1,212
Consolidating and Other [Member]
Total assets	$ (6,599)	$ (6,519)

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details