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GENERAL AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023
Accounting Policies [Abstract] |  |
Organization and Basis of Presentation | Organization and basis of presentation The unaudited Condensed Consolidated Financial Statements include the accounts of Air Group, or the Company, and its primary subsidiaries, Alaska, Horizon, and Hawaiian Airlines (starting September 18, 2024). Purchase accounting impacts resulting from the Hawaiian Airlines acquisition are included as of September 18, 2024. Prior periods do not include Hawaiian results. The unaudited Condensed Consolidated Financial Statements also include McGee Air Services (McGee), a ground services subsidiary of Alaska, and other immaterial business units. All intercompany balances and transactions have been eliminated. These financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information. Consistent with these requirements, this Form 10-Q does not include all the information required by GAAP for complete financial statements. It should be read in conjunction with the consolidated financial statements and accompanying notes in the Form 10-K for the year ended December 31, 2023. In the opinion of management, all adjustments have been made that are necessary to fairly present the Company’s financial position as of September 30, 2024 and the results of operations for the three and nine months ended September 30, 2024 and 2023. Such adjustments were of a normal recurring nature. Certain rows, columns, figures, or percentages may not recalculate due to rounding. In preparing these statements, the Company is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent liabilities, as well as the reported amounts of revenue and expenses, including impairment charges. Due to seasonal variations in the demand for air travel, the volatility of aircraft fuel prices, changes in global economic conditions, changes in the competitive environment, and other factors, operating results for the three and nine months ended September 30, 2024 are not necessarily indicative of operating results for the entire year. Goodwill and intangible assets, which were historically presented as one line item within the Condensed Consolidated Balance Sheets, are now presented as individual line items. This change was also made for the prior period in order to conform to the current period presentation. Refer to the notes below for further discussion on the Hawaiian Airlines acquisition, including certain impacts on our Condensed Consolidated Financial Statements. |
Supplier compensation [Line Items] |  |
Supplier Proceeds | $ 162 | $ 0

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- Definition Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). + References No definition available. + Details
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