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REVENUE RECOGNITION (Tables) | 3 Months Ended
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Mar. 31, 2025
Revenue from Contract with Customer [Abstract] |
Schedule of Operating Revenue by Geographic Region | The table below presents the Company's operating revenue by principal geographic region (in millions):
| Three Months Ended March 31, |  |
| 2025 |  | 2024 |  |  |  |
Domestic (U.S. and Canada) | $ | 8,034 |  |  | $ | 7,673 |  |  |  |  |
Atlantic | 1,899 |  |  | 1,833 |  |  |  |  |
Latin America | 1,557 |  |  | 1,445 |  |  |  |  |
Pacific | 1,722 |  |  | 1,588 |  |  |  |  |
Total | $ | 13,213 |  |  | $ | 12,539 |  |  |  |  |
Schedule of Roll Forward of Frequent Flyer Deferred Revenue | The table below presents a roll forward of Frequent flyer deferred revenue (in millions):
| 2025 |  | 2024 |  |  |  |
Balance at January 1 | $ | 7,441 |  |  | $ | 7,143 |  |  |  |  |
Miles earned | 919 |  |  | 840 |  |  |  |  |
Travel miles redeemed | (730) |  |  | (665) |  |  |  |  |
Non-travel miles redeemed | (38) |  |  | (39) |  |  |  |  |
Balance at March 31 | $ | 7,591 |  |  | $ | 7,279 |  |  |  |  |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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