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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2024
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 (as defined by the U.S. Department of Transportation) (in millions):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Domestic (U.S. and Canada) | $ | 8,648 |  |  | $ | 8,379 |  |  | $ | 25,082 |  |  | $ | 23,963 |
Atlantic | 3,432 |  |  | 3,543 |  |  | 8,542 |  |  | 8,604 |
Latin America | 1,232 |  |  | 1,184 |  |  | 4,023 |  |  | 3,773 |
Pacific | 1,531 |  |  | 1,378 |  |  | 4,721 |  |  | 3,751 |
Total | $ | 14,843 |  |  | $ | 14,484 |  |  | $ | 42,368 |  |  | $ | 40,091 |
Schedule of Roll Forward of Frequent Flyer Deferred Revenue | The table below presents a roll forward of Frequent flyer deferred revenue (in millions):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Total Frequent flyer deferred revenue - beginning balance | $ | 7,353 |  |  | $ | 7,024 |  |  | $ | 7,143 |  |  | $ | 6,675 |
Total miles awarded | 884 |  |  | 816 |  |  | 2,643 |  |  | 2,465 |
Travel miles redeemed | (842) |  |  | (740) |  |  | (2,325) |  |  | (1,983) |
Non-travel miles redeemed | (24) |  |  | (24) |  |  | (90) |  |  | (81) |
Total Frequent flyer deferred revenue - ending balance | $ | 7,371 |  |  | $ | 7,076 |  |  | $ | 7,371 |  |  | $ | 7,076 |

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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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