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Revenue (Tables) | 6 Months Ended
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Jun. 30, 2023
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 June 30, |  | Six Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Domestic (U.S. and Canada) | $ | 8,417 |  |  | $ | 7,819 |  |  | $ | 15,584 |  |  | $ | 12,905 |
Atlantic (including Europe, Africa, India and Middle East destinations) | 3,229 |  |  | 2,481 |  |  | 5,061 |  |  | 3,570 |
Latin America | 1,273 |  |  | 1,195 |  |  | 2,589 |  |  | 2,104 |
Pacific | 1,259 |  |  | 617 |  |  | 2,373 |  |  | 1,099 |
Total | $ | 14,178 |  |  | $ | 12,112 |  |  | $ | 25,607 |  |  | $ | 19,678 |
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 June 30, |  | Six Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Total Frequent flyer deferred revenue - beginning balance | $ | 6,860 |  |  | $ | 6,417 |  |  | $ | 6,675 |  |  | $ | 6,282 |
Total miles awarded | 902 |  |  | 666 |  |  | 1,649 |  |  | 1,143 |
Travel miles redeemed | (712) |  |  | (566) |  |  | (1,243) |  |  | (888) |
Non-travel miles redeemed | (26) |  |  | (22) |  |  | (57) |  |  | (42) |
Total Frequent flyer deferred revenue - ending balance | $ | 7,024 |  |  | $ | 6,495 |  |  | $ | 7,024 |  |  | $ | 6,495 |

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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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