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Revenue (Tables) | 3 Months Ended
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Mar. 31, 2021
Revenue from Contract with Customer [Abstract] |
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 March 31, |  |
| 2021 |  | 2020 |  |  |  |
Domestic (U.S. and Canada) | $ | 2,111 |  |  | $ | 5,078 |  |  |  |  |
Atlantic | 410 |  |  | 1,215 |  |  |  |  |
Pacific | 308 |  |  | 806 |  |  |  |  |
Latin America | 392 |  |  | 880 |  |  |  |  |
Total | $ | 3,221 |  |  | $ | 7,979 |  |  |  |  |
Roll Forward of Frequent Flyer Deferred Revenue | The table below presents a roll forward of Frequent flyer deferred revenue (in millions):
| Three Months Ended March 31, |  |
| 2021 |  | 2020 |  |  |  |
Total Frequent flyer deferred revenue - beginning balance | $ | 5,975 |  |  | $ | 5,276 |  |  |  |  |
Total miles awarded | 272 |  |  | 559 |  |  |  |  |
Travel miles redeemed (Passenger revenue) | (123) |  |  | (322) |  |  |  |  |
Non-travel miles redeemed (Other operating revenue) | (15) |  |  | (25) |  |  |  |  |
Total Frequent flyer deferred revenue - ending balance | $ | 6,109 |  |  | $ | 5,488 |  |  |  |  |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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