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Revenue (Tables) | 6 Months Ended
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Jun. 30, 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 June 30, |  | Six Months Ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Domestic (U.S. and Canada) | $ | 3,767 |  |  | $ | 925 |  |  | $ | 5,878 |  |  | $ | 6,003 |
Atlantic | 585 |  |  | 219 |  |  | 995 |  |  | 1,434 |
Pacific | 392 |  |  | 258 |  |  | 700 |  |  | 1,064 |
Latin America | 727 |  |  | 73 |  |  | 1,119 |  |  | 953 |
Total | $ | 5,471 |  |  | $ | 1,475 |  |  | $ | 8,692 |  |  | $ | 9,454 |
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,
| 2021 |  | 2020 |  | 2021 |  | 2020
Total Frequent flyer deferred revenue - beginning balance | $ | 6,109 |  |  | $ | 5,488 |  |  | $ | 5,975 |  |  | $ | 5,276 |
Total miles awarded | 360 |  |  | 228 |  |  | 632 |  |  | 787 |
Travel miles redeemed (Passenger revenue) | (267) |  |  | (34) |  |  | (390) |  |  | (356) |
Non-travel miles redeemed (Other operating revenue) | (17) |  |  | (12) |  |  | (32) |  |  | (37) |
Total Frequent flyer deferred revenue - ending balance | $ | 6,185 |  |  | $ | 5,670 |  |  | $ | 6,185 |  |  | $ | 5,670 |

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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=123351226&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=123351226&loc=SL49130545-203045 + Details
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