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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2019
Revenue from Contract with Customer [Abstract] |
Operating Revenue by Geographic Region | The following table presents operating revenue by geographic region (in millions):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Domestic (U.S. and Canada) | $ | 7,094 |  |  | $ | 6,762 |  |  | $ | 20,056 |  |  | $ | 18,927 |
Atlantic | 2,103 |  |  | 2,073 |  |  | 5,627 |  |  | 5,427 |
Pacific | 1,280 |  |  | 1,339 |  |  | 3,867 |  |  | 3,855 |
Latin America | 903 |  |  | 829 |  |  | 2,821 |  |  | 2,603 |
Total | $ | 11,380 |  |  | $ | 11,003 |  |  | $ | 32,371 |  |  | $ | 30,812 |
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,
| 2019 |  | 2018 |  | 2019 |  | 2018
Total Frequent flyer deferred revenue - beginning balance | $ | 5,198 |  |  | $ | 4,989 |  |  | $ | 5,005 |  |  | $ | 4,783 |
Miles awarded | 662 |  |  | 616 |  |  | 1,951 |  |  | 1,826 |
Travel miles redeemed (Passenger revenue) | (607 | ) |  | (580 | ) |  | (1,634 | ) |  | (1,508 | )
Non-travel miles redeemed (Other operating revenue) | (34 | ) |  | (38 | ) |  | (103 | ) |  | (114 | )
Total Frequent flyer deferred revenue - ending balance | $ | 5,219 |  |  | $ | 4,987 |  |  | $ | 5,219 |  |  | $ | 4,987 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + 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=118956577&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=118956577&loc=SL49130545-203045 + Details
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