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Revenue (Tables) | 3 Months Ended
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Mar. 31, 2019
Revenue from Contract with Customer [Abstract] |
Passenger Revenue by Geographic Region | The following table presents operating revenue by geographic region (in millions):
| Three Months Ended March 31,
| 2019 |  | 2018
Domestic (U.S. and Canada) | $ | 5,875 |  |  | $ | 5,476 |
Atlantic | 1,458 |  |  | 1,389 |
Pacific | 1,281 |  |  | 1,231 |
Latin America | 975 |  |  | 936 |
Total | $ | 9,589 |  |  | $ | 9,032 |
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,
| 2019 |  | 2018
Total Frequent flyer deferred revenue - beginning balance | $ | 5,005 |  |  | $ | 4,783 |
Miles awarded | 607 |  |  | 603 |
Travel miles redeemed (Passenger revenue) | (438 | ) |  | (409 | )
Non-travel miles redeemed (Other operating revenue) | (36 | ) |  | (40 | )
Total Frequent flyer deferred revenue - ending balance | $ | 5,138 |  |  | $ | 4,937 |

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