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Geographic Information (Tables) | 12 Months Ended
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Dec. 31, 2019
Segment Reporting [Abstract] |
Summary of operating revenues by geographic regions | Operating revenues are allocated to geographic regions, as defined by the Department of Transportation, or DOT, based upon the origination and destination of each flight segment. As of December 31, 2019, we served 31 locations in the Caribbean and Latin American region, or Latin America as defined by the DOT. However, our management includes our three destinations in Puerto Rico and one destination in the U.S. Virgin Islands in our Caribbean and Latin America allocation of revenues. Therefore, we have reflected these locations within the Caribbean and Latin America region in the table below. Operating revenues by geographic regions for the years ended December 31 are summarized below (in millions):
|  | 2019 |  | 2018 |  | 2017
Domestic |  | $ | 5,633 |  |  | $ | 5,386 |  |  | $ | 4,999 |
Caribbean & Latin America |  | 2,461 |  |  | 2,272 |  |  | 2,013 |
Total |  | $ | 8,094 |  |  | $ | 7,658 |  |  | $ | 7,012 |

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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