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Geographic Information | 12 Months Ended
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Dec. 31, 2019
Segment Reporting [Abstract] |
Geographic Information | Geographic Information Under the Segment Reporting topic of the Codification, disclosures are required for operating segments that are regularly reviewed by chief operating decision makers. Air transportation services accounted for substantially all of the Company’s operations in 2019, 2018 and 2017. 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 |
Our tangible assets primarily consist of our fleet of aircraft, which is deployed systemwide, with no individual aircraft dedicated to any specific route or region; therefore our assets do not require any allocation to a geographic area.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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