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Revenue | 6 Months Ended
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Jun. 30, 2021
Revenue from Contract with Customer [Abstract] |
REVENUE | REVENUE Revenue by Geography. 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 |
Advance Ticket Sales. All tickets sold at any given point in time have travel dates through the next 12 months. The Company defers amounts related to future travel in its Advance ticket sales liability account. The Company's Advance ticket sales liability also includes credits issued to customers on electronic travel certificates ("ETCs") and future flight credits ("FFCs"), primarily for ticket cancellations, which can be applied towards a purchase of a new ticket. In February 2021, the Company extended the expiration dates for all tickets issued between May 1, 2019 and March 31, 2021 to March 31, 2022. As of June 30, 2021, the Company's Advance ticket sales liability included $2.6 billion related to these ETCs and FFCs. The Company is unable to estimate the amount of the ETCs and FFCs that will be used within the next 12 months and has classified the entire amount of the Advance ticket sales liability in current liabilities even though some of the ETCs could be used after the next 12 months. Also, the Company is unable to estimate the amount of the June 30, 2021 Advance ticket sales that will be recognized in revenue in 2021 compared to amounts refunded to customers or exchanged into ETCs. The Company records breakage revenue on the travel date for its estimate of tickets that will expire unused. To determine breakage, the Company uses its historical experience with refundable and nonrefundable expired tickets and other facts, such as recent aging trends, program changes and modifications that could affect the ultimate expiration patterns of tickets. Given the uncertainty of travel demand caused by COVID-19, a significant portion of the ETCs and FFCs may expire unused in future periods and get recognized as breakage. The Company will update its breakage estimates as future information is received. In the three and six months ended June 30, 2021, the Company recognized approximately $1.5 billion and $1.4 billion, respectively, of passenger revenue for tickets that were included in Advance ticket sales at the beginning of those periods. In the three and six months ended June 30, 2020, the Company recognized approximately $0.5 billion and $2.8 billion, respectively, of passenger revenue for tickets that were included in Advance ticket sales at the beginning of those periods. Ancillary Fees. The Company charges fees, separately from ticket sales, for certain ancillary services that are directly related to passengers' travel, such as baggage fees, premium seats, inflight amenities and other ticket-related fees. These ancillary fees are part of the travel performance obligation and, as such, are recognized as passenger revenue when the travel occurs. The Company recorded $499 million and $807 million of ancillary fees within passenger revenue in the three and six months ended June 30, 2021, respectively. The Company recorded $71 million and $776 million of ancillary fees within passenger revenue in the three and six months ended June 30, 2020, respectively. Frequent Flyer Accounting. 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 |
In the three and six months ended June 30, 2021, the Company recognized, in Other operating revenue, $449 million and $811 million, respectively, related to the marketing, advertising, non-travel miles redeemed (net of related costs) and other travel-related benefits of the mileage revenue associated with our various partner agreements including, but not limited to, our JPMorgan Chase Bank, N.A. co-brand agreement. The Company recognized $339 million and $869 million, respectively, in the three and six months ended June 30, 2020, related to those agreements. The portion related to the MileagePlus miles awarded of the total amounts received from our various partner agreements is deferred and presented in the table above as an increase to the frequent flyer liability. We determine the current portion of our frequent flyer liability based on expected redemptions in the next 12 months. Given the uncertainty in travel demand caused by COVID-19, we currently estimate a large percentage of award redemptions will occur beyond 12 months; however, this estimate may change as travel demand and award redemptions become clearer in future periods.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -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 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 + Details
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