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REVENUE RECOGNITION - Loyalty Program Liability (Details) - Loyalty program - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Loyalty program activity |  |
Current and noncurrent deferred revenue, beginning | $ 7,882 | $ 7,559
Miles earned | 999 | 658
Miles redeemed for air travel | (743) | (543)
Miles redeemed for non-air travel and other | (40) | (30)
Current and noncurrent deferred revenue, ending | $ 8,098 | $ 7,644

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- Definition Loyalty Program Liability Activity + References No definition available. + Details
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- Definition Loyalty Program Liability, Mileage Credits Earned + References No definition available. + Details
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- Definition Loyalty Program Liability, Non-Travel Mileage Credits Redeemed + References No definition available. + Details
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- Definition Loyalty Program Liability, Travel Mileage Credits Redeemed + References No definition available. + Details
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130532-203044 + Details
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- Details
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