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Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

The following table provides the revenue recognized by revenue source for the years ended December 31, 2020, 2019, and 2018 (in millions):

						2020						2019						2018
Passenger revenue
Passenger travel						$	2,551					$	7,395					$	7,061
Loyalty revenue - air transportation						182						391						320
Other revenue
Loyalty revenue						168						201						168
Other revenue						56						107						109
Total revenue						$	2,957					$	8,094					$	7,658

Contract with customer, asset and liability

Our contract liabilities primarily consist of ticket sales for which transportation has not yet been provided, unused credits available to customers, and outstanding loyalty points available for redemption (in millions):

						December 31, 2020						December 31, 2019
Air traffic liability - passenger travel						$	964					$	929
Air traffic liability - loyalty program (air transportation)						733						661
Deferred revenue						41						10
Total						$	1,738					$	1,600

The table below presents the activity of the current and non-current air traffic liability for our loyalty program, and includes points earned and sold to participating companies (in millions):

Balance at December 31, 2018			$	580
TrueBlue® points redeemed			(391)
TrueBlue® points earned and sold			472
Balance at December 31, 2019			661
TrueBlue® points redeemed			(182)
TrueBlue® points earned and sold			254
Balance at December 31, 2020			$	733

X

- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

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- References

No definition available.

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