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Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

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, 2021, 2020, and 2019 (in millions):

						2021						2020						2019
Passenger revenue
Passenger travel						$	5,304					$	2,551					$	7,395
Loyalty revenue - air transportation						305						182						391
Other revenue
Loyalty revenue						306						168						201
Other revenue						122						56						107
Total revenue						$	6,037					$	2,957					$	8,094

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, 2021						December 31, 2020
Air traffic liability - passenger travel						$	1,323					$	964
Air traffic liability - loyalty program (air transportation)						891						733
Deferred revenue(1)						613						92
Total						$	2,827					$	1,789

(1) Deferred revenue is included within other accrued liabilities and other liabilities on our consolidated balance sheets. The increase in deferred revenue was attributed to the initial cash payments received from our new Co-Branded Credit Card agreements which are deferred and recognized as revenue over the terms of the related contracts.

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, 2019			$	661
TrueBlue® points redeemed			(182)
TrueBlue® points earned and sold			254
Balance at December 31, 2020			733
TrueBlue® points redeemed			(305)
TrueBlue® points earned and sold			463
Balance at December 31, 2021			$	891

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- 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=123351226&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=123351226&loc=SL49130545-203045

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- References

No definition available.

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