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Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Passenger Revenue

The following table provides the components of Passenger revenue recognized for the three months ended March 31, 2021 and March 31, 2020:

			Three months ended March 31,
(in millions)			2021						2020
Passenger non-loyalty			$	1,354					$	3,220
Passenger loyalty - air transportation			278						461
Passenger ancillary sold separately			80						164
Total passenger revenues			$	1,712					$	3,845

Components of Air Traffic Liability

As of March 31, 2021, and December 31, 2020, the components of Air traffic liability and Air traffic liability - noncurrent, including contract liabilities based on tickets sold, unused funds available to the Customer, and loyalty points available for redemption, net of expected spoilage, within the unaudited Condensed Consolidated Balance Sheet were as follows:

			Balance as of
(in millions)			March 31, 2021						December 31, 2020
Air traffic liability - passenger travel and ancillary passenger services			$	3,109					$	2,686
Air traffic liability - loyalty program			4,623						4,447
Total Air traffic liability			$	7,732					$	7,133

Rollforwards of the Company's Air traffic liability - loyalty program for the three months ended March 31, 2021 and March 31, 2020 were as follows (in millions):

			Three months ended March 31,
			2021						2020
Air traffic liability - loyalty program - beginning balance			$	4,447					$	3,385
Amounts deferred associated with points awarded			466						656
Revenue recognized from points redeemed - Passenger			(278)						(461)
Revenue recognized from points redeemed - Other			(12)						(19)
Air traffic liability - loyalty program - ending balance			$	4,623					$	3,561

Rollforward of Air Traffic Liability

Air traffic liability includes consideration received for ticket and loyalty related performance obligations which have not been satisfied as of a given date. Rollforwards of the amounts included in Air traffic liability as of March 31, 2021 and March 31, 2020 were as follows (in millions):

			Air traffic liability
Balance at December 31, 2020			$	7,133
Current period sales (passenger travel, ancillary services, flight loyalty, and partner loyalty)			2,324
Revenue from amounts included in contract liability opening balances			(743)
Revenue from current period sales			(982)
Balance at March 31, 2021			$	7,732

			Air traffic liability
Balance at December 31, 2019			$	5,510
Current period sales (passenger travel, ancillary services, flight loyalty, and partner loyalty)			4,565
Revenue from amounts included in contract liability opening balances			(1,949)
Revenue from current period sales			(1,915)
Balance at March 31, 2020			$	6,211

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 the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6935-107765

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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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