REVENUE (Tables)

12 Months Ended

Dec. 31, 2022

Revenue from Contract with Customer [Abstract]

Disaggregation of Passenger Revenue

The following table provides the components of Passenger revenue recognized for the years ended December 31, 2022, 2021, and 2020:

	Year ended December 31,
(in millions)	2022		2021		2020
Passenger non-loyalty	$	17,645	$	11,377	$	6,303
Passenger loyalty - air transportation	3,028		2,136		1,003
Passenger ancillary sold separately	735		553		359
Total passenger revenues	$	21,408	$	14,066	$	7,665

Rollforward of Air Traffic Liability

As of the years ended December 31, 2022 and 2021, the components of Air traffic liability, including contract liabilities based on tickets sold and unused flight credits available to the Customer, both of which are net of recorded breakage, and loyalty points available for redemption, within the Consolidated Balance Sheet were as follows:

	Balance as of
(in millions)	December 31, 2022		December 31, 2021
Air traffic liability - passenger travel and ancillary passenger services	$	3,061	$	2,936
Air traffic liability - loyalty program	5,189		4,789
Total Air traffic liability	$	8,250	$	7,725

Rollforwards of the Company's Air traffic liability - loyalty program for the years ended December 31, 2022 and 2021 were as follows (in millions):

	Year ended December 31,
	2022		2021
Air traffic liability - loyalty program - beginning balance	$	4,789	$	4,447
Amounts deferred associated with points awarded	3,506		2,523
Revenue recognized from points redeemed - Passenger	(3,028)		(2,136)
Revenue recognized from points redeemed - Other	(78)		(45)
Air traffic liability - loyalty program - ending balance	$	5,189	$	4,789

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 December 31, 2022 and 2021 were as follows (in millions):

	Air traffic liability
Balance at December 31, 2021	$	7,725
Current period sales (passenger travel, ancillary services, flight loyalty, and partner loyalty)	22,012
Revenue from amounts included in contract liability opening balances	(4,976)
Revenue from current period sales	(16,511)
Balance at December 31, 2022	$	8,250

	Air traffic liability
Balance at December 31, 2020	$	7,133
Current period sales (passenger travel, ancillary services, flight loyalty, and partner loyalty)	14,702
Revenue from amounts included in contract liability opening balances	(2,945)
Revenue from current period sales	(11,165)
Balance at December 31, 2021	$	7,725