Revenue (Tables)

3 Months Ended

Mar. 31, 2023

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, 2023 and 2022:

	Three months ended March 31,
(in millions)	2023		2022
Passenger non-loyalty	$	4,082	$	3,364
Passenger loyalty - air transportation	825		624
Passenger ancillary sold separately	198		147
Total passenger revenues	$	5,105	$	4,135

Rollforward of Air Traffic Liability

As of March 31, 2023, and December 31, 2022, 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 unaudited Condensed Consolidated Balance Sheet were as follows:

	Balance as of
(in millions)	March 31, 2023		December 31, 2022
Air traffic liability - passenger travel and ancillary passenger services	$	4,007	$	3,061
Air traffic liability - loyalty program	5,190		5,189
Total Air traffic liability	$	9,197	$	8,250

Rollforwards of the Company's Air traffic liability - loyalty program for the three months ended March 31, 2023 and 2022 were as follows (in millions):

	Three months ended March 31,
	2023		2022
Air traffic liability - loyalty program - beginning balance	$	5,189	$	4,789
Amounts deferred associated with points awarded	846		736
Revenue recognized from points redeemed - Passenger	(825)		(624)
Revenue recognized from points redeemed - Other	(20)		(17)
Air traffic liability - loyalty program - ending balance	$	5,190	$	4,884

Rollforwards of the amounts included in Air traffic liability as of March 31, 2023 and 2022 were as follows (in millions):

	Air traffic liability
Balance at December 31, 2022	$	8,250
Current period sales (passenger travel, ancillary services, flight loyalty, and partner loyalty)	6,072
Revenue from amounts included in contract liability opening balances	(2,568)
Revenue from current period sales	(2,557)
Balance at March 31, 2023	$	9,197

	Air traffic liability
Balance at December 31, 2021	$	7,725
Current period sales (passenger travel, ancillary services, flight loyalty, and partner loyalty)	5,038
Revenue from amounts included in contract liability opening balances	(1,881)
Revenue from current period sales	(2,272)
Balance at March 31, 2022	$	8,610