Revenue (Tables)

6 Months Ended

Jun. 30, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of Passenger Revenue

The following table provides the components of Passenger revenue recognized for the three and six months ended June 30, 2023 and 2022:

	Three months ended June 30,				Six months ended June 30,
(in millions)	2023		2022		2023		2022
Passenger non-loyalty	$	5,183	$	5,118	$	9,265	$	8,482
Passenger loyalty - air transportation	989		821		1,814		1,445
Passenger ancillary sold separately	237		180		435		327
Total passenger revenues	$	6,409	$	6,119	$	11,514	$	10,254

Rollforward of Air Traffic Liability

As of June 30, 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)	June 30, 2023		December 31, 2022
Air traffic liability - passenger travel and ancillary passenger services	$	3,980	$	3,061
Air traffic liability - loyalty program	5,079		5,189
Total Air traffic liability	$	9,059	$	8,250

Rollforwards of the Company's "Air traffic liability - loyalty program" for the three and six months ended June 30, 2023 and 2022 were as follows (in millions):

	Three months ended June 30,				Six months ended June 30,
	2023		2022		2023		2022
Air traffic liability - loyalty program - beginning balance	$	5,190	$	4,884	$	5,189	$	4,789
Amounts deferred associated with points awarded	903		842		1,750		1,579
Revenue recognized from points redeemed - Passenger	(989)		(821)		(1,814)		(1,445)
Revenue recognized from points redeemed - Other	(25)		(21)		(46)		(39)
Air traffic liability - loyalty program - ending balance	$	5,079	$	4,884	$	5,079	$	4,884

Rollforwards of the amounts included in Air traffic liability as of June 30, 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)	12,369
Revenue from amounts included in contract liability opening balances	(4,170)
Revenue from current period sales	(7,390)
Balance at June 30, 2023	$	9,059

	Air traffic liability
Balance at December 31, 2021	$	7,725
Current period sales (passenger travel, ancillary services, flight loyalty, and partner loyalty)	11,086
Revenue from amounts included in contract liability opening balances	(3,029)
Revenue from current period sales	(7,264)
Balance at June 30, 2022	$	8,518