REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)

9 Months Ended

Sep. 30, 2021

Revenue Recognition [Abstract]

Disaggregation of Revenue

Passenger revenue recognized in the condensed consolidated statements of operations (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Passenger ticket revenue, including ticket breakage, net of taxes and fees	$	1,483	$	459	$	3,122	$	1,894
Passenger ancillary revenue	101		49		235		196
Mileage Plan passenger revenue	190		64		428		272
Total Passenger revenue	$	1,774	$	572	$	3,785	$	2,362

Mileage Plan™ revenue included in the condensed consolidated statements of operations (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Passenger revenue	$	190	$	64	$	428	$	272
Mileage Plan other revenue	120		84		332		266
Total Mileage Plan revenue	$	310	$	148	$	760	$	538

Cargo and other revenue included in the condensed consolidated statements of operations (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Cargo revenue	$	34	$	31	$	95	$	83
Other revenue	25		14		65		47
Total Cargo and other revenue	$	59	$	45	$	160	$	130

Contract with Customer Liabilities

The table below presents a roll forward of the total frequent flyer liability (in millions):

	Nine Months Ended September 30,
	2021		2020
Total Deferred revenue balance at January 1	$	2,277	$	1,990
Travel miles and companion certificate redemption - Passenger revenue	(428)		(272)
Miles redeemed on partner airlines - Other revenue	(30)		(21)
Increase in liability for mileage credits issued	531		486
Total Deferred revenue balance at September 30	$	2,350	$	2,183