REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)

6 Months Ended

Jun. 30, 2021

Revenue Recognition [Abstract]

Disaggregation of Revenue

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Passenger ticket revenue, including ticket breakage and net of taxes and fees	$	1,114	$	222	$	1,639	$	1,435
Passenger ancillary revenue	84		31		134		147
Mileage Plan passenger revenue	154		56		238		208
Total Passenger revenue	$	1,352	$	309	$	2,011	$	1,790

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Passenger revenue	$	154	$	56	$	238	$	208
Mileage Plan other revenue	118		73		212		182
Total Mileage Plan revenue	$	272	$	129	$	450	$	390

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Cargo revenue	$	34	$	28	$	61	$	52
Other revenue	23		11		40		33
Total Cargo and other revenue	$	57	$	39	$	101	$	85

Contract with Customer Liabilities

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

	Six Months Ended June 30,
	2021		2020
Total Deferred Revenue balance at January 1	$	2,277	$	1,990
Travel miles and companion certificate redemption - Passenger revenue	(238)		(208)
Miles redeemed on partner airlines - Other revenue	(17)		(21)
Increase in liability for mileage credits issued	324		313
Total Deferred Revenue balance at June 30	$	2,346	$	2,074