REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)

3 Months Ended

Mar. 31, 2021

Revenue Recognition [Abstract]

Disaggregation of Revenue

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

	Three Months Ended March 31,
	2021		2020
Passenger ticket revenue, including ticket breakage and net of taxes and fees	$	525	$	1,213
Passenger ancillary revenue	50		116
Mileage Plan passenger revenue	84		152
Total Passenger revenue	$	659	$	1,481

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

	Three Months Ended March 31,
	2021		2020
Passenger revenue	$	84	$	152
Mileage Plan other revenue	94		109
Total Mileage Plan revenue	$	178	$	261

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

	Three Months Ended March 31,
	2021		2020
Cargo revenue	$	27	$	24
Other revenue	17		22
Total Cargo and other revenue	$	44	$	46

Contract with Customer Liabilities

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

	Three Months Ended March 31,
	2021		2020
Total Deferred Revenue balance at January 1	$	2,277	$	1,990
Travel miles and companion certificate redemption - Passenger revenue	(84)		(152)
Miles redeemed on partner airlines - Other revenue	(4)		(22)
Increase in liability for mileage credits issued	136		207
Total Deferred Revenue balance at March 31	$	2,325	$	2,023