REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)

12 Months Ended

Dec. 31, 2022

Revenue from Contracts with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

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

	Twelve Months Ended December 31,
	2022		2021		2020
Passenger ticket revenue, including ticket breakage and net of taxes and fees	$	7,430	$	4,533	$	2,428
Passenger ancillary revenue	447		327		245
Mileage Plan passenger revenue	931		639		346
Total Passenger revenue	$	8,808	$	5,499	$	3,019

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

	Twelve Months Ended December 31,
	2022		2021		2020
Passenger revenue	$	931	$	639	$	346
Mileage Plan other revenue	590		461		374
Total Mileage Plan revenue	$	1,521	$	1,100	$	720

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

	Twelve Months Ended December 31,
	2022		2021		2020
Cargo revenue	$	133	$	124	$	112
Other revenue	115		92		61
Total Cargo and other revenue	$	248	$	216	$	173

Contract with Customer, Asset and Liability [Table Text Block]

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

	Twelve Months Ended December 31,
	2022		2021
Total Deferred Revenue balance at January 1	$	2,358	$	2,277
Travel miles and companion certificate redemption - Passenger revenue	(878)		(639)
Miles redeemed on partner airlines - Other revenue	(65)		(43)
Increase in liability for mileage credits issued	1,082		763
Total Deferred Revenue balance at December 31	$	2,497	$	2,358