COMMITMENTS AND CONTINGENCIES COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases and Unrecorded Unconditional Purchase Obligtaions [Table Text Block]

Future minimum payments for commitments as of December 31, 2018 (in millions):

	Aircraft Leases		Facility Leases		Aircraft Commitments(a)		Capacity Purchase Agreements(b)		Aircraft Maintenance Deposits
2019	$	350	$	133	$	495	$	138	$	61
2020	320		124		517		145		65
2021	286		113		556		166		59
2022	262		94		307		174		48
2023	208		26		108		179		24
Thereafter	847		122		33		1,065		8
Total	$	2,273	$	612	$	2,016	$	1,867	$	265