LEASES (Tables)

12 Months Ended

Dec. 31, 2011

Notes to Financial Statements [Abstract]

Capital Leases Aircraft Included In Property And Equipment [Text Block]

(in millions)	2011		2010
Flight equipment	$	177	$	132
Less: accumulated amortization		132		125
	$	45	$	7

Future Minimum Lease Payments Under Capital Leases And Noncancelable Operating Leases [Text Block]

	Capital		Operating
(in millions)	leases		leases
2012	$	6	$	640
2013		6		717
2014		6		642
2015		6		579
2016		6		489
Thereafter		26		2,516
Total minimum lease payments		56	$	5,583
Less amount representing interest		14
Present value of minimum lease payments		42
Less current portion		3
Long-term portion	$	39