OTHER ASSETS AND LIABILITIES

3 Months Ended

Jun. 30, 2012

Notes to Financial Statements [Abstract]

OTHER ASSETS AND LIABILITIES

7.OTHER ASSETS AND LIABILITIES

		June 30,		December 31,
(in millions)		2012		2011
Derivative contracts		$	154	$	253
Intangible assets			151		155
Non-current investments			59		97
Other			149		121
	Other assets	$	513	$	626

		June 30,		December 31,
(in millions)		2012		2011
Retirement plans		$	178	$	110
Aircraft rentals			85		57
Vacation pay			258		248
Health			60		56
Derivative contracts			33		85
Workers compensation			163		162
Accrued Taxes			138		68
Other			227		210
	Accrued liabilities	$	1,142	$	996

		June 30,		December 31,
(in millions)		2012		2011
Postretirement obligation		$	112	$	107
Non-current leasehold interest			292		311
Airport construction obligation			268		202
Other			273		290
	Other non-current liabilities	$	945	$	910