INCOME TAXES (Details) (USD $)	3 Months Ended		6 Months Ended				6 Months Ended				6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	May 06, 2011 item	Jun. 30, 2013 GGP	Dec. 31, 2012 GGP	Oct. 20, 2011 GGP item	May 06, 2011 GGP	Jun. 30, 2013 GGP Maximum
Income taxes
Percentage of certain taxes indemnified by related party							93.75%
Amount of certain taxes indemnified by related party											$ 303,800,000
Amount of interest income receivable on the Tax Indemnity receivable							40,200,000	36,400,000
Amount of combined deficiencies determined by the IRS sought to be overturned by the petition filed										144,100,000
Number of former taxable REIT subsidiaries subject to litigation for which motion is filed to consolidate cases						2			2
Reduction in tax indemnity receivable	7,499,000	8,782,000	9,403,000	8,782,000
Unrecognized tax benefits, excluding interest	95,900,000		95,900,000		95,900,000
Accrued interest related to unrecognized tax benefits	40,500,000		40,500,000		36,600,000
Increase in interest expense related to unrecognized tax benefits	$ 1,800,000		$ 3,900,000