INCOME TAXES (Details) (USD $)	3 Months Ended		6 Months Ended			6 Months Ended				6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Jun. 30, 2014 GGP	Dec. 31, 2013 GGP	Oct. 20, 2011 GGP item	May 06, 2011 GGP item	Jun. 30, 2014 GGP Maximum
Income taxes
Number of former taxable REIT subsidiaries subject to litigation for which motion is filed to consolidate cases								2	2
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						58,800,000	38,600,000
Amount of combined deficiencies determined by the IRS sought to be overturned by the petition filed									144,100,000
Unrecognized tax benefits, excluding interest	158,600,000		158,600,000		90,500,000
Accrued interest related to unrecognized tax benefits	58,900,000		58,900,000		38,700,000
Interest expense related to unrecognized tax benefits	18,400,000
Net increase in tax indemnity receivable			9,300,000
Increase in tax indemnity receivable due to the increase in the related interest income			20,246,000	3,870,000
Loss on remeasurement	10,927,000	7,499,000	10,927,000	9,403,000
Effective tax rate (as a percent)	149.60%	(21.10%)	(95.20%)	(18.90%)
Deferred tax liabilities related to land and buildings					$ 48,000,000