Individually Significant Dispositions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
REVENUES
Rental income	$ 594,939	$ 676,508	$ 1,211,104	$ 1,341,114
Total revenues	595,154	679,112	1,214,237	1,345,483
EXPENSES (1)
Cost of Property Repairs and Maintenance	96,307	118,005	205,472	242,565
Real Estate Taxes and Insurance	77,415	83,119	157,611	169,551
Property management	20,991	21,792	44,486	44,557
General and administrative	18,296	15,659	35,013	35,421
Depreciation	176,127	194,282	349,012	388,803
Total expenses	389,136	432,857	791,594	880,897
Operating income	206,018	246,255	422,643	464,586
Interest and other income	56,525	6,481	59,583	6,650
INTEREST (2)
Expense incurred, net	(86,472)	(110,866)	(299,964)	(219,648)
Amortization of deferred financing costs	(2,345)	(2,538)	(7,739)	(5,127)
Income and other tax (expense) benefit	(413)	(326)	(763)	(369)
Net gain on sales of real estate properties	57,356	148,802	3,780,835	228,753
Net income attributable to Noncontrolling Interests	(8,780)	(11,354)	(152,089)	(18,413)
Net income attributable to controlling interests	218,839	286,420	$ 3,806,597	$ 468,942
Starwood Portfolio [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of consolidated NOI			2.30%	15.80%
REVENUES
Rental income	304	106,202	$ 30,421	$ 209,911
Total revenues	304	106,202	30,421	209,911
EXPENSES (1)
Cost of Property Repairs and Maintenance	33	19,616	7,923	38,702
Real Estate Taxes and Insurance	60	12,477	2,932	24,624
Property management	0	3	2	6
General and administrative	14	24	15	25
Depreciation	0	26,238	0	52,432
Total expenses	107	58,358	10,872	115,789
Operating income	197	47,844	19,549	94,122
Interest and other income	9	0	11	0
INTEREST (2)
Expense incurred, net	(46)	(178)	(374)	(342)
Amortization of deferred financing costs	0	(25)	(707)	(49)
Income and other tax (expense) benefit	(1)	(1)	(1)	(1)
Net gain on sales of real estate properties	(21)	0	3,161,200	0
Net Income (Loss) Allocated to General Partners	138	47,640	3,179,678	93,730
Net income attributable to Noncontrolling Interests	(6)	(1,820)	(122,138)	(3,574)
Net income attributable to controlling interests	$ 132	$ 45,820	$ 3,057,540	$ 90,156