CONSOLIDATED STATEMENTS OF OPERATIONS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
REVENUES
Rental income	$ 662,001,000	$ 624,063,000	$ 1,942,492,000	$ 1,741,169,000
Fee and asset management	2,077,000	2,566,000	7,596,000	7,399,000
Total revenues	664,078,000	626,629,000	1,950,088,000	1,748,568,000
EXPENSES
Property and maintenance	120,144,000	118,782,000	361,105,000	330,812,000
Real estate taxes and insurance	80,568,000	75,916,000	245,717,000	217,753,000
Property management	18,407,000	18,875,000	61,080,000	63,395,000
Fee and asset management	1,253,000	1,516,000	4,293,000	4,739,000
Depreciation	190,469,000	276,707,000	565,772,000	796,233,000
General and administrative	9,968,000	14,437,000	41,296,000	47,017,000
Total expenses	420,809,000	506,233,000	1,279,263,000	1,459,949,000
Operating Income	243,269,000	120,396,000	670,825,000	288,619,000
Interest and other income	576,000	1,015,000	3,213,000	1,767,000
Other expenses	(4,971,000)	(4,368,000)	(7,161,000)	(27,718,000)
Interest:
Expense incurred, net	(118,251,000)	(120,035,000)	(347,224,000)	(437,452,000)
Amortization of deferred financing costs	(2,628,000)	(4,335,000)	(8,554,000)	(15,636,000)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of land parcels, discontinued operations and net gain on sales of real estate properties	117,995,000	(7,327,000)	311,099,000	(190,420,000)
Income and other tax (expense) benefit	(260,000)	(492,000)	(1,146,000)	(1,325,000)
(Loss) from investments in unconsolidated entities	(1,176,000)	(3,209,000)	(10,201,000)	(57,749,000)
Net gain (loss) on sales of land parcels	1,052,000	(2,437,000)	1,846,000	12,179,000
Income (loss) from continuing operations	117,611,000	(13,465,000)	301,598,000	(237,315,000)
Discontinued operations, net	(62,000)	405,182,000	1,500,000	2,026,798,000
Income before net gain on sales of real estate properties	117,549,000	391,717,000	303,098,000	1,789,483,000
Net gain on sales of real estate properties	113,641,000	0	128,544,000	0
Net income	231,190,000	391,717,000	431,642,000	1,789,483,000
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(708,000)	311,000	(1,800,000)	1,101,000
Net income attributable to controlling interests	221,744,000	377,192,000	413,569,000	1,719,637,000
Earnings per Unit - basic:
Income (loss) from continuing operations available to Units	$ 0.611	$ (0.038)	$ 1.133	$ (0.652)
Net income available to Units	$ 0.611	$ 1.045	$ 1.137	$ 4.871
Earnings per Unit - diluted:
Income (loss) from continuing operations available to Units	$ 0.607	$ (0.038)	$ 1.127	$ (0.652)
Net income available to Units	$ 0.607	$ 1.045	$ 1.131	$ 4.871
OPERATING PARTNERSHIP
REVENUES
Rental income	662,001,000	624,063,000	1,942,492,000	1,741,169,000
Fee and asset management	2,077,000	2,566,000	7,596,000	7,399,000
Total revenues	664,078,000	626,629,000	1,950,088,000	1,748,568,000
EXPENSES
Property and maintenance	120,144,000	118,782,000	361,105,000	330,812,000
Real estate taxes and insurance	80,568,000	75,916,000	245,717,000	217,753,000
Property management	18,407,000	18,875,000	61,080,000	63,395,000
Fee and asset management	1,253,000	1,516,000	4,293,000	4,739,000
Depreciation	190,469,000	276,707,000	565,772,000	796,233,000
General and administrative	9,968,000	14,437,000	41,296,000	47,017,000
Total expenses	420,809,000	506,233,000	1,279,263,000	1,459,949,000
Operating Income	243,269,000	120,396,000	670,825,000	288,619,000
Interest and other income	576,000	1,015,000	3,213,000	1,767,000
Other expenses	(4,971,000)	(4,368,000)	(7,161,000)	(27,718,000)
Interest:
Expense incurred, net	(118,251,000)	(120,035,000)	(347,224,000)	(437,452,000)
Amortization of deferred financing costs	(2,628,000)	(4,335,000)	(8,554,000)	(15,636,000)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of land parcels, discontinued operations and net gain on sales of real estate properties	117,995,000	(7,327,000)	311,099,000	(190,420,000)
Income and other tax (expense) benefit	(260,000)	(492,000)	(1,146,000)	(1,325,000)
(Loss) from investments in unconsolidated entities	(1,176,000)	(3,209,000)	(10,201,000)	(57,749,000)
Net gain (loss) on sales of land parcels	1,052,000	(2,437,000)	1,846,000	12,179,000
Income (loss) from continuing operations	117,611,000	(13,465,000)	301,598,000	(237,315,000)
Discontinued operations, net	(62,000)	405,182,000	1,500,000	2,026,798,000
Income before net gain on sales of real estate properties	117,549,000	391,717,000	303,098,000	1,789,483,000
Net gain on sales of real estate properties	113,641,000	0	128,544,000	0
Net income	231,190,000	391,717,000	431,642,000	1,789,483,000
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(708,000)	311,000	(1,800,000)	1,101,000
Net income attributable to controlling interests	230,482,000	392,028,000	429,842,000	1,790,584,000
ALLOCATION OF NET INCOME:
Preference Units	1,037,000	1,037,000	3,109,000	3,109,000
General Partner	220,707,000	376,155,000	410,460,000	1,716,528,000
Limited Partners	8,738,000	14,836,000	16,273,000	70,947,000
Net income available to Units	$ 229,445,000	$ 390,991,000	$ 426,733,000	$ 1,787,475,000
Earnings per Unit - basic:
Income (loss) from continuing operations available to Units	$ 0.611	$ (0.038)	$ 1.133	$ (0.652)
Net income available to Units	$ 0.611	$ 1.045	$ 1.137	$ 4.871
Weighted average Units outstanding	375,116	373,547	374,626	366,150
Earnings per Unit - diluted:
Income (loss) from continuing operations available to Units	$ 0.607	$ (0.038)	$ 1.127	$ (0.652)
Net income available to Units	$ 0.607	$ 1.045	$ 1.131	$ 4.871
Weighted average Units outstanding	377,954	373,547	377,228	366,150
Distributions declared per Unit outstanding	$ 0.50	$ 0.40	$ 1.50	$ 1.20