Equity, Capital and Other Interests (Tables)

3 Months Ended

Mar. 31, 2014

Common shares and units rollforward

The following tables present the changes in the Company’s issued and outstanding Common Shares and “Units” (which includes OP Units and Long-Term Incentive Plan (“LTIP”) Units) for the quarter ended March 31, 2014:

	2014
Common Shares
Common Shares outstanding at January 1,	360,479,260
Common Shares Issued:
Conversion of OP Units	18,043
Exercise of share options	493,995
Employee Share Purchase Plan (ESPP)	37,928
Restricted share grants, net	162,349
Common Shares Other:
Conversion of restricted shares to LTIP Units	(12,146	)
Repurchased and retired	(31,240	)
Common Shares outstanding at March 31,	361,148,189
Units
Units outstanding at January 1,	14,180,376
LTIP Units, net	200,840
Conversion of restricted shares to LTIP Units	12,146
Conversion of OP Units to Common Shares	(18,043	)
Units outstanding at March 31,	14,375,319
Total Common Shares and Units outstanding at March 31,	375,523,508
Units Ownership Interest in Operating Partnership	3.8	%

Redeemable Noncontrolling Interest [Table Text Block]

The following table presents the changes in the redemption value of the Redeemable Noncontrolling Interests – Operating Partnership for the quarter ended March 31, 2014 (amounts in thousands):

	2014
Balance at January 1,	$	363,144
Change in market value	44,530
Change in carrying value	(2,398		)
Balance at March 31,	$	405,276

Schedule Of Preferred Stock [Table Text Block]

The following table presents the Company’s issued and outstanding Preferred Shares as of March 31, 2014 and December 31, 2013:

				Amounts in thousands
	Redemption Date (1)	Annual Dividend per Share (2)		March 31, 2014		December 31, 2013
Preferred Shares of beneficial interest, $0.01 par value; 100,000,000 shares authorized:
8.29% Series K Cumulative Redeemable Preferred; liquidation value $50 per share; 1,000,000 shares issued and outstanding at March 31, 2014 and December 31, 2013	12/10/26		$4.145	$	50,000	$	50,000
				$	50,000	$	50,000

(1) On or after the redemption date, redeemable preferred shares may be redeemed for cash at the option of the Company, in whole or

in part, at a redemption price equal to the liquidation price per share, plus accrued and unpaid distributions, if any.

(2) Dividends on Preferred Shares are payable quarterly.

Limited Partner [Member]

Common shares and units rollforward

The following tables present the changes in the Operating Partnership’s issued and outstanding Units and in the limited partners’ Units for the quarter ended March 31, 2014:

	2014
General and Limited Partner Units
General and Limited Partner Units outstanding at January 1,	374,659,636
Issued to General Partner:
Exercise of EQR share options	493,995
EQR’s Employee Share Purchase Plan (ESPP)	37,928
EQR's restricted share grants, net	162,349
Issued to Limited Partners:
LTIP Units, net	200,840
OP Units Other:
Repurchased and retired	(31,240	)
General and Limited Partner Units outstanding at March 31,	375,523,508
Limited Partner Units
Limited Partner Units outstanding at January 1,	14,180,376
Limited Partner LTIP Units, net	200,840
Conversion of EQR restricted shares to LTIP Units	12,146
Conversion of Limited Partner OP Units to EQR Common Shares	(18,043	)
Limited Partner Units outstanding at March 31,	14,375,319
Limited Partner Units Ownership Interest in Operating Partnership	3.8	%

Redeemable Noncontrolling Interest [Table Text Block]

The following table presents the changes in the redemption value of the Redeemable Limited Partners for the quarter ended March 31, 2014 (amounts in thousands):

	2014
Balance at January 1,	$	363,144
Change in market value	44,530
Change in carrying value	(2,398		)
Balance at March 31,	$	405,276

Schedule Of Preferred Stock [Table Text Block]

The following table presents the Operating Partnership’s issued and outstanding “Preference Units” as of March 31, 2014 and December 31, 2013:

				Amounts in thousands
	Redemption Date (1)	Annual Dividend per Unit (2)		March 31, 2014		December 31, 2013
Preference Units:
8.29% Series K Cumulative Redeemable Preference Units;   liquidation value $50 per unit; 1,000,000 units issued and   outstanding at March 31, 2014 and December 31, 2013	12/10/26		$4.145	$	50,000	$	50,000
				$	50,000	$	50,000

(1) On or after the redemption date, redeemable preference units may be redeemed for cash at the option of the Operating Partnership, in whole or in part, at a redemption price equal to the liquidation price per unit, plus accrued and unpaid distributions, if any, in conjunction with the concurrent redemption of the corresponding Company Preferred Shares.

(2) Dividends on Preference Units are payable quarterly.