10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended JUNE 30, 2014

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number: 1-12252 (Equity Residential)

Commission File Number: 0-24920 (ERP Operating Limited Partnership)

EQUITY RESIDENTIAL

ERP OPERATING LIMITED PARTNERSHIP

(Exact name of registrant as specified in its charter)

Maryland (Equity Residential)	13-3675988 (Equity Residential)
Illinois (ERP Operating Limited Partnership)	36-3894853 (ERP Operating Limited Partnership)
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
Two North Riverside Plaza, Chicago, Illinois 60606	(312) 474-1300
(Address of principal executive offices) (Zip Code)	(Registrant's telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Equity Residential Yes x    No ¨ ERP Operating Limited Partnership Yes x      No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Equity Residential Yes x    No ¨ ERP Operating Limited Partnership Yes x      No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Equity Residential:
Large accelerated filer x	Accelerated filer ¨
Non-accelerated filer ¨ (Do not check if a smaller reporting company)	Smaller reporting company ¨

ERP Operating Limited Partnership:
Large accelerated filer ¨	Accelerated filer ¨
Non-accelerated filer x (Do not check if a smaller reporting company)	Smaller reporting company ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). 

Equity Residential Yes ¨    No x ERP Operating Limited Partnership Yes ¨      No x

The number of EQR Common Shares of Beneficial Interest, $0.01 par value, outstanding on July 31, 2014 was 361,742,672.

EXPLANATORY NOTE

This report combines the reports on Form 10-Q for the quarterly period ended June 30, 2014 of Equity Residential and ERP Operating Limited Partnership. Unless stated otherwise or the context otherwise requires, references to “EQR” mean Equity Residential, a Maryland real estate investment trust (“REIT”), and references to “ERPOP” mean ERP Operating Limited Partnership, an Illinois limited partnership. References to the “Company,” “we,” “us” or “our” mean collectively EQR, ERPOP and those entities/subsidiaries owned or controlled by EQR and/or ERPOP. References to the “Operating Partnership” mean collectively ERPOP and those entities/subsidiaries owned or controlled by ERPOP. The following chart illustrates the Company's and the Operating Partnership's corporate structure:

EQR is the general partner of, and as of June 30, 2014 owned an approximate 96.2% ownership interest in, ERPOP. The remaining 3.8% interest is owned by limited partners. As the sole general partner of ERPOP, EQR has exclusive control of ERPOP's day-to-day management.

The Company is structured as an umbrella partnership REIT (“UPREIT”) and contributes all net proceeds from its various equity offerings to the Operating Partnership. In return for those contributions, the Company receives a number of OP Units (see definition below) in the Operating Partnership equal to the number of Common Shares it has issued in the equity offering. Contributions of properties to the Company can be structured as tax-deferred transactions through the issuance of OP Units in the Operating Partnership, which is one of the reasons why the Company is structured in the manner shown above. Based on the terms of ERPOP's partnership agreement, OP Units can be exchanged with Common Shares on a one-for-one basis. The Company maintains a one-for-one relationship between the OP Units of the Operating Partnership issued to EQR and the Common Shares.

The Company believes that combining the reports on Form 10-Q of EQR and ERPOP into this single report provides the following benefits:

• enhances investors' understanding of the Company and the Operating Partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business;

• eliminates duplicative disclosure and provides a more streamlined and readable presentation since a substantial portion of the disclosure applies to both the Company and the Operating Partnership; and

• creates time and cost efficiencies through the preparation of one combined report instead of two separate reports.

Management operates the Company and the Operating Partnership as one business. The management of EQR consists of the same members as the management of ERPOP.

The Company believes it is important to understand the few differences between EQR and ERPOP in the context of how EQR and ERPOP operate as a consolidated company. All of the Company's property ownership, development and related business operations are conducted through the Operating Partnership and EQR has no material assets or liabilities other than its investment in ERPOP. EQR's primary function is acting as the general partner of ERPOP. EQR also issues equity from time to time and guarantees certain debt of ERPOP, as disclosed in this report. EQR does not have any indebtedness as all debt is incurred by the Operating Partnership. The Operating Partnership holds substantially all of the assets of the Company, including the Company's ownership interests in its joint ventures. The Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity. Except for the net proceeds from equity offerings by the Company, which are contributed

to the capital of the Operating Partnership in exchange for additional limited partnership interests in the Operating Partnership (“OP Units”) (on a one-for-one Common Share per OP Unit basis), the Operating Partnership generates all remaining capital required by the Company's business. These sources include the Operating Partnership's working capital, net cash provided by operating activities, borrowings under its revolving credit facility, the issuance of secured and unsecured debt and equity securities and proceeds received from disposition of certain properties and joint ventures.

Shareholders' equity, partners' capital and noncontrolling interests are the main areas of difference between the consolidated financial statements of the Company and those of the Operating Partnership. The limited partners of the Operating Partnership are accounted for as partners' capital in the Operating Partnership's financial statements and as noncontrolling interests in the Company's financial statements. The noncontrolling interests in the Operating Partnership's financial statements include the interests of unaffiliated partners in various consolidated partnerships and development joint venture partners. The noncontrolling interests in the Company's financial statements include the same noncontrolling interests at the Operating Partnership level and limited partner OP Unit holders of the Operating Partnership. The differences between shareholders' equity and partners' capital result from differences in the equity issued at the Company and Operating Partnership levels.

To help investors understand the significant differences between the Company and the Operating Partnership, this report provides separate consolidated financial statements for the Company and the Operating Partnership; a single set of consolidated notes to such financial statements that includes separate discussions of each entity's debt, noncontrolling interests and shareholders' equity or partners' capital, as applicable; and a combined Management's Discussion and Analysis of Financial Condition and Results of Operations section that includes discrete information related to each entity.

This report also includes separate Part I, Item 4. Controls and Procedures sections and separate Exhibits 31 and 32 certifications for each of the Company and the Operating Partnership in order to establish that the requisite certifications have been made and that the Company and the Operating Partnership are compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934 and 18 U.S.C. §1350.

In order to highlight the differences between the Company and the Operating Partnership, the separate sections in this report for the Company and the Operating Partnership specifically refer to the Company and the Operating Partnership. In the sections that combine disclosure of the Company and the Operating Partnership, this report refers to actions or holdings as being actions or holdings of the Company. Although the Operating Partnership is generally the entity that directly or indirectly enters into contracts and joint ventures and holds assets and debt, reference to the Company is appropriate because the Company is one business and the Company operates that business through the Operating Partnership.

As general partner with control of the Operating Partnership, the Company consolidates the Operating Partnership for financial reporting purposes, and EQR essentially has no assets or liabilities other than its investment in ERPOP. Therefore, the assets and liabilities of the Company and the Operating Partnership are the same on their respective financial statements. The separate discussions of the Company and the Operating Partnership in this report should be read in conjunction with each other to understand the results of the Company on a consolidated basis and how management operates the Company.

TABLE OF CONTENTS

	PAGE
PART I.
Item 1. Financial Statements of Equity Residential:
Consolidated Balance Sheets as of June 30, 2014 and December 31, 2013	2
Consolidated Statements of Operations and Comprehensive Income for the six months and quarters ended June 30, 2014 and 2013	3 to 4
Consolidated Statements of Cash Flows for the six months ended June 30, 2014 and 2013	5 to 7
Consolidated Statement of Changes in Equity for the six months ended June 30, 2014	8 to 9
Financial Statements of ERP Operating Limited Partnership:
Consolidated Balance Sheets as of June 30, 2014 and December 31, 2013	10
Consolidated Statements of Operations and Comprehensive Income for the the six months and quarters ended June 30, 2014 and 2013	11 to 12
Consolidated Statements of Cash Flows for the six months ended June 30, 2014 and 2013	13 to 15
Consolidated Statement of Changes in Capital for the six months ended June 30, 2014	16 to 17
Notes to Consolidated Financial Statements of Equity Residential and ERP Operating Limited Partnership	18 to 45
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	46 to 70
Item 3. Quantitative and Qualitative Disclosures about Market Risk	70
Item 4. Controls and Procedures	70 to 71
PART II.
Item 1. Legal Proceedings	72
Item 1A. Risk Factors	72
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	72
Item 3. Defaults Upon Senior Securities	72
Item 4. Mine Safety Disclosures	72
Item 5. Other Information	72
Item 6. Exhibits	72

EQUITY RESIDENTIAL

CONSOLIDATED BALANCE SHEETS

(Amounts in thousands except for share amounts)

(Unaudited)

	June 30, 2014			December 31, 2013
ASSETS
Investment in real estate
Land	$	6,296,735		$	6,192,512
Depreciable property	19,730,737			19,226,047
Projects under development	1,006,992			988,867
Land held for development	306,625			393,522
Investment in real estate	27,341,089			26,800,948
Accumulated depreciation	(5,170,438		)	(4,807,709		)
Investment in real estate, net	22,170,651			21,993,239
Cash and cash equivalents	76,132			53,534
Investments in unconsolidated entities	142,318			178,526
Deposits – restricted	84,408			103,567
Escrow deposits – mortgage	45,269			42,636
Deferred financing costs, net	63,441			58,486
Other assets	409,183			404,557
Total assets	$	22,991,402		$	22,834,545
LIABILITIES AND EQUITY
Liabilities:
Mortgage notes payable	$	5,158,091		$	5,174,166
Notes, net	5,923,952			5,477,088
Lines of credit	—			115,000
Accounts payable and accrued expenses	168,225			118,791
Accrued interest payable	78,389			78,309
Other liabilities	331,662			347,748
Security deposits	74,508			71,592
Distributions payable	187,906			243,511
Total liabilities	11,922,733			11,626,205
Commitments and contingencies
Redeemable Noncontrolling Interests – Operating Partnership	440,050			363,144
Equity:
Shareholders’ equity:
Preferred Shares of beneficial interest, $0.01 par value;
100,000,000 shares authorized; 1,000,000 shares issued and outstanding as of June 30, 2014 and December 31, 2013	50,000			50,000
Common Shares of beneficial interest, $0.01 par value;
1,000,000,000 shares authorized; 361,562,007 shares issued and outstanding as of June 30, 2014 and 360,479,260 shares issued and outstanding as of December 31, 2013	3,616			3,605
Paid in capital	8,527,380			8,561,500
Retained earnings	1,875,732			2,047,258
Accumulated other comprehensive (loss)	(166,990		)	(155,162		)
Total shareholders’ equity	10,289,738			10,507,201
Noncontrolling Interests:
Operating Partnership	213,038			211,412
Partially Owned Properties	125,843			126,583
Total Noncontrolling Interests	338,881			337,995
Total equity	10,628,619			10,845,196
Total liabilities and equity	$	22,991,402		$	22,834,545

See accompanying notes

2

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME

(Amounts in thousands except per share data)

(Unaudited)

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
REVENUES
Rental income	$	1,280,491		$	1,117,106		$	649,766		$	614,544
Fee and asset management	5,519			4,833			2,802			2,673
Total revenues	1,286,010			1,121,939			652,568			617,217
EXPENSES
Property and maintenance	240,961			212,030			115,388			113,501
Real estate taxes and insurance	165,149			141,837			83,055			76,742
Property management	42,673			44,520			20,555			22,031
Fee and asset management	3,040			3,223			1,378			1,577
Depreciation	375,303			519,526			190,136			323,304
General and administrative	31,328			32,580			13,752			16,085
Total expenses	858,454			953,716			424,264			553,240
Operating income	427,556			168,223			228,304			63,977
Interest and other income	2,637			752			2,032			432
Other expenses	(2,190		)	(23,350		)	(1,533		)	(1,631		)
Interest:
Expense incurred, net	(228,973		)	(317,417		)	(115,924		)	(122,950		)
Amortization of deferred financing costs	(5,926		)	(11,301		)	(3,134		)	(4,353		)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain on sales of land parcels, discontinued operations and net gain on sales of real estate properties	193,104			(183,093		)	109,745			(64,525		)
Income and other tax (expense) benefit	(886		)	(833		)	(646		)	(428		)
(Loss) from investments in unconsolidated entities	(9,025		)	(54,540		)	(7,616		)	(8,174		)
Net gain on sales of land parcels	794			14,616			824			14,616
Income (loss) from continuing operations	183,987			(223,850		)	102,307			(58,511		)
Discontinued operations, net	1,562			1,621,616			510			395,243
Income before net gain on sales of real estate properties	185,549			1,397,766			102,817			336,732
Net gain on sales of real estate properties	14,903			—			14,903			—
Net income	200,452			1,397,766			117,720			336,732
Net (income) loss attributable to Noncontrolling Interests:
Operating Partnership	(7,535		)	(56,111		)	(4,442		)	(12,788		)
Partially Owned Properties	(1,092		)	790			(588		)	815
Net income attributable to controlling interests	191,825			1,342,445			112,690			324,759
Preferred distributions	(2,072		)	(2,072		)	(1,036		)	(1,036		)
Net income available to Common Shares	$	189,753		$	1,340,373		$	111,654		$	323,723
Earnings per share – basic:
Income (loss) from continuing operations available to Common Shares	$	0.52		$	(0.62	)	$	0.31		$	(0.16	)
Net income available to Common Shares	$	0.53		$	3.84		$	0.31		$	0.90
Weighted average Common Shares outstanding	360,641			348,654			360,809			359,653
Earnings per share – diluted:
Income (loss) from continuing operations available to Common Shares	$	0.52		$	(0.62	)	$	0.31		$	(0.16	)
Net income available to Common Shares	$	0.52		$	3.84		$	0.31		$	0.90
Weighted average Common Shares outstanding	376,780			348,654			377,118			359,653
Distributions declared per Common Share outstanding	$	1.00		$	0.80		$	0.50		$	0.40

See accompanying notes

3

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Continued)

(Amounts in thousands except per share data)

(Unaudited)

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Comprehensive income:
Net income	$	200,452		$	1,397,766		$	117,720		$	336,732
Other comprehensive (loss) income:
Other comprehensive (loss) income – derivative instruments:
Unrealized holding (losses) gains arising during the period	(21,881		)	12,337			(9,929		)	9,523
Losses reclassified into earnings from other comprehensive income	8,335			12,098			4,206			3,826
Other comprehensive income – other instruments:
Unrealized holding gains arising during the period	—			928			—			501
Other comprehensive income – foreign currency:
Currency translation adjustments arising during the period	1,718			941			1,627			1,814
Other comprehensive (loss) income	(11,828		)	26,304			(4,096		)	15,664
Comprehensive income	188,624			1,424,070			113,624			352,396
Comprehensive (income) attributable to Noncontrolling Interests	(8,175		)	(56,342		)	(4,873		)	(12,568		)
Comprehensive income attributable to controlling interests	$	180,449		$	1,367,728		$	108,751		$	339,828

See accompanying notes

4

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2014			2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	200,452		$	1,397,766
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	375,303			550,488
Amortization of deferred financing costs	5,926			11,529
Amortization of above/below market leases	1,530			1,216
Amortization of discounts and premiums on debt	(5,876		)	(23,031		)
Amortization of deferred settlements on derivative instruments	8,068			11,830
Write-off of pursuit costs	1,492			3,365
Loss from investments in unconsolidated entities	9,025			54,540
Distributions from unconsolidated entities – return on capital	2,390			588
Net (gain) on sales of land parcels	(794		)	(14,616		)
Net (gain) on sales of discontinued operations	(224		)	(1,588,874		)
Net (gain) on sales of real estate properties	(14,903		)	—
Unrealized (gain) loss on derivative instruments	(90		)	24
Compensation paid with Company Common Shares	21,905			22,089
Changes in assets and liabilities:
(Increase) in deposits – restricted	(1,820		)	(12,220		)
Decrease in mortgage deposits	187			789
(Increase) in other assets	(7,745		)	(4,695		)
Increase in accounts payable and accrued expenses	38,951			25,956
Increase (decrease) in accrued interest payable	80			(1,396		)
(Decrease) in other liabilities	(17,237		)	(11,449		)
Increase (decrease) in security deposits	2,916			(6,080		)
Net cash provided by operating activities	619,536			417,819
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of Archstone, net of cash acquired	—			(4,000,875		)
Investment in real estate – acquisitions	(265,466		)	(108,308		)
Investment in real estate – development/other	(245,657		)	(154,576		)
Improvements to real estate	(76,912		)	(57,253		)
Additions to non-real estate property	(1,818		)	(2,801		)
Interest capitalized for real estate and unconsolidated entities under development	(25,037		)	(20,006		)
Proceeds from disposition of real estate, net	48,359			3,764,000
Investments in unconsolidated entities	(9,554		)	(53,687		)
Distributions from unconsolidated entities – return of capital	64,669			—
Decrease in deposits on real estate acquisitions and investments, net	20,979			65,869
Decrease in mortgage deposits	760			5,089
Acquisition of Noncontrolling Interests – Partially Owned Properties	(5,501		)	—
Net cash (used for) investing activities	(495,178		)	(562,548		)

See accompanying notes

5

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2014			2013
CASH FLOWS FROM FINANCING ACTIVITIES:
Loan and bond acquisition costs	$	(10,881	)	$	(18,006	)
Mortgage deposits	(3,580		)	(2,208		)
Mortgage notes payable:
Proceeds	—			683
Lump sum payoffs	(3,064		)	(697,897		)
Scheduled principal repayments	(6,000		)	(6,336		)
Notes, net:
Proceeds	1,194,277			1,245,550
Lump sum payoffs	(750,000		)	(400,000		)
Lines of credit:
Proceeds	3,374,000			8,413,000
Repayments	(3,489,000		)	(8,413,000		)
(Payments on) settlement of derivative instruments	(733		)	(44,013		)
Proceeds from Employee Share Purchase Plan (ESPP)	2,218			2,363
Proceeds from exercise of options	25,685			13,885
Common Shares repurchased and retired	(1,777		)	—
Payment of offering costs	—			(744		)
Other financing activities, net	(33		)	(33		)
Contributions – Noncontrolling Interests – Partially Owned Properties	5,684			6,769
Contributions – Noncontrolling Interests – Operating Partnership	3			5
Distributions:
Common Shares	(414,843		)	(393,347		)
Preferred Shares	(2,072		)	(1,036		)
Noncontrolling Interests – Operating Partnership	(16,405		)	(16,528		)
Noncontrolling Interests – Partially Owned Properties	(5,239		)	(4,404		)
Net cash (used for) financing activities	(101,760		)	(315,297		)
Net increase (decrease) in cash and cash equivalents	22,598			(460,026		)
Cash and cash equivalents, beginning of period	53,534			612,590
Cash and cash equivalents, end of period	$	76,132		$	152,564

See accompanying notes

6

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2014			2013
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	$	226,785		$	319,992
Net cash paid for income and other taxes	$	843		$	1,028
Amortization of deferred financing costs:
Investment in real estate, net	$	—		$	(1	)
Deferred financing costs, net	$	5,926		$	11,530
Amortization of discounts and premiums on debt:
Mortgage notes payable	$	(7,011	)	$	(24,083	)
Notes, net	$	1,135		$	1,052
Amortization of deferred settlements on derivative instruments:
Other liabilities	$	(267	)	$	(268	)
Accumulated other comprehensive income	$	8,335		$	12,098
Loss from investments in unconsolidated entities:
Investments in unconsolidated entities	$	7,354		$	49,507
Other liabilities	$	1,671		$	5,033
Distributions from unconsolidated entities – return on capital:
Investments in unconsolidated entities	$	2,285		$	588
Other liabilities	$	105		$	—
Unrealized (gain) loss on derivative instruments:
Other assets	$	10,611		$	(10,753	)
Notes, net	$	1,452		$	(1,523	)
Other liabilities	$	9,728		$	(37	)
Accumulated other comprehensive income	$	(21,881	)	$	12,337
Acquisition of Archstone, net of cash acquired:
Investment in real estate, net	$	39,929		$	(8,713,217	)
Investments in unconsolidated entities	$	(33,993	)	$	(214,677	)
Deposits – restricted	$	—		$	(474	)
Escrow deposits – mortgage	$	—		$	(35,898	)
Deferred financing costs, net	$	—		$	(25,780	)
Other assets	$	(2,586	)	$	(203,008	)
Mortgage notes payable	$	—		$	3,076,876
Accounts payable and accrued expenses	$	(146	)	$	17,576
Accrued interest payable	$	—		$	11,256
Other liabilities	$	(3,204	)	$	117,391
Security deposits	$	—		$	10,949
Issuance of Common Shares	$	—		$	1,929,868
Noncontrolling Interests – Partially Owned Properties	$	—		$	28,263
Interest capitalized for real estate and unconsolidated entities under development:
Investment in real estate, net	$	(25,002	)	$	(19,195	)
Investments in unconsolidated entities	$	(35	)	$	(811	)
Investments in unconsolidated entities:
Investments in unconsolidated entities	$	(2,354	)	$	(4,371	)
Other liabilities	$	(7,200	)	$	(49,316	)
Other:
Foreign currency translation adjustments	$	(1,718	)	$	(941	)

See accompanying notes

7

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY

(Amounts in thousands)

(Unaudited)

	Six Months Ended
	June 30, 2014
SHAREHOLDERS’ EQUITY
PREFERRED SHARES
Balance, beginning of year	$	50,000
Balance, end of period	$	50,000
COMMON SHARES, $0.01 PAR VALUE
Balance, beginning of year	$	3,605
Conversion of OP Units into Common Shares	1
Exercise of share options	8
Share-based employee compensation expense:
Restricted shares	2
Balance, end of period	$	3,616
PAID IN CAPITAL
Balance, beginning of year	$	8,561,500
Common Share Issuance:
Conversion of OP Units into Common Shares	1,429
Exercise of share options	25,677
Employee Share Purchase Plan (ESPP)	2,218
Share-based employee compensation expense:
Restricted shares	6,981
Share options	5,330
ESPP discount	587
Common Shares repurchased and retired	(1,777		)
Supplemental Executive Retirement Plan (SERP)	4,212
Acquisition of Noncontrolling Interests – Partially Owned Properties	(2,308		)
Change in market value of Redeemable Noncontrolling Interests – Operating Partnership	(80,615		)
Adjustment for Noncontrolling Interests ownership in Operating Partnership	4,146
Balance, end of period	$	8,527,380
RETAINED EARNINGS
Balance, beginning of year	$	2,047,258
Net income attributable to controlling interests	191,825
Common Share distributions	(361,279		)
Preferred Share distributions	(2,072		)
Balance, end of period	$	1,875,732

See accompanying notes

8

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended
	June 30, 2014
SHAREHOLDERS’ EQUITY (continued)
ACCUMULATED OTHER COMPREHENSIVE (LOSS)
Balance, beginning of year	$	(155,162	)
Accumulated other comprehensive (loss) – derivative instruments:
Unrealized holding (losses) arising during the period	(21,881		)
Losses reclassified into earnings from other comprehensive income	8,335
Accumulated other comprehensive income – foreign currency:
Currency translation adjustments arising during the period	1,718
Balance, end of period	$	(166,990	)
NONCONTROLLING INTERESTS
OPERATING PARTNERSHIP
Balance, beginning of year	$	211,412
Issuance of LTIP Units to Noncontrolling Interests	3
Conversion of OP Units held by Noncontrolling Interests into OP Units held by General Partner	(1,430		)
Equity compensation associated with Noncontrolling Interests	10,319
Net income attributable to Noncontrolling Interests	7,535
Distributions to Noncontrolling Interests	(14,364		)
Change in carrying value of Redeemable Noncontrolling Interests – Operating Partnership	3,709
Adjustment for Noncontrolling Interests ownership in Operating Partnership	(4,146		)
Balance, end of period	$	213,038
PARTIALLY OWNED PROPERTIES
Balance, beginning of year	$	126,583
Net income attributable to Noncontrolling Interests	1,092
Contributions by Noncontrolling Interests	5,684
Distributions to Noncontrolling Interests	(5,272		)
Acquisition of Noncontrolling Interests – Partially Owned Properties	(2,244		)
Balance, end of period	$	125,843

See accompanying notes

9

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED BALANCE SHEETS

(Amounts in thousands)

(Unaudited)

	June 30, 2014			December 31, 2013
ASSETS
Investment in real estate
Land	$	6,296,735		$	6,192,512
Depreciable property	19,730,737			19,226,047
Projects under development	1,006,992			988,867
Land held for development	306,625			393,522
Investment in real estate	27,341,089			26,800,948
Accumulated depreciation	(5,170,438		)	(4,807,709		)
Investment in real estate, net	22,170,651			21,993,239
Cash and cash equivalents	76,132			53,534
Investments in unconsolidated entities	142,318			178,526
Deposits – restricted	84,408			103,567
Escrow deposits – mortgage	45,269			42,636
Deferred financing costs, net	63,441			58,486
Other assets	409,183			404,557
Total assets	$	22,991,402		$	22,834,545
LIABILITIES AND CAPITAL
Liabilities:
Mortgage notes payable	$	5,158,091		$	5,174,166
Notes, net	5,923,952			5,477,088
Lines of credit	—			115,000
Accounts payable and accrued expenses	168,225			118,791
Accrued interest payable	78,389			78,309
Other liabilities	331,662			347,748
Security deposits	74,508			71,592
Distributions payable	187,906			243,511
Total liabilities	11,922,733			11,626,205
Commitments and contingencies
Redeemable Limited Partners	440,050			363,144
Capital:
Partners' Capital:
Preference Units	50,000			50,000
General Partner	10,406,728			10,612,363
Limited Partners	213,038			211,412
Accumulated other comprehensive (loss)	(166,990		)	(155,162		)
Total partners' capital	10,502,776			10,718,613
Noncontrolling Interests – Partially Owned Properties	125,843			126,583
Total capital	10,628,619			10,845,196
Total liabilities and capital	$	22,991,402		$	22,834,545

See accompanying notes

10

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME

(Amounts in thousands except per Unit data)

(Unaudited)

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
REVENUES
Rental income	$	1,280,491		$	1,117,106		$	649,766		$	614,544
Fee and asset management	5,519			4,833			2,802			2,673
Total revenues	1,286,010			1,121,939			652,568			617,217
EXPENSES
Property and maintenance	240,961			212,030			115,388			113,501
Real estate taxes and insurance	165,149			141,837			83,055			76,742
Property management	42,673			44,520			20,555			22,031
Fee and asset management	3,040			3,223			1,378			1,577
Depreciation	375,303			519,526			190,136			323,304
General and administrative	31,328			32,580			13,752			16,085
Total expenses	858,454			953,716			424,264			553,240
Operating income	427,556			168,223			228,304			63,977
Interest and other income	2,637			752			2,032			432
Other expenses	(2,190		)	(23,350		)	(1,533		)	(1,631		)
Interest:
Expense incurred, net	(228,973		)	(317,417		)	(115,924		)	(122,950		)
Amortization of deferred financing costs	(5,926		)	(11,301		)	(3,134		)	(4,353		)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain on sales of land parcels, discontinued operations and net gain on sales of real estate properties	193,104			(183,093		)	109,745			(64,525		)
Income and other tax (expense) benefit	(886		)	(833		)	(646		)	(428		)
(Loss) from investments in unconsolidated entities	(9,025		)	(54,540		)	(7,616		)	(8,174		)
Net gain on sales of land parcels	794			14,616			824			14,616
Income (loss) from continuing operations	183,987			(223,850		)	102,307			(58,511		)
Discontinued operations, net	1,562			1,621,616			510			395,243
Income before net gain on sales of real estate properties	185,549			1,397,766			102,817			336,732
Net gain on sales of real estate properties	14,903			—			14,903			—
Net income	200,452			1,397,766			117,720			336,732
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)	790			(588		)	815
Net income attributable to controlling interests	$	199,360		$	1,398,556		$	117,132		$	337,547
ALLOCATION OF NET INCOME:
Preference Units	$	2,072		$	2,072		$	1,036		$	1,036
General Partner	$	189,753		$	1,340,373		$	111,654		$	323,723
Limited Partners	7,535			56,111			4,442			12,788
Net income available to Units	$	197,288		$	1,396,484		$	116,096		$	336,511
Earnings per Unit – basic:
Income (loss) from continuing operations available to Units	$	0.52		$	(0.62	)	$	0.31		$	(0.16	)
Net income available to Units	$	0.53		$	3.84		$	0.31		$	0.90
Weighted average Units outstanding	374,377			362,390			374,551			373,403
Earnings per Unit – diluted:
Income (loss) from continuing operations available to Units	$	0.52		$	(0.62	)	$	0.31		$	(0.16	)
Net income available to Units	$	0.52		$	3.84		$	0.31		$	0.90
Weighted average Units outstanding	376,780			362,390			377,118			373,403
Distributions declared per Unit outstanding	$	1.00		$	0.80		$	0.50		$	0.40

See accompanying notes

11

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Continued)

(Amounts in thousands except per Unit data)

(Unaudited)

	Six Months Ended June 30,					Quarter Ended June 30,
	2014			2013		2014			2013
Comprehensive income:
Net income	$	200,452		$	1,397,766	$	117,720		$	336,732
Other comprehensive (loss) income:
Other comprehensive (loss) income – derivative instruments:
Unrealized holding (losses) gains arising during the period	(21,881		)	12,337		(9,929		)	9,523
Losses reclassified into earnings from other comprehensive income	8,335			12,098		4,206			3,826
Other comprehensive income – other instruments:
Unrealized holding gains arising during the period	—			928		—			501
Other comprehensive income – foreign currency:
Currency translation adjustments arising during the period	1,718			941		1,627			1,814
Other comprehensive (loss) income	(11,828		)	26,304		(4,096		)	15,664
Comprehensive income	188,624			1,424,070		113,624			352,396
Comprehensive (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)	790		(588		)	815
Comprehensive income attributable to controlling interests	$	187,532		$	1,424,860	$	113,036		$	353,211

See accompanying notes

12

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2014			2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	200,452		$	1,397,766
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	375,303			550,488
Amortization of deferred financing costs	5,926			11,529
Amortization of above/below market leases	1,530			1,216
Amortization of discounts and premiums on debt	(5,876		)	(23,031		)
Amortization of deferred settlements on derivative instruments	8,068			11,830
Write-off of pursuit costs	1,492			3,365
Loss from investments in unconsolidated entities	9,025			54,540
Distributions from unconsolidated entities – return on capital	2,390			588
Net (gain) on sales of land parcels	(794		)	(14,616		)
Net (gain) on sales of discontinued operations	(224		)	(1,588,874		)
Net (gain) on sales of real estate properties	(14,903		)	—
Unrealized (gain) loss on derivative instruments	(90		)	24
Compensation paid with Company Common Shares	21,905			22,089
Changes in assets and liabilities:
(Increase) in deposits – restricted	(1,820		)	(12,220		)
Decrease in mortgage deposits	187			789
(Increase) in other assets	(7,745		)	(4,695		)
Increase in accounts payable and accrued expenses	38,951			25,956
Increase (decrease) in accrued interest payable	80			(1,396		)
(Decrease) in other liabilities	(17,237		)	(11,449		)
Increase (decrease) in security deposits	2,916			(6,080		)
Net cash provided by operating activities	619,536			417,819
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of Archstone, net of cash acquired	—			(4,000,875		)
Investment in real estate – acquisitions	(265,466		)	(108,308		)
Investment in real estate – development/other	(245,657		)	(154,576		)
Improvements to real estate	(76,912		)	(57,253		)
Additions to non-real estate property	(1,818		)	(2,801		)
Interest capitalized for real estate and unconsolidated entities under development	(25,037		)	(20,006		)
Proceeds from disposition of real estate, net	48,359			3,764,000
Investments in unconsolidated entities	(9,554		)	(53,687		)
Distributions from unconsolidated entities – return of capital	64,669			—
Decrease in deposits on real estate acquisitions and investments, net	20,979			65,869
Decrease in mortgage deposits	760			5,089
Acquisition of Noncontrolling Interests – Partially Owned Properties	(5,501		)	—
Net cash (used for) investing activities	(495,178		)	(562,548		)

See accompanying notes

13

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2014			2013
CASH FLOWS FROM FINANCING ACTIVITIES:
Loan and bond acquisition costs	$	(10,881	)	$	(18,006	)
Mortgage deposits	(3,580		)	(2,208		)
Mortgage notes payable:
Proceeds	—			683
Lump sum payoffs	(3,064		)	(697,897		)
Scheduled principal repayments	(6,000		)	(6,336		)
Notes, net:
Proceeds	1,194,277			1,245,550
Lump sum payoffs	(750,000		)	(400,000		)
Lines of credit:
Proceeds	3,374,000			8,413,000
Repayments	(3,489,000		)	(8,413,000		)
(Payments on) settlement of derivative instruments	(733		)	(44,013		)
Proceeds from EQR's Employee Share Purchase Plan (ESPP)	2,218			2,363
Proceeds from exercise of EQR options	25,685			13,885
OP Units repurchased and retired	(1,777		)	—
Payment of offering costs	—			(744		)
Other financing activities, net	(33		)	(33		)
Contributions – Noncontrolling Interests – Partially Owned Properties	5,684			6,769
Contributions – Limited Partners	3			5
Distributions:
OP Units – General Partner	(414,843		)	(393,347		)
Preference Units	(2,072		)	(1,036		)
OP Units – Limited Partners	(16,405		)	(16,528		)
Noncontrolling Interests – Partially Owned Properties	(5,239		)	(4,404		)
Net cash (used for) financing activities	(101,760		)	(315,297		)
Net increase (decrease) in cash and cash equivalents	22,598			(460,026		)
Cash and cash equivalents, beginning of period	53,534			612,590
Cash and cash equivalents, end of period	$	76,132		$	152,564

See accompanying notes

14

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2014			2013
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	$	226,785		$	319,992
Net cash paid for income and other taxes	$	843		$	1,028
Amortization of deferred financing costs:
Investment in real estate, net	$	—		$	(1	)
Deferred financing costs, net	$	5,926		$	11,530
Amortization of discounts and premiums on debt:
Mortgage notes payable	$	(7,011	)	$	(24,083	)
Notes, net	$	1,135		$	1,052
Amortization of deferred settlements on derivative instruments:
Other liabilities	$	(267	)	$	(268	)
Accumulated other comprehensive income	$	8,335		$	12,098
Loss from investments in unconsolidated entities:
Investments in unconsolidated entities	$	7,354		$	49,507
Other liabilities	$	1,671		$	5,033
Distributions from unconsolidated entities – return on capital:
Investments in unconsolidated entities	$	2,285		$	588
Other liabilities	$	105		$	—
Unrealized (gain) loss on derivative instruments:
Other assets	$	10,611		$	(10,753	)
Notes, net	$	1,452		$	(1,523	)
Other liabilities	$	9,728		$	(37	)
Accumulated other comprehensive income	$	(21,881	)	$	12,337
Acquisition of Archstone, net of cash acquired:
Investment in real estate, net	$	39,929		$	(8,713,217	)
Investments in unconsolidated entities	$	(33,993	)	$	(214,677	)
Deposits – restricted	$	—		$	(474	)
Escrow deposits – mortgage	$	—		$	(35,898	)
Deferred financing costs, net	$	—		$	(25,780	)
Other assets	$	(2,586	)	$	(203,008	)
Mortgage notes payable	$	—		$	3,076,876
Accounts payable and accrued expenses	$	(146	)	$	17,576
Accrued interest payable	$	—		$	11,256
Other liabilities	$	(3,204	)	$	117,391
Security deposits	$	—		$	10,949
Issuance of OP Units	$	—		$	1,929,868
Noncontrolling Interests – Partially Owned Properties	$	—		$	28,263
Interest capitalized for real estate and unconsolidated entities under development:
Investment in real estate, net	$	(25,002	)	$	(19,195	)
Investments in unconsolidated entities	$	(35	)	$	(811	)
Investments in unconsolidated entities:
Investments in unconsolidated entities	$	(2,354	)	$	(4,371	)
Other liabilities	$	(7,200	)	$	(49,316	)
Other:
Foreign currency translation adjustments	$	(1,718	)	$	(941	)

See accompanying notes

15

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENT OF CHANGES IN CAPITAL

(Amounts in thousands)

(Unaudited)

	Six Months Ended
	June 30, 2014
PARTNERS' CAPITAL
PREFERENCE UNITS
Balance, beginning of year	$	50,000
Balance, end of period	$	50,000
GENERAL PARTNER
Balance, beginning of year	$	10,612,363
OP Unit Issuance:
Conversion of OP Units held by Limited Partners into OP Units held by General Partner	1,430
Exercise of EQR share options	25,685
EQR's Employee Share Purchase Plan (ESPP)	2,218
Share-based employee compensation expense:
EQR restricted shares	6,983
EQR share options	5,330
EQR ESPP discount	587
OP Units repurchased and retired	(1,777		)
Net income available to Units – General Partner	189,753
OP Units – General Partner distributions	(361,279		)
Supplemental Executive Retirement Plan (SERP)	4,212
Acquisition of Noncontrolling Interests – Partially Owned Properties	(2,308		)
Change in market value of Redeemable Limited Partners	(80,615		)
Adjustment for Limited Partners ownership in Operating Partnership	4,146
Balance, end of period	$	10,406,728
LIMITED PARTNERS
Balance, beginning of year	$	211,412
Issuance of LTIP Units to Limited Partners	3
Conversion of OP Units held by Limited Partners into OP Units held by General Partner	(1,430		)
Equity compensation associated with Units – Limited Partners	10,319
Net income available to Units – Limited Partners	7,535
Units – Limited Partners distributions	(14,364		)
Change in carrying value of Redeemable Limited Partners	3,709
Adjustment for Limited Partners ownership in Operating Partnership	(4,146		)
Balance, end of period	$	213,038
ACCUMULATED OTHER COMPREHENSIVE (LOSS)
Balance, beginning of year	$	(155,162	)
Accumulated other comprehensive (loss) – derivative instruments:
Unrealized holding (losses) arising during the period	(21,881		)
Losses reclassified into earnings from other comprehensive income	8,335
Accumulated other comprehensive income – foreign currency:
Currency translation adjustments arising during the period	1,718
Balance, end of period	$	(166,990	)

See accompanying notes

16

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENT OF CHANGES IN CAPITAL (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended
	June 30, 2014
NONCONTROLLING INTERESTS
NONCONTROLLING INTERESTS – PARTIALLY OWNED PROPERTIES
Balance, beginning of year	$	126,583
Net income attributable to Noncontrolling Interests	1,092
Contributions by Noncontrolling Interests	5,684
Distributions to Noncontrolling Interests	(5,272		)
Acquisition of Noncontrolling Interests – Partially Owned Properties	(2,244		)
Balance, end of period	$	125,843

See accompanying notes

17

EQUITY RESIDENTIAL

ERP OPERATING LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1. Business

Equity Residential (“EQR”), a Maryland real estate investment trust (“REIT”) formed in March 1993, is an S&P 500 company focused on the acquisition, development and management of high quality apartment properties in top United States growth markets. ERP Operating Limited Partnership ("ERPOP"), an Illinois limited partnership, was formed in May 1993 to conduct the multifamily residential property business of Equity Residential. EQR has elected to be taxed as a REIT. References to the "Company," "we," "us" or "our" mean collectively EQR, ERPOP and those entities/subsidiaries owned or controlled by EQR and/or ERPOP. References to the "Operating Partnership" mean collectively ERPOP and those entities/subsidiaries owned or controlled by ERPOP. Unless otherwise indicated, the notes to consolidated financial statements apply to both the Company and the Operating Partnership.

EQR is the general partner of, and as of June 30, 2014 owned an approximate 96.2% ownership interest in, ERPOP. All of the Company’s property ownership, development and related business operations are conducted through the Operating Partnership and EQR has no material assets or liabilities other than its investment in ERPOP. EQR issues public equity from time to time but does not have any indebtedness as all debt is incurred by the Operating Partnership. The Operating Partnership holds substantially all of the assets of the Company, including the Company’s ownership interests in its joint ventures. The Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity.

As of June 30, 2014, the Company, directly or indirectly through investments in title holding entities, owned all or a portion of 397 properties located in 12 states and the District of Columbia consisting of 111,491 apartment units. The ownership breakdown includes (table does not include various uncompleted development properties):

	Properties	Apartment Units
Wholly Owned Properties	369	100,210
Master-Leased Properties – Consolidated	3	853
Partially Owned Properties – Consolidated	19	3,752
Partially Owned Properties – Unconsolidated	4	1,669
Military Housing	2	5,007
	397	111,491

2. Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) and certain reclassifications considered necessary for a fair presentation have been included. Certain reclassifications have been made to the prior period financial statements in order to conform to the current year presentation. These reclassifications did not have an impact on net income previously reported. Operating results for the six months ended June 30, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014.

In preparation of the Company’s financial statements in conformity with accounting principles generally accepted in the United States, management makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.

The balance sheets at December 31, 2013 have been derived from the audited financial statements at that date but do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.

18

For further information, including definitions of capitalized terms not defined herein, refer to the consolidated financial statements and footnotes thereto included in the Company’s and the Operating Partnership's annual report on Form 10-K for the year ended December 31, 2013.

Income and Other Taxes

Due to the structure of EQR as a REIT and the nature of the operations of its operating properties, no provision for federal income taxes has been made at the EQR level. In addition, ERPOP generally is not liable for federal income taxes as the partners recognize their proportionate share of income or loss in their tax returns; therefore no provision for federal income taxes has been made at the ERPOP level. Historically, the Company has generally only incurred certain state and local income, excise and franchise taxes. The Company has elected Taxable REIT Subsidiary (“TRS”) status for certain of its corporate subsidiaries and as a result, these entities will incur both federal and state income taxes on any taxable income of such entities after consideration of any net operating losses.

Deferred tax assets and liabilities applicable to the TRS are recognized for future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. These assets and liabilities are measured using enacted tax rates for which the temporary differences are expected to be recovered or settled. The effects of changes in tax rates on deferred tax assets and liabilities are recognized in earnings in the period enacted. The Company’s deferred tax assets are generally the result of tax affected suspended interest deductions, net operating losses, differing depreciable lives on capitalized assets and the timing of expense recognition for certain accrued liabilities. As of June 30, 2014, the Company has recorded a deferred tax asset, which is fully offset by a valuation allowance due to the uncertainty in forecasting future TRS taxable income.

Other

The Company is the controlling partner in various consolidated partnerships owning 19 properties and 3,752 apartment units and various completed and uncompleted development properties having a noncontrolling interest book value of $125.8 million at June 30, 2014. The Company is required to make certain disclosures regarding noncontrolling interests in consolidated limited-life subsidiaries. Of the consolidated entities described above, the Company is the controlling partner in limited-life partnerships owning six properties having a noncontrolling interest deficit balance of $10.2 million. These six partnership agreements contain provisions that require the partnerships to be liquidated through the sale of their assets upon reaching a date specified in each respective partnership agreement. The Company, as controlling partner, has an obligation to cause the property owning partnerships to distribute the proceeds of liquidation to the Noncontrolling Interests in these Partially Owned Properties only to the extent that the net proceeds received by the partnerships from the sale of their assets warrant a distribution based on the partnership agreements. As of June 30, 2014, the Company estimates the value of Noncontrolling Interest distributions for these six properties would have been approximately $53.2 million (“Settlement Value”) had the partnerships been liquidated. This Settlement Value is based on estimated third party consideration realized by the partnerships upon disposition of the six Partially Owned Properties and is net of all other assets and liabilities, including yield maintenance on the mortgages encumbering the properties, that would have been due on June 30, 2014 had those mortgages been prepaid. Due to, among other things, the inherent uncertainty in the sale of real estate assets, the amount of any potential distribution to the Noncontrolling Interests in the Company's Partially Owned Properties is subject to change. To the extent that the partnerships' underlying assets are worth less than the underlying liabilities, the Company has no obligation to remit any consideration to the Noncontrolling Interests in these Partially Owned Properties.

Effective January 1, 2013, companies are required to report, in one place, information about reclassifications out of accumulated other comprehensive income ("AOCI"). Companies are also required to report changes in AOCI balances. For significant items reclassified out of AOCI to net income in their entirety in the same reporting period, reporting is required about the effect of the reclassifications on the respective line items in the statement where net income is presented. For items that are not reclassified to net income in their entirety in the same reporting period, a cross reference to other disclosures currently required under US GAAP is required in the notes. This does not have a material effect on the Company's consolidated results of operations or financial position. See Note 9 for further discussion.

Effective January 1, 2014, companies are required to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount a company agreed to pay on the basis of its arrangement among its co-obligors and any additional amount a company expects to pay on behalf of its co-obligors. Companies are required to disclose the nature and amount of the obligation as well as other information about those obligations. This does not have a material effect on the Company's consolidated results of operations or financial position.

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In April 2014, the Financial Accounting Standards Board (the "FASB") issued new guidance for reporting discontinued operations. Only disposals representing a strategic shift in operations that has a major effect on a company’s operations and financial results will be presented as discontinued operations. Companies will be required to expand their disclosures about discontinued operations to provide more information on the assets, liabilities, income and expenses of the discontinued operations. Companies will also be required to disclose the pre-tax income attributable to a disposal of a significant part of a company that does not qualify for discontinued operations reporting. Application of this guidance is prospective from the date of adoption and early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued. The new standard is effective January 1, 2015 but the Company early adopted it as allowed effective January 1, 2014. Adoption of this standard did not have a material effect on the Company's overall consolidated results of operations or financial position. However, adoption will result in substantially fewer of the Company's dispositions meeting the discontinued operations qualifications. See Note 11 for further discussion.

In May 2014, the FASB issued a comprehensive new revenue recognition standard entitled Revenue from Contracts with Customers that will supersede nearly all existing revenue recognition guidance. The new standard specifically excludes lease contracts. The new standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. Companies will likely need to use more judgment and make more estimates than under current revenue recognition guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration, if any, to include in the transaction price and allocating the transaction price to each separate performance obligation. The new standard will be effective for the Company beginning on January 1, 2017 and early adoption is not permitted. The new standard may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption. The Company has not yet selected a transition method and is currently evaluating the impact of adopting the new standard on its consolidated results of operations and financial position.

3. Equity, Capital and Other Interests

Equity and Redeemable Noncontrolling Interests of Equity Residential

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 six months ended June 30, 2014:

	2014
Common Shares
Common Shares outstanding at January 1,	360,479,260
Common Shares Issued:
Conversion of OP Units	56,536
Exercise of share options	851,514
Employee Share Purchase Plan (ESPP)	47,457
Restricted share grants, net	170,626
Common Shares Other:
Conversion of restricted shares to LTIP Units	(12,146	)
Repurchased and retired	(31,240	)
Common Shares outstanding at June 30,	361,562,007
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	(56,536	)
Units outstanding at June 30,	14,336,826
Total Common Shares and Units outstanding at June 30,	375,898,833
Units Ownership Interest in Operating Partnership	3.8	%

The equity positions of various individuals and entities that contributed their properties to the Operating Partnership in exchange for OP Units, as well as the equity positions of the holders of LTIP Units, are collectively referred to as the “Noncontrolling Interests – Operating Partnership”. Subject to certain exceptions (including the “book-up” requirements of LTIP Units), the Noncontrolling Interests – Operating Partnership may exchange their Units with EQR for Common Shares on a one-for-one basis.

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The carrying value of the Noncontrolling Interests – Operating Partnership (including redeemable interests) is allocated based on the number of Noncontrolling Interests – Operating Partnership Units in total in proportion to the number of Noncontrolling Interests – Operating Partnership Units in total plus the number of Common Shares. Net income is allocated to the Noncontrolling Interests – Operating Partnership based on the weighted average ownership percentage during the period.

The Operating Partnership has the right but not the obligation to make a cash payment instead of issuing Common Shares to any and all holders of Noncontrolling Interests – Operating Partnership Units requesting an exchange of their OP Units with EQR. Once the Operating Partnership elects not to redeem the Noncontrolling Interests – Operating Partnership Units for cash, EQR is obligated to deliver Common Shares to the exchanging holder of the Noncontrolling Interests – Operating Partnership Units.

The Noncontrolling Interests – Operating Partnership Units are classified as either mezzanine equity or permanent equity. If EQR is required, either by contract or securities law, to deliver registered Common Shares, such Noncontrolling Interests – Operating Partnership are differentiated and referred to as “Redeemable Noncontrolling Interests – Operating Partnership”. Instruments that require settlement in registered shares can not be classified in permanent equity as it is not always completely within an issuer’s control to deliver registered shares. Therefore, settlement in cash is assumed and that responsibility for settlement in cash is deemed to fall to the Operating Partnership as the primary source of cash for EQR, resulting in presentation in the mezzanine section of the balance sheet. The Redeemable Noncontrolling Interests – Operating Partnership are adjusted to the greater of carrying value or fair market value based on the Common Share price of EQR at the end of each respective reporting period. EQR has the ability to deliver unregistered Common Shares for the remaining portion of the Noncontrolling Interests – Operating Partnership Units that are classified in permanent equity at June 30, 2014 and December 31, 2013.

The carrying value of the Redeemable Noncontrolling Interests – Operating Partnership is allocated based on the number of Redeemable Noncontrolling Interests – Operating Partnership Units in proportion to the number of Noncontrolling Interests – Operating Partnership Units in total. Such percentage of the total carrying value of Units which is ascribed to the Redeemable Noncontrolling Interests – Operating Partnership is then adjusted to the greater of carrying value or fair market value as described above. As of June 30, 2014, the Redeemable Noncontrolling Interests – Operating Partnership have a redemption value of approximately $440.1 million, which represents the value of Common Shares that would be issued in exchange with the Redeemable Noncontrolling Interests – Operating Partnership Units.

The following table presents the changes in the redemption value of the Redeemable Noncontrolling Interests – Operating Partnership for the six months ended June 30, 2014 (amounts in thousands):

	2014
Balance at January 1,	$	363,144
Change in market value	80,615
Change in carrying value	(3,709		)
Balance at June 30,	$	440,050

Net proceeds from EQR Common Share and Preferred Share (see definition below) offerings are contributed by EQR to ERPOP. In return for those contributions, EQR receives a number of OP Units in ERPOP equal to the number of Common Shares it has issued in the equity offering (or in the case of a preferred equity offering, a number of preference units in ERPOP equal in number and having the same terms as the Preferred Shares issued in the equity offering). As a result, the net offering proceeds from Common Shares and Preferred Shares are allocated between shareholders’ equity and Noncontrolling Interests – Operating Partnership to account for the change in their respective percentage ownership of the underlying equity of ERPOP.

The Company’s declaration of trust authorizes it to issue up to 100,000,000 preferred shares of beneficial interest, $0.01 par value per share (the “Preferred Shares”), with specific rights, preferences and other attributes as the Board of Trustees may determine, which may include preferences, powers and rights that are senior to the rights of holders of the Company’s Common Shares.

The following table presents the Company’s issued and outstanding Preferred Shares as of June 30, 2014 and December 31, 2013:

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				Amounts in thousands
	Redemption Date (1)	Annual Dividend per Share (2)		June 30, 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 June 30, 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.

Capital and Redeemable Limited Partners of ERP Operating Limited Partnership

The following tables present the changes in the Operating Partnership’s issued and outstanding Units and in the limited partners’ Units for the six months ended June 30, 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	851,514
EQR’s Employee Share Purchase Plan (ESPP)	47,457
EQR's restricted share grants, net	170,626
Issued to Limited Partners:
LTIP Units, net	200,840
OP Units Other:
Repurchased and retired	(31,240	)
General and Limited Partner Units outstanding at June 30,	375,898,833
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	(56,536	)
Limited Partner Units outstanding at June 30,	14,336,826
Limited Partner Units Ownership Interest in Operating Partnership	3.8	%

The Limited Partners of the Operating Partnership as of June 30, 2014 include various individuals and entities that contributed their properties to the Operating Partnership in exchange for OP Units, as well as the equity positions of the holders of LTIP Units. Subject to certain exceptions (including the “book-up” requirements of LTIP Units), Limited Partners may exchange their Units with EQR for Common Shares on a one-for-one basis. The carrying value of the Limited Partner Units (including redeemable interests) is allocated based on the number of Limited Partner Units in total in proportion to the number of Limited Partner Units in total plus the number of General Partner Units. Net income is allocated to the Limited Partner Units based on the weighted average ownership percentage during the period.

The Operating Partnership has the right but not the obligation to make a cash payment instead of issuing Common Shares to any and all holders of Limited Partner Units requesting an exchange of their OP Units with EQR. Once the Operating Partnership elects not to redeem the Limited Partner Units for cash, EQR is obligated to deliver Common Shares to the exchanging limited partner.

The Limited Partner Units are classified as either mezzanine equity or permanent equity. If EQR is required, either by contract or securities law, to deliver registered Common Shares, such Limited Partner Units are differentiated and referred to as “Redeemable Limited Partner Units”. Instruments that require settlement in registered shares can not be classified in permanent

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equity as it is not always completely within an issuer's control to deliver registered shares. Therefore, settlement in cash is assumed and that responsibility for settlement in cash is deemed to fall to the Operating Partnership as the primary source of cash for EQR, resulting in presentation in the mezzanine section of the balance sheet. The Redeemable Limited Partner Units are adjusted to the greater of carrying value or fair market value based on the Common Share price of EQR at the end of each respective reporting period. EQR has the ability to deliver unregistered Common Shares for the remaining portion of the Limited Partner Units that are classified in permanent equity at June 30, 2014 and December 31, 2013.

The carrying value of the Redeemable Limited Partner Units is allocated based on the number of Redeemable Limited Partner Units in proportion to the number of Limited Partner Units in total. Such percentage of the total carrying value of Limited Partner Units which is ascribed to the Redeemable Limited Partner Units is then adjusted to the greater of carrying value or fair market value as described above. As of June 30, 2014, the Redeemable Limited Partner Units have a redemption value of approximately $440.1 million, which represents the value of Common Shares that would be issued in exchange with the Redeemable Limited Partner Units.

The following table presents the changes in the redemption value of the Redeemable Limited Partners for the six months ended June 30, 2014 (amounts in thousands):

	2014
Balance at January 1,	$	363,144
Change in market value	80,615
Change in carrying value	(3,709		)
Balance at June 30,	$	440,050

EQR contributes all net proceeds from its various equity offerings (including proceeds from exercise of options for Common Shares) to ERPOP. In return for those contributions, EQR receives a number of OP Units in ERPOP equal to the number of Common Shares it has issued in the equity offering (or in the case of a preferred equity offering, a number of preference units in ERPOP equal in number and having the same terms as the preferred shares issued in the equity offering).

The following table presents the Operating Partnership’s issued and outstanding “Preference Units” as of June 30, 2014 and December 31, 2013:

				Amounts in thousands
	Redemption Date (1)	Annual Dividend per Unit (2)		June 30, 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 June 30, 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.

Other

On February 27, 2013, the Company issued 34,468,085 Common Shares to an affiliate of Lehman Brothers Holdings Inc. as partial consideration for the portion of the Archstone Portfolio acquired by the Company (as discussed in Note 4 below). The shares had a total value of $1.9 billion based on the February 27, 2013 closing price of EQR Common Shares of $55.99 per share. Concurrent with this transaction, ERPOP issued 34,468,085 OP Units to EQR. On March 7, 2013, EQR filed a shelf registration statement relating to the resale of these shares by the selling shareholders.

In September 2009, the Company announced the establishment of an At-The-Market (“ATM”) share offering program which would allow EQR to sell Common Shares from time to time into the existing trading market at current market prices as well as through negotiated transactions. Per the terms of ERPOP's partnership agreement, EQR contributes the net proceeds from all equity offerings to the capital of ERPOP in exchange for additional OP Units (on a one-for-one Common Share per OP Unit basis). On July 30, 2013, the Board of Trustees approved an increase to the amount of shares which may be offered under the ATM

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program to 13.0 million Common Shares and extended the program maturity to July 2016. EQR has not issued any shares under this program since September 14, 2012.

Effective July 30, 2013, the Board of Trustees approved an increase and modification to the Company's share repurchase program to allow for the potential repurchase of up to 13.0 million Common Shares. Considering the repurchase activity for the six months ended June 30, 2014 (see discussion below), EQR has remaining authorization to repurchase an additional 12,968,760 of its shares as of June 30, 2014.

During the six months ended June 30, 2014, EQR repurchased 31,240 of its Common Shares at a price of $56.87 per share for total consideration of approximately $1.8 million. These shares were retired subsequent to the repurchases. Concurrent with these transactions, ERPOP repurchased and retired 31,240 OP Units previously issued to EQR. All of the shares repurchased during the six months ended June 30, 2014 were repurchased from employees at the then current market price to cover the minimum statutory tax withholding obligations related to the vesting of employees’ restricted shares. 

During the six months ended June 30, 2014, the Company acquired all of its partners' interests in one consolidated partially owned property consisting of 268 apartment units and one consolidated partially owned land parcel for $5.5 million. In conjunction with these transactions, the Company reduced paid in capital (included in general partner's capital in the Operating Partnership's financial statements) by $2.3 million, Noncontrolling Interests – Partially Owned Properties by $2.2 million and other liabilities by $1.0 million.

See Note 6 for a discussion of the Noncontrolling Interests assumed in conjunction with the acquisition of Archstone.

4. Real Estate and Lease Intangibles

The following table summarizes the carrying amounts for the Company’s investment in real estate (at cost) as of June 30, 2014 and December 31, 2013 (amounts in thousands):

	June 30, 2014			December 31, 2013
Land	$	6,296,735		$	6,192,512
Depreciable property:
Buildings and improvements	17,920,222			17,509,609
Furniture, fixtures and equipment	1,302,882			1,214,220
In-Place lease intangibles	507,633			502,218
Projects under development:
Land	391,156			353,574
Construction-in-progress	615,836			635,293
Land held for development:
Land	256,536			341,389
Construction-in-progress	50,089			52,133
Investment in real estate	27,341,089			26,800,948
Accumulated depreciation	(5,170,438		)	(4,807,709		)
Investment in real estate, net	$	22,170,651		$	21,993,239

The following table summarizes the carrying amounts for the Company's above and below market ground and retail lease intangibles as of June 30, 2014 and December 31, 2013 (amounts in thousands):

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Description	Balance Sheet Location	June 30, 2014			December 31, 2013
Assets
Ground lease intangibles – below market	Other Assets	$	178,251		$	178,251
Retail lease intangibles – above market	Other Assets	1,260			1,260
Lease intangible assets		179,511			179,511
Accumulated amortization		(6,641		)	(4,364		)
Lease intangible assets, net		$	172,870		$	175,147
Liabilities
Ground lease intangibles – above market	Other Liabilities	$	2,400		$	2,400
Retail lease intangibles – below market	Other Liabilities	5,270			5,500
Lease intangible liabilities		7,670			7,900
Accumulated amortization		(1,678		)	(1,161		)
Lease intangible liabilities, net		$	5,992		$	6,739

During the six months ended June 30, 2014 and 2013, the Company amortized approximately $2.2 million and $1.4 million, respectively, of above and below market ground lease intangibles which is included (net increase) in property and maintenance expense in the accompanying consolidated statements of operations and comprehensive income and approximately $0.6 million and $0.2 million, respectively, of above and below market retail lease intangibles which is included (net increase) in rental income in the accompanying consolidated statements of operations and comprehensive income. During the quarters ended June 30, 2014 and 2013, the Company amortized approximately $1.1 million and $1.0 million, respectively, of above and below market ground lease intangibles which is included (net increase) in property and maintenance expense in the accompanying consolidated statements of operations and comprehensive income and approximately $0.3 million and $0.1 million, respectively, of above and below market retail lease intangibles which is included (net increase) in rental income in the accompanying consolidated statements of operations and comprehensive income.

The weighted average amortization period for above and below market ground lease intangibles and retail lease intangibles is 49.8 years and 2.8 years, respectively.

The following table provides a summary of the aggregate amortization expense for above and below market ground lease intangibles and retail lease intangibles for each of the next five years (amounts in thousands):

	Remaining
	2014			2015			2016			2017			2018			2019
Ground lease intangibles	$	2,161		$	4,321		$	4,321		$	4,321		$	4,321		$	4,321
Retail lease intangibles	(469		)	(939		)	(896		)	(540		)	(71		)	(71		)
Total	$	1,692		$	3,382		$	3,425		$	3,781		$	4,250		$	4,250

Archstone Acquisition

On February 27, 2013, the Company, AvalonBay Communities, Inc. (“AVB”) and certain of their respective subsidiaries completed their previously announced acquisition (the “Archstone Acquisition” or the “Archstone Transaction”) from Archstone Enterprise LP (“Enterprise”) (which subsequently changed its name to Jupiter Enterprise LP), an affiliate of Lehman Brothers Holdings Inc. (“Lehman”) and its affiliates, of all of the assets of Enterprise (including interests in various entities affiliated with Enterprise), constituting a portfolio of apartment properties and other assets (the “Archstone Portfolio”).

The Company acquired assets representing approximately 60% of the Archstone Portfolio which consisted principally of high-quality apartment properties in major markets in the United States. The acquisition allowed the Company to accelerate the completion of its strategic shift into coastal apartment markets. Pursuant to the Archstone Transaction, the Company acquired directly or indirectly, 71 wholly owned, stabilized properties consisting of 20,160 apartment units, one partially owned and consolidated stabilized property consisting of 432 apartment units, one partially owned and unconsolidated stabilized property consisting of 336 apartment units, three consolidated master-leased properties consisting of 853 apartment units, four projects in various stages of construction (two consolidated and two unconsolidated) for 964 apartment units and fourteen land sites for

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approximately $9.0 billion. During the six months ended June 30, 2013, the Company recorded revenues and net operating income ("NOI") of $204.5 million and $140.0 million, respectively, from the acquired assets. During the quarter ended June 30, 2013, the Company recorded revenues and NOI of $151.9 million and $103.9 million, respectively, from the acquired assets.

The consideration paid by the Company in connection with the Archstone Acquisition consisted of cash of approximately $4.0 billion (inclusive of $2.0 billion of Archstone secured mortgage principal paid off in conjunction with the closing), 34,468,085 Common Shares (which shares had a total value of $1.9 billion based on the February 27, 2013 closing price of EQR common shares of $55.99 per share) issued to the seller and the assumption of approximately $3.1 billion of mortgage debt (inclusive of a net mark-to-market premium of $127.9 million) and approximately 60% of all of the other assets and liabilities related to the Archstone Portfolio. The cash consideration was funded with proceeds from the issuance of 21,850,000 Common Shares (which shares had a total value of approximately $1.2 billion based on a price of $54.75 per share) in the November/December 2012 public equity offering, asset sales of approximately $4.5 billion that were completed during the year ended December 31, 2013, the Company's $750.0 million unsecured term loan facility (which was subsequently paid off in the second quarter of 2014) and the Company's revolving credit facility.

The Company owns the building and improvements and leases the land underlying the improvements under long-term ground leases that expire beginning in 2042 and running through 2103 for nine of the operating properties acquired and discussed above. These properties are consolidated and reflected as real estate assets while the ground leases are accounted for as operating leases. The Company also leases the three master-leased properties discussed above to third party operators and earns monthly net rental income.

The Company accounted for the acquisition under the acquisition method in accordance with Accounting Standards Codification ("ASC") 805, Business Combinations (“ASC 805”), and the accounting for this business combination is complete and final. The following table summarizes the acquisition date fair values of the assets acquired and liabilities assumed, which the Company determined using Level 1, Level 2 and Level 3 inputs (amounts in thousands):

Land	$	2,239,000
Depreciable property:
Buildings and improvements	5,765,538
Furniture, fixtures and equipment	61,470
In-Place lease intangibles	304,830
Projects under development	36,583
Land held for development	244,097
Investments in unconsolidated entities	230,608
Other assets	195,260
Other liabilities	(108,997		)
Net assets acquired	$	8,968,389

The allocation of fair values of the assets acquired and liabilities assumed has changed from the allocation reported in “Note 4 – Real Estate and Lease Intangibles” in the Notes to Consolidated Financial Statements included in Part II of our Annual Report on Form 10-K for the year ended December 31, 2013 filed with the SEC on February 27, 2014. The changes to our valuation assumptions were based on more accurate information concerning the subject assets and liabilities and resulted from information not readily available at the acquisition date, final purchase price settlement with our partner in accordance with the terms of the purchase agreement and reclassification adjustments for presentation. None of these changes had a material impact on our Consolidated Financial Statements. The Company's assessment of the fair values and the allocation of the purchase price to the identified tangible and intangible assets/liabilities at March 31, 2014 was its final and best estimate of fair value. As a result, the Company did not make any changes to its allocation of fair values of the assets acquired and liabilities assumed subsequent to the allocation reported in "Note 4 – Real Estate and Lease Intangibles" in the Notes to Consolidated Financial Statements included in Part I of our Quarterly Report on Form 10-Q for the quarter ended March 31, 2014 filed with the SEC on May 8, 2014.

The fair values of investment in real estate were determined using internally developed models that were based on market assumptions and comparable sales data as well as external valuations performed by unrelated third parties. The market assumptions used as inputs to the Company’s fair value model include construction costs, leasing assumptions, growth rates, discount rates, terminal capitalization rates and development yields. The Company used data on its existing portfolio of properties and its recent acquisition and development properties, as well as similar market data from third party sources, when available, in determining

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these inputs (Level 2 and 3). The fair value of Noncontrolling Interests was calculated similar to the investment in real estate described above. The fair value of mortgage debt was calculated using indicative rates, leverage and coverage provided by lenders of similar loans (Level 2). The Common Shares issued to an affiliate of Lehman Brothers Holdings Inc. were valued using the quoted market price of Common Shares (Level 1).

The following table summarizes the acquisition date fair values of the above and below market ground and retail lease intangibles, which we determined using Level 2 and Level 3 inputs (amounts in thousands):

Description	Balance Sheet Location	Fair Value
Ground lease intangibles – below market	Other Assets	$	178,251
Retail lease intangibles – above market	Other Assets	1,260
Ground lease intangibles – above market	Other Liabilities	2,400
Retail lease intangibles – below market	Other Liabilities	8,040

As of June 30, 2014, the Company has incurred cumulative Archstone-related expenses of approximately $100.9 million, of which approximately $13.5 million of this total was financing-related and approximately $87.4 million was merger costs. During the six months ended June 30, 2014, the Company expensed nominal amounts of direct merger costs. During the six months ended June 30, 2013, the Company expensed $19.6 million of direct merger costs primarily related to investment banking and legal/accounting fees, which were included in other expenses in the accompanying consolidated statements of operations and comprehensive income. During the six months ended June 30, 2014 and 2013, the Company also expensed $6.2 million and $53.0 million, respectively, of indirect merger costs primarily related to severance and retention obligations, office leases and German operations/sales that were incurred through our 60% interest in unconsolidated joint ventures with AVB, which were included in (loss) from investments in unconsolidated entities in the accompanying consolidated statements of operations and comprehensive income. Finally, during the six months ended June 30, 2013, the Company also expensed $2.5 million of financing-related costs, which were included in interest expense in the accompanying consolidated statements of operations and comprehensive income.

Unaudited Pro Forma Financial Information

Equity Residential

The following table illustrates the effect on net income, earnings per share – basic and earnings per share – diluted as if the Company had consummated the Archstone Acquisition as of January 1, 2012 (amounts in thousands, except per share amounts):

	Six Months Ended		Quarter Ended
	June 30, 2013		June 30, 2013
Total revenues	$	1,256,088	$	635,078
Income from continuing operations	60,541		96,585
Discontinued operations, net	1,608,374		389,329
Net income	1,668,915		485,914
Net income available to Common Shares	1,601,368		467,237
Earnings per share - basic:
Net income available to Common Shares	$	4.45	$	1.30
Weighted average Common Shares outstanding (1)	359,509		359,653
Earnings per share - diluted:
Net income available to Common Shares	$	4.44	$	1.29
Weighted average Common Shares outstanding (1)	375,722		375,910

(1) Includes an adjustment for Common Shares issued to the public in November/December 2012 and to an affiliate of Lehman Brothers Holdings Inc. in February 2013 as partial consideration for the Archstone Acquisition.

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ERP Operating Limited Partnership

The following table illustrates the effect on net income, earnings per Unit – basic and earnings per Unit – diluted as if the Operating Partnership had consummated the Archstone Acquisition as of January 1, 2012 (amounts in thousands, except per Unit amounts):

	Six Months Ended		Quarter Ended
	June 30, 2013		June 30, 2013
Total revenues	$	1,256,088	$	635,078
Income from continuing operations	60,541		96,585
Discontinued operations, net	1,608,374		389,329
Net income	1,668,915		485,914
Net income available to Units	1,668,439		485,693
Earnings per Unit - basic:
Net income available to Units	$	4.45	$	1.30
Weighted average Units outstanding (1)	373,245		373,403
Earnings per Unit - diluted:
Net income available to Units	$	4.44	$	1.29
Weighted average Units outstanding (1)	375,722		375,910

(1) Includes an adjustment for Common Shares issued to the public in November/December 2012 and to an affiliate of Lehman Brothers Holdings Inc. in February 2013 as partial consideration for the Archstone Acquisition. Concurrent with these transactions, ERPOP issued the same number of OP Units to EQR.

For the six months ended June 30, 2013, acquisition costs of $19.6 million and severance/retention and other costs of $50.9 million related to the Archstone Acquisition are not expected to have a continuing impact on the Company's financial results and therefore have been excluded from these pro forma results. The pro forma results also do not include the impact of any synergies or lower borrowing costs that the Company has or may achieve as a result of the acquisition or any strategies that management has or may consider in order to more efficiently manage the Company's operations, nor do they give pro forma effect to any other acquisitions, dispositions or capital markets transactions (excluding the equity offering in November/December 2012 which proceeds were used for the Archstone Acquisition) that the Company completed during the periods presented. These pro forma results are not necessarily indicative of the operating results that would have been obtained had the Archstone Acquisition occurred at the beginning of the periods presented, nor are they necessarily indicative of future operating results.

Other

During the six months ended June 30, 2014, the Company acquired the entire equity interest in the following from unaffiliated parties (purchase price in thousands):

	Properties	Apartment Units	Purchase Price
Rental Properties – Consolidated	3	772	$	249,610
Land Parcels – Consolidated	—	—	15,790
Total	3	772	$	265,400

During the six months ended June 30, 2014, the Company disposed of the following to unaffiliated parties (sales price in thousands):

	Properties	Apartment Units	Sales Price
Rental Properties	1	336	$	40,850
Land Parcel	—	—	8,200
Total	1	336	$	49,050

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The Company recognized a net gain on sales of real estate properties of approximately $14.9 million and a net gain on sales of land parcels of approximately $0.8 million on the above sales.

5. Commitments to Acquire/Dispose of Real Estate

In addition to the land parcel that was subsequently acquired as discussed in Note 14, the Company has entered into a separate agreement to acquire the following (purchase price in thousands):

	Properties	Apartment Units	Purchase Price
Land Parcel	—	—	$	3,300
Total	—	—	$	3,300

The Company has entered into separate agreements to dispose of the following (sales price in thousands):

	Properties	Apartment Units	Sales Price
Rental Properties	6	2,005	$	306,350
Land Parcel	—	—	54,402
Total	6	2,005	$	360,752

The closings of these pending transactions are subject to certain conditions and restrictions, therefore, there can be no assurance that these transactions will be consummated or that the final terms will not differ in material respects from those summarized in the preceding paragraphs.

6. Investments in Partially Owned Entities

The Company has co-invested in various properties with unrelated third parties which are either consolidated or accounted for under the equity method of accounting (unconsolidated). The following tables and information summarize the Company’s investments in partially owned entities as of June 30, 2014 (amounts in thousands except for project and apartment unit amounts):

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	Consolidated								Unconsolidated
	Development Projects								Development Projects
	Held for and/or Under Development		Operating			Total			Held for and/or Under Development		Completed, Not Stabilized (3)			Operating			Total
Total projects (1)	—		19			19			—		2			2			4
Total apartment units (1)	—		3,752			3,752			—		945			724			1,669
Balance sheet information at 6/30/14 (at 100%):
ASSETS
Investment in real estate	$	329,668	$	676,848		$	1,006,516		$	55,998	$	233,411		$	108,164		$	397,573
Accumulated depreciation	—		(183,571		)	(183,571		)	—		(6,693		)	(7,136		)	(13,829		)
Investment in real estate, net	329,668		493,277			822,945			55,998		226,718			101,028			383,744
Cash and cash equivalents	4,488		14,125			18,613			454		2,830			1,582			4,866
Investments in unconsolidated entities	—		53,209			53,209			—		—			—			—
Deposits – restricted	34,761		250			35,011			—		130			47			177
Deferred financing costs, net	—		2,318			2,318			53		4			122			179
Other assets	6,679		26,176			32,855			14		41			1,250			1,305
Total assets	$	375,596	$	589,355		$	964,951		$	56,519	$	229,723		$	104,029		$	390,271
LIABILITIES AND EQUITY/CAPITAL
Mortgage notes payable (2)	$	—	$	360,305		$	360,305		$	21,982	$	145,016		$	63,305		$	230,303
Accounts payable & accrued expenses	12,313		1,730			14,043			5,095		955			350			6,400
Accrued interest payable	—		1,265			1,265			43		687			42			772
Other liabilities	140		1,252			1,392			—		244			1,046			1,290
Security deposits	—		1,916			1,916			—		279			140			419
Total liabilities	12,453		366,468			378,921			27,120		147,181			64,883			239,184
Noncontrolling Interests – Partially Owned Properties/Partners' equity	117,677		8,166			125,843			27,858		70,428			23,434			121,720
Company equity/General and Limited Partners' Capital	245,466		214,721			460,187			1,541		12,114			15,712			29,367
Total equity/capital	363,143		222,887			586,030			29,399		82,542			39,146			151,087
Total liabilities and equity/capital	$	375,596	$	589,355		$	964,951		$	56,519	$	229,723		$	104,029		$	390,271

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	Consolidated									Unconsolidated
	Development Projects									Development Projects
	Held for and/or Under Development									Held for and/or Under Development						Operating
													Completed, Not Stabilized (3)
				Operating			Total												Total
Operating information for the six months ended 6/30/14 (at 100%):
Operating revenue	$	—		$	43,110		$	43,110		$	—		$	7,958		$	5,060		$	13,018
Operating expenses	154			12,825			12,979			132			3,287			1,856			5,275
Net operating (loss) income	(154		)	30,285			30,131			(132		)	4,671			3,204			7,743
Depreciation	—			10,768			10,768			—			5,299			2,039			7,338
General and administrative/other	(3		)	26			23			—			1			122			123
Operating (loss) income	(151		)	19,491			19,340			(132		)	(629		)	1,043			282
Interest and other income	—			3			3			—			—			—			—
Other expenses	(76		)	(32		)	(108		)	—			—			—			—
Interest:
Expense incurred, net	—			(7,788		)	(7,788		)	—			(3,864		)	(926		)	(4,790		)
Amortization of deferred financing costs	—			(177		)	(177		)	—			—			(7		)	(7		)
(Loss) income before income and other taxes and (loss) from investments in unconsolidated entities	(227		)	11,497			11,270			(132		)	(4,493		)	110			(4,515		)
Income and other tax (expense) benefit	—			(45		)	(45		)	—			(7		)	—			(7		)
(Loss) from investments in unconsolidated entities	—			(879		)	(879		)	—			—			—			—
Net (loss) income	$	(227	)	$	10,573		$	10,346		$	(132	)	$	(4,500	)	$	110		$	(4,522	)

(1) Project and apartment unit counts exclude all uncompleted development projects until those projects are substantially completed.

(2) All debt is non-recourse to the Company with the exception of 50% of the current $22.0 million outstanding debt balance on one unconsolidated development project.

(3) Projects included here are substantially complete. However, they may still require additional exterior and interior work for all units to be available for leasing.

Note: The above tables exclude the Company's interests in unconsolidated joint ventures entered into with AVB in connection with the Archstone Transaction. These ventures own certain non-core Archstone assets that are held for sale and succeeded to certain residual Archstone liabilities, such as liability for various employment-related matters as well as responsibility for tax protection arrangements and third-party preferred interests in former Archstone subsidiaries. The preferred interests have an aggregate liquidation value of $76.8 million at June 30, 2014. The ventures are owned 60% by the Company and 40% by AVB.

The Company is the controlling partner in various consolidated partnership properties and development properties having a noncontrolling interest book value of $125.8 million at June 30, 2014. The Company does not have any VIEs.

Archstone Acquisition

On February 27, 2013, in conjunction with the Archstone Acquisition, the Company acquired interests in several joint ventures. Details of these interests follow by project:

East Palmetto Park – This venture was formed to ultimately develop certain land parcels into a 377 unit apartment building located in Boca Raton, Florida. The Company has a 90% equity interest with an initial basis of $20.2 million. The Company is the managing member, is responsible for constructing the project and its partner does not have substantive kick-out or participating rights. As a result, the entity is required to be consolidated on the Company's balance sheet.

Wisconsin Place – This project contains a mixed-use site located in Chevy Chase, Maryland consisting of residential, retail, office and accessory uses, including underground parking facilities. The Company has a 75% equity interest with an initial basis of $198.5 million in the 432 unit residential component. The Company is the managing member, was responsible for constructing the residential project and its partner does not have substantive kick-out or participating rights. As a result, the entity that owns the residential component of this mixed-use site is required to be consolidated on the Company's balance sheet. Such entity also retains an unconsolidated interest in an entity that owns the land underlying the entire project and owns and operates the parking facility.

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The initial fair value of this investment is $56.5 million. The Company does not have any ownership interest in the retail and office components.

San Norterra – This venture developed certain land parcels into a 388 unit apartment building located in Phoenix, Arizona and was completed and stabilized during the quarter ended June 30, 2014. The Company has an 85% equity interest with an initial basis of $16.9 million. Total project costs were approximately $52.8 million and construction was partially funded with a construction loan that was guaranteed by the partner and non-recourse to the Company. The loanhas a maximum debt commitment of $34.8 million and a current unconsolidated outstanding balance of $33.0 million; the loan bears interest at LIBOR plus 2.00% and matures January 6, 2015. The partner is the managing member and developed the project. The Company does not have substantive kick-out or participating rights. As a result, the entity is unconsolidated and recorded using the equity method of accounting.

Waterton Tenside – This venture was formed to develop and operate a 336 unit apartment property located in Atlanta, Georgia. The Company has a 20% equity interest with an initial basis of $5.1 million. The partner is the managing member and developed the project. The project is encumbered by a non-recourse mortgage loan that has a current outstanding balance of $30.3 million, bears interest at 3.66% and matures December 1, 2018. The Company does not have substantive kick-out or participating rights. As a result, the entity is unconsolidated and recorded using the equity method of accounting.

Parc on Powell (formerly known as 1333 Powell) – This venture is currently developing certain land parcels into a 176 unit apartment building located in Emeryville, California. The Company has a 5% equity interest with an initial obligation of approximately $2.1 million. Total project costs are expected to be approximately $75.0 million and construction is being partially funded with a construction loan. The loan has a maximum debt commitment of $39.5 million and a current unconsolidated outstanding balance of $22.0 million; the loan bears interest at LIBOR plus 2.25% and matures August 14, 2015. The Company has given a repayment guaranty on the construction loan of 50% of the outstanding balance, up to a maximum of $19.7 million, and has given certain construction cost overrun guarantees. The partner is the managing member. The Company does not have substantive kick-out or participating rights. As a result, the entity is unconsolidated and recorded using the equity method of accounting.

On February 27, 2013, in connection with the Archstone Acquisition, subsidiaries of the Company and AVB entered into three limited liability company agreements (collectively, the “Residual JV”). The Residual JV owns certain non-core Archstone assets, such as interests in a six property portfolio of apartment buildings and succeeded to certain residual Archstone liabilities, such as liability for various employment-related matters. The Residual JV is owned 60% by the Company and 40% by AVB and the Company's initial investment was $147.6 million. The Residual JV is managed by a Management Committee consisting of two members from each of the Company and AVB. Both partners have equal participation in the Management Committee and all significant participating rights are shared by both partners. As a result, the Residual JV is unconsolidated and recorded using the equity method of accounting.

During the six months ended June 30, 2014, the Company closed on the sale of its unconsolidated interest in the German portfolio fund and the German management company, representing the sale of the majority of the remaining German real estate assets that were acquired by the Residual JV as part of the Archstone Acquisition. The Company's pro rata share of the proceeds/distributions that have been repatriated to the Residual JV and received by the Company as a result of the German dispositions was approximately $64.7 million during the six months ended June 30, 2014 and $83.6 million cumulatively since the closing of the Archstone Acquisition.

On February 27, 2013, in connection with the Archstone Acquisition, a subsidiary of the Company and AVB entered into a limited liability company agreement (the “Legacy JV”), through which they assumed obligations of Archstone in the form of preferred interests, some of which are governed by tax protection arrangements. During the year ended December 31, 2013, the Company purchased with AVB $65.0 million (of which the Company's 60% share was $39.0 million) of the preferred interests assumed by Legacy JV. At June 30, 2014, the remaining preferred interests have an aggregate liquidation value of $76.8 million, our share of which is included in other liabilities in the accompanying consolidated balance sheets. Obligations of the Legacy JV are borne 60% by the Company and 40% by AVB. The Legacy JV is managed by a Management Committee consisting of two members from each of the Company and AVB. Both partners have equal participation in the Management Committee and all significant participating rights are shared by both partners. As a result, the Legacy JV is unconsolidated and recorded using the equity method of accounting.

Other

In December 2011, the Company and Toll Brothers (NYSE: TOL) jointly acquired a vacant land parcel at 400 Park Avenue South in New York City. The Company's and Toll Brothers' allocated portions of the purchase price were approximately $76.1 million and $57.9 million, respectively. The Company is the managing member and Toll Brothers does not have substantive kick-out or participating rights. Until the core and shell of the building is complete, the building and land will be owned jointly and are

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required to be consolidated on the Company's balance sheet. Thereafter, the Company will solely own and control the rental portion of the building (floors 2-22) and Toll Brothers will solely own and control the for sale portion of the building (floors 23-40). Once the core and shell are complete, the Toll Brothers' portion of the property will be deconsolidated from the Company's balance sheet. The acquisition was financed through contributions by the Company and Toll Brothers of approximately $102.5 million and $75.7 million, respectively, which included the land purchase noted above, restricted deposits and taxes and fees. As of June 30, 2014, the Company's and Toll Brothers' consolidated contributions to the joint venture were approximately $327.9 million, of which Toll Brothers' noncontrolling interest balance totaled $117.4 million.

The Company admitted an 80% institutional partner to two separate entities/transactions (Nexus Sawgrass in December 2010 and Domain in August 2011), each owning a developable land parcel, in exchange for $40.1 million in cash and retained a 20% equity interest in both of these entities. These projects are now unconsolidated. Details of these projects follow:

• Nexus Sawgrass – This development project is substantially complete. Total project costs are expected to be approximately $79.0 million and construction was predominantly funded with a long-term, non-recourse secured loan from the partner. The mortgage loan has a maximum debt commitment of $48.7 million and a current unconsolidated outstanding balance of $48.6 million; the loan bears interest at 5.60% and matures January 1, 2021.

• Domain – This development project is substantially complete. Total project costs are expected to be approximately $155.8 million and construction was predominantly funded with a long-term, non-recourse secured loan from the partner. The mortgage loan has a maximum debt commitment of $98.6 million and a current unconsolidated outstanding balance of $96.4 million; the loan bears interest at 5.75% and matures January 1, 2022.

While the Company is the managing member of both of the joint ventures, was responsible for constructing both of the projects and has given certain construction cost overrun guarantees, the joint venture partner has significant participating rights and has active involvement in and oversight of the ongoing projects. The Company currently has no further funding obligations related to these projects.

7. Deposits – Restricted and Escrow Deposits – Mortgage

The following table presents the Company’s restricted deposits as of June 30, 2014 and December 31, 2013 (amounts in thousands):

	June 30, 2014		December 31, 2013
Earnest money on pending acquisitions	$	830	$	4,514
Restricted deposits on real estate investments	36,476		53,771
Resident security and utility deposits	46,597		44,777
Other	505		505
Totals	$	84,408	$	103,567

The following table presents the Company’s escrow deposits as of June 30, 2014 and December 31, 2013 (amounts in thousands):

	June 30, 2014		December 31, 2013
Real estate taxes and insurance	$	3,500	$	3,687
Replacement reserves	3,469		4,229
Mortgage principal reserves/sinking funds	37,448		33,868
Other	852		852
Totals	$	45,269	$	42,636

8.    Debt

EQR does not have any indebtedness as all debt is incurred by the Operating Partnership. EQR guarantees the Operating Partnership’s revolving credit facility up to the maximum amount and for the full term of the facility.

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Mortgage Notes Payable

As of June 30, 2014, the Company had outstanding mortgage debt of approximately $5.2 billion.

During the six months ended June 30, 2014, the Company:

▪ Repaid $9.1 million of mortgage loans.

As of June 30, 2014, the Company had $700.5 million of secured debt subject to third party credit enhancement.

As of June 30, 2014, scheduled maturities for the Company’s outstanding mortgage indebtedness were at various dates through May 1, 2061. At June 30, 2014, the interest rate range on the Company’s mortgage debt was 0.03% to 7.25%. During the six months ended June 30, 2014, the weighted average interest rate on the Company’s mortgage debt was 4.23%.

Notes

As of June 30, 2014, the Company had outstanding unsecured notes of approximately $5.9 billion.

During the six months ended June 30, 2014, the Company:

▪ Repaid its $750.0 million unsecured term loan facility in conjunction with the note issuances discussed below;

▪ Issued $450.0 million of five-year 2.375% fixed rate public notes, receiving net proceeds of $449.6 million before underwriting fees and other expenses, at an all-in effective interest rate of 2.52% and swapped the notes to a floating interest rate in conjunction with the issuance (see Note 9 for further discussion); and

▪ Issued $750.0 million of thirty-year 4.50% fixed rate public notes, receiving net proceeds of $744.7 million before underwriting fees, hedge termination costs and other expenses, at an all-in effective interest rate of 4.57% after termination of various forward starting swaps in conjunction with the issuance (see Note 9 for further discussion).

As of June 30, 2014, scheduled maturities for the Company’s outstanding notes were at various dates through 2044. At June 30, 2014, the interest rate range on the Company’s notes was 2.375% to 7.57%. During the six months ended June 30, 2014, the weighted average interest rate on the Company’s notes was 4.97%.

Lines of Credit

On January 11, 2013, the Company replaced its existing $1.75 billion facility with a $2.5 billion unsecured revolving credit facility maturing April 1, 2018. The Company has the ability to increase available borrowings by an additional $500.0 million by adding additional banks to the facility or obtaining the agreement of existing banks to increase their commitments. The interest rate on advances under the facility will generally be LIBOR plus a spread (currently 1.05%) and the Company pays an annual facility fee (currently 15 basis points). Both the spread and the facility fee are dependent on the credit rating of the Company's long-term debt.

As of June 30, 2014, the amount available on the credit facility was $2.47 billion (net of $34.8 million which was restricted/dedicated to support letters of credit). During the six months ended June 30, 2014, the weighted average interest rate was 0.96%.

9. Derivative and Other Fair Value Instruments

The valuation of financial instruments requires the Company to make estimates and judgments that affect the fair value of the instruments. The Company, where possible, bases the fair values of its financial instruments, including its derivative instruments, on listed market prices and third party quotes. Where these are not available, the Company bases its estimates on current instruments with similar terms and maturities or on other factors relevant to the financial instruments.

The carrying values of the Company’s mortgage notes payable and unsecured notes were approximately $5.2 billion and $5.9 billion, respectively, at June 30, 2014. The fair values of the Company’s mortgage notes payable and unsecured notes were approximately $5.2 billion (Level 2) and $6.4 billion (Level 2), respectively, at June 30, 2014. The carrying values of the Company's mortgage notes payable and unsecured debt (including its line of credit) were approximately $5.2 billion and $5.6 billion, respectively, at December 31, 2013. The fair values of the Company’s mortgage notes payable and unsecured debt (including its line of credit) were approximately $5.1 billion (Level 2) and $5.9 billion (Level 2), respectively, at December 31, 2013. The fair

34

values of the Company’s financial instruments (other than mortgage notes payable, unsecured notes, lines of credit and derivative instruments), including cash and cash equivalents and other financial instruments, approximate their carrying or contract values.

In the normal course of business, the Company is exposed to the effect of interest rate changes. The Company seeks to manage these risks by following established risk management policies and procedures including the use of derivatives to hedge interest rate risk on debt instruments. The Company may also use derivatives to manage its exposure to foreign exchange rates or manage commodity prices in the daily operations of the business.

The following table summarizes the Company’s consolidated derivative instruments at June 30, 2014 (dollar amounts are in thousands):

	Fair Value Hedges (1)			Forward Starting Swaps (2)
Current Notional Balance	$	450,000		$	100,000
Lowest Possible Notional	$	450,000		$	100,000
Highest Possible Notional	$	450,000		$	100,000
Lowest Interest Rate	2.375		%	3.140		%
Highest Interest Rate	2.375		%	3.191		%
Earliest Maturity Date	2019			2025
Latest Maturity Date	2019			2025

(1) Fair Value Hedges – Converts outstanding fixed rate unsecured notes ($450.0 million2.375%notes due July 1, 2019) to a floating interest rate of 90-Day LIBOR plus 0.61%.

(2) Forward Starting Swaps – Designed to partially fix interest rates in advance of a planned future debt issuance. These swaps have mandatory counterparty terminations in 2016, and are targeted to 2015 issuances.

A three-level valuation hierarchy exists for disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The three levels are defined as follows:

• Level 1 – Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.

• Level 2 – Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

• Level 3 – Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

The Company’s derivative positions are valued using models developed by the respective counterparty as well as models developed internally by the Company that use as their basis readily observable market parameters (such as forward yield curves and credit default swap data). Employee holdings other than Common Shares within the supplemental executive retirement plan (the “SERP”) are valued using quoted market prices for identical assets and are included in other assets and other liabilities on the consolidated balance sheets. Redeemable Noncontrolling Interests – Operating Partnership/Redeemable Limited Partners are valued using the quoted market price of Common Shares. The fair values disclosed for mortgage notes payable and unsecured debt (including its line of credit) were calculated using indicative rates provided by lenders of similar loans in the case of mortgage notes payable and the private unsecured debt (including its line of credit) and quoted market prices for each underlying issuance in the case of the public unsecured notes.

The following tables provide a summary of the fair value measurements for each major category of assets and liabilities measured at fair value on a recurring basis and the location within the accompanying consolidated balance sheets at June 30, 2014 and December 31, 2013, respectively (amounts in thousands):

35

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	6/30/2014		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant  Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level  3)
Assets
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Assets	$	1,452	$	—	$	1,452	$	—
Supplemental Executive Retirement Plan	Other Assets	97,543		97,543		—		—
Total		$	98,995	$	97,543	$	1,452	$	—
Liabilities
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	Other Liabilities	$	2,346	$	—	$	2,346	$	—
Supplemental Executive Retirement Plan	Other Liabilities	97,543		97,543		—		—
Total		$	99,889	$	97,543	$	2,346	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	440,050	$	—	$	440,050	$	—

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	12/31/2013		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant  Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level  3)
Assets
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	Other Assets	$	18,710	$	—	$	18,710	$	—
Supplemental Executive Retirement Plan	Other Assets	83,845		83,845		—		—
Total		$	102,555	$	83,845	$	18,710	$	—
Liabilities
Supplemental Executive Retirement Plan	Other Liabilities	$	83,845	$	83,845	$	—	$	—
Total		$	83,845	$	83,845	$	—	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	363,144	$	—	$	363,144	$	—

The following tables provide a summary of the effect of fair value hedges on the Company’s accompanying consolidated statements of operations and comprehensive income for the six months ended June 30, 2014 and 2013, respectively (amounts in thousands):

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June 30, 2014 Type of Fair Value Hedge	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative		Hedged Item	Income Statement Location of Hedged Item Gain/(Loss)	Amount of Gain/(Loss) Recognized in Income on Hedged Item
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Interest Rate Swaps	Interest expense	$	1,452	Fixed rate debt	Interest expense	$	(1,452	)
Total		$	1,452			$	(1,452	)

June 30, 2013 Type of Fair Value Hedge	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative			Hedged Item	Income Statement Location of Hedged Item Gain/(Loss)	Amount of Gain/(Loss) Recognized in Income on Hedged Item
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Interest Rate Swaps	Interest expense	$	(1,524	)	Fixed rate debt	Interest expense	$	1,524
Total		$	(1,524	)			$	1,524

The following tables provide a summary of the effect of cash flow hedges on the Company’s accompanying consolidated statements of operations and comprehensive income for the six months ended June 30, 2014 and 2013, respectively (amounts in thousands):

	Effective Portion							Ineffective Portion
June 30, 2014 Type of Cash Flow Hedge	Amount of Gain/(Loss) Recognized in OCI on Derivative			Location of Gain/ (Loss) Reclassified from Accumulated OCI into Income	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income			Location of Gain/(Loss) Recognized in Income  on Derivative	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps/Treasury Locks	$	(21,790	)	Interest expense	$	(8,335	)	Interest expense	$	91
Total	$	(21,790	)		$	(8,335	)		$	91

	Effective Portion						Ineffective Portion
June 30, 2013 Type of Cash Flow Hedge	Amount of Gain/(Loss) Recognized in OCI on Derivative		Location of Gain/ (Loss) Reclassified from Accumulated OCI into Income	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income			Location of Gain/(Loss) Recognized in Income  on Derivative	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps/Treasury Locks	$	12,337	Interest expense	$	(12,098	)	N/A	$	—
Total	$	12,337		$	(12,098	)		$	—

As of June 30, 2014 and December 31, 2013, there were approximately $169.3 million and $155.8 million in deferred losses, net, included in accumulated other comprehensive (loss), respectively, related to derivative instruments. Based on the estimated fair values of the net derivative instruments at June 30, 2014, the Company may recognize an estimated $22.0 million of accumulated other comprehensive (loss) as additional interest expense during the twelve months ending June 30, 2015.

In June 2014, the Company paid a net $2.0 million to settle seven forward starting ten-year swaps in conjunction with the issuance of $750.0 million of thirty-year fixed rate public notes. The ineffective portion of approximately $0.1 million was recorded as a decrease to interest expense and accrued interest of approximately $1.3 million was recorded as an increase to interest expense. The remaining amount of approximately $0.8 million will be deferred as a component of accumulated other comprehensive (loss) and recognized as an increase to interest expense over the first nine years and ten months of the notes.

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10.    Earning Per Share and Earnings Per Unit

Equity Residential

The following tables set forth the computation of net income per share – basic and net income per share – diluted for the Company (amounts in thousands except per share amounts):

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Numerator for net income per share – basic:
Income (loss) from continuing operations	$	183,987		$	(223,850	)	$	102,307		$	(58,511	)
Allocation to Noncontrolling Interests – Operating Partnership, net	(7,475		)	9,078			(4,422		)	2,231
Net gain on sales of real estate properties	14,903			—			14,903			—
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)	790			(588		)	815
Preferred distributions	(2,072		)	(2,072		)	(1,036		)	(1,036		)
Income (loss) from continuing operations available to Common Shares, net of Noncontrolling Interests	188,251			(216,054		)	111,164			(56,501		)
Discontinued operations, net of Noncontrolling Interests	1,502			1,556,427			490			380,224
Numerator for net income per share – basic	$	189,753		$	1,340,373		$	111,654		$	323,723
Numerator for net income per share – diluted (1):
Income from continuing operations	$	183,987					$	102,307
Net gain on sales of real estate properties	14,903						14,903
Net (income) attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)				(588		)
Preferred distributions	(2,072		)				(1,036		)
Income from continuing operations available to Common Shares	195,726						115,586
Discontinued operations, net	1,562						510
Numerator for net income per share – diluted (1)	$	197,288		$	1,340,373		$	116,096		$	323,723
Denominator for net income per share – basic and diluted (1):
Denominator for net income per share – basic	360,641			348,654			360,809			359,653
Effect of dilutive securities:
OP Units	13,736						13,742
Long-term compensation shares/units	2,403						2,567
Denominator for net income per share – diluted (1)	376,780			348,654			377,118			359,653
Net income per share – basic	$	0.53		$	3.84		$	0.31		$	0.90
Net income per share – diluted	$	0.52		$	3.84		$	0.31		$	0.90
Net income per share – basic:
Income (loss) from continuing operations available to Common Shares, net of Noncontrolling Interests	$	0.522		$	(0.620	)	$	0.308		$	(0.157	)
Discontinued operations, net of Noncontrolling Interests	0.004			4.464			0.001			1.057
Net income per share – basic	$	0.526		$	3.844		$	0.309		$	0.900
Net income per share – diluted (1):
Income (loss) from continuing operations available to Common Shares	$	0.520		$	(0.620	)	$	0.307		$	(0.157	)
Discontinued operations, net	0.004			4.464			0.001			1.057
Net income per share – diluted	$	0.524		$	3.844		$	0.308		$	0.900

(1) Potential common shares issuable from the assumed conversion of OP Units and the exercise/vesting of long-term compensation shares/units are automatically anti-dilutive and therefore excluded from the diluted earnings per share calculation as the Company had a loss from continuing operations for the six months and quarter ended June 30, 2013.

ERP Operating Limited Partnership

The following tables set forth the computation of net income per Unit – basic and net income per Unit – diluted for the Operating Partnership (amounts in thousands except per Unit amounts):

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	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Numerator for net income per Unit – basic and diluted (1):
Income (loss) from continuing operations	$	183,987		$	(223,850	)	$	102,307		$	(58,511	)
Net gain on sales of real estate properties	14,903			—			14,903			—
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)	790			(588		)	815
Allocation to Preference Units	(2,072		)	(2,072		)	(1,036		)	(1,036		)
Income (loss) from continuing operations available to Units	195,726			(225,132		)	115,586			(58,732		)
Discontinued operations, net	1,562			1,621,616			510			395,243
Numerator for net income per Unit – basic and diluted (1)	$	197,288		$	1,396,484		$	116,096		$	336,511
Denominator for net income per Unit – basic and diluted (1):
Denominator for net income per Unit - basic	374,377			362,390			374,551			373,403
Effect of dilutive securities:
Dilution for Units issuable upon assumed exercise/vesting of the    Company’s long-term compensation shares/units	2,403						2,567
Denominator for net income per Unit – diluted (1)	376,780			362,390			377,118			373,403
Net income per Unit – basic	$	0.53		$	3.84		$	0.31		$	0.90
Net income per Unit – diluted	$	0.52		$	3.84		$	0.31		$	0.90
Net income per Unit – basic:
Income (loss) from continuing operations available to Units	$	0.522		$	(0.620	)	$	0.308		$	(0.157	)
Discontinued operations, net	0.004			4.464			0.001			1.057
Net income per Unit – basic	$	0.526		$	3.844		$	0.309		$	0.900
Net income per Unit – diluted (1):
Income (loss) from continuing operations available to Units	$	0.520		$	(0.620	)	$	0.307		$	(0.157	)
Discontinued operations, net	0.004			4.464			0.001			1.057
Net income per Unit – diluted	$	0.524		$	3.844		$	0.308		$	0.900

(1) Potential Units issuable from the assumed exercise/vesting of the Company's long-term compensation shares/units are automatically anti-dilutive and therefore excluded from the diluted earnings per Unit calculation as the Operating Partnership had a loss from continuing operations for the six months and quarter ended June 30, 2013.

11. Discontinued Operations

The Company has presented separately as discontinued operations in all periods the results of operations for all consolidated assets disposed of and all properties held for sale, if any, for properties sold in 2013 and prior years. The amounts included in discontinued operations for the six months and quarter ended June 30, 2014 represent trailing activity for properties sold in 2013 and prior years. None of the properties sold during the six months and quarter ended June 30, 2014 met the new criteria for reporting discontinued operations. See Note 2 for further discussion.

The components of discontinued operations are outlined below and include the results of operations for the respective periods that the Company owned such assets for properties sold in 2013 and prior years during the six months and quarters ended June 30, 2014 and 2013 (amounts in thousands).

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	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
REVENUES
Rental income	$	1,275		$	107,956		$	252		$	26,174
Total revenues	1,275			107,956			252			26,174
EXPENSES (1)
Property and maintenance	(41		)	31,449			(89		)	11,025
Real estate taxes and insurance	(6		)	10,867			(19		)	2,273
Property management	—			1			—			—
Depreciation	—			30,962			—			7,146
General and administrative	51			73			46			65
Total expenses	4			73,352			(62		)	20,509
Discontinued operating income	1,271			34,604			314			5,665
Interest and other income	80			90			45			38
Other expenses	—			(3		)	—			(1		)
Interest (2):
Expense incurred, net	—			(1,258		)	—			(6		)
Amortization of deferred financing costs	—			(228		)	—			—
Income and other tax (expense) benefit	(13		)	(463		)	(2		)	(405		)
Discontinued operations	1,338			32,742			357			5,291
Net gain on sales of discontinued operations	224			1,588,874			153			389,952
Discontinued operations, net	$	1,562		$	1,621,616		$	510		$	395,243

(1) Includes expenses paid in the current period for properties sold in prior periods related to the Company’s period of ownership.

(2) Includes only interest expense specific to secured mortgage notes payable for properties sold.

12. Commitments and Contingencies

The Company, as an owner of real estate, is subject to various Federal, state and local environmental laws. Compliance by the Company with existing laws has not had a material adverse effect on the Company. However, the Company cannot predict the impact of new or changed laws or regulations on its current properties or on properties that it may acquire in the future.

The Company is party to a housing discrimination lawsuit brought by a non-profit civil rights organization in April 2006 in the U.S. District Court for the District of Maryland. The suit alleges that the Company designed and built approximately 300 of its properties in violation of the accessibility requirements of the Fair Housing Act and Americans With Disabilities Act. The suit seeks actual and punitive damages, injunctive relief (including modification of non-compliant properties), costs and attorneys' fees. The Company believes it has a number of viable defenses, including that a majority of the named properties were completed before the operative dates of the statutes in question and/or were not designed or built by the Company. Accordingly, the Company is defending the suit vigorously. Due to the pendency of the Company’s defenses and the uncertainty of many other critical factual and legal issues, it is not possible to determine or predict the outcome of the suit or a possible loss or a range of loss, and no amounts have been accrued at June 30, 2014. While no assurances can be given, the Company does not believe that the suit, if adversely determined, would have a material adverse effect on the Company.

The Company does not believe there is any other litigation pending or threatened against it that, individually or in the aggregate, may reasonably be expected to have a material adverse effect on the Company.

As of June 30, 2014, the Company has 12 consolidated projects (including Prism at Park Avenue South in New York City which the Company is jointly developing with Toll Brothers that is discussed below) totaling 3,871 apartment units in various stages of development with commitments to fund of approximately $1.0 billion and estimated completion dates ranging through September 30, 2016, as well as other completed development projects that are in various stages of lease up or are stabilized. Some of the projects are being developed solely by the Company, while others are being co-developed with various third party development partners. The development venture agreements with these partners are primarily deal-specific, with differing terms regarding

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profit-sharing, equity contributions, returns on investment, buy-sell agreements and other customary provisions. The Company is the "general" or "managing" partner of the development ventures.

As of June 30, 2014, the Company has one unconsolidated project totaling 176 apartment units under development with an estimated completion date of December 31, 2014, as well as other completed development projects that are in various stages of lease up or are stabilized. These projects are all being co-developed with various third party development partners. The development venture agreements with these partners are primarily deal-specific, with differing terms regarding profit-sharing, equity contributions, returns on investment, buy-sell agreements and other customary provisions. The Company currently has no further funding obligations for Domain, Nexus Sawgrass and San Norterra. While the Company is the managing member of the Domain and Nexus Sawgrass joint ventures, was responsible for constructing both projects and has given certain construction cost overrun guarantees, the joint venture partner has significant participating rights and has active involvement in and oversight of the ongoing projects. The Domain and Nexus Sawgrass buy-sell arrangements contain provisions that provide the right, but not the obligation, for the Company to acquire the partner’s interests or sell its interests at any time following the occurrence of certain pre-defined events (including at stabilization) described in the development venture agreements. The respective partner for San Norterra and Parc on Powell (formerly known as 1333 Powell) is the “general” or “managing” partner of the development venture and the Company does not have substantive kick-out or participating rights. The Company has given a repayment guaranty on the construction loan for Parc on Powell of 50% of the outstanding balance, up to a maximum of $19.7 million, and has given certain construction cost overrun guarantees.

In December 2011, the Company and Toll Brothers (NYSE: TOL) jointly acquired a vacant land parcel at 400 Park Avenue South in New York City. The Company's and Toll Brothers' allocated portions of the purchase price were approximately $76.1 million and $57.9 million, respectively. The Company is the managing member and Toll Brothers does not have substantive kick-out or participating rights. Until the core and shell of the building is complete, the building and land will be owned jointly and are required to be consolidated on the Company's balance sheet. Thereafter, the Company will solely own and control the rental portion of the building (floors 2-22) and Toll Brothers will solely own and control the for sale portion of the building (floors 23-40). Once the core and shell are complete, the Toll Brothers' portion of the property will be deconsolidated from the Company's balance sheet. The acquisition was financed through contributions by the Company and Toll Brothers of approximately $102.5 million and $75.7 million, respectively, which included the land purchase noted above, restricted deposits and taxes and fees. As of June 30, 2014, the Company's and Toll Brothers' consolidated contributions to the joint venture were approximately $327.9 million, of which Toll Brothers' noncontrolling interest balance totaled $117.4 million.

13. Reportable Segments

Operating segments are defined as components of an enterprise that engage in business activities from which they may earn revenues and incur expenses and about which discrete financial information is available that is evaluated regularly by the chief operating decision maker. The chief operating decision maker decides how resources are allocated and assesses performance on a recurring basis at least quarterly.

The Company’s primary business is the acquisition, development and management of multifamily residential properties, which includes the generation of rental and other related income through the leasing of apartment units to residents. The chief operating decision maker evaluates the Company's operating performance geographically by market and both on a same store and non-same store basis. The Company’s operating segments located in its core markets represent its reportable segments (with the aggregation of Los Angeles, Orange County and San Diego into the Southern California reportable segment). The Company's operating segments located in its non-core markets that are not material have also been aggregated in the tables presented below.

The Company’s fee and asset management and development (including its partially owned properties) activities are other business activities that do not constitute an operating segment and as such, have been aggregated in the "Other" category in the tables presented below.

All revenues are from external customers and there is no customer who contributed 10% or more of the Company’s total revenues during the six months and quarters ended June 30, 2014 and 2013, respectively.

The primary financial measure for the Company’s rental real estate segment is net operating income (“NOI”), which represents rental income less: 1) property and maintenance expense; 2) real estate taxes and insurance expense; and 3) property management expense (all as reflected in the accompanying consolidated statements of operations and comprehensive income). The Company believes that NOI is helpful to investors as a supplemental measure of its operating performance because it is a direct measure of the actual operating results of the Company’s apartment communities. Current year NOI is compared to prior year NOI and current year budgeted NOI as a measure of financial performance. The following tables present NOI for each

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segment from our rental real estate specific to continuing operations for the six months and quarters ended June 30, 2014 and 2013, respectively, as well as total assets and capital expenditures at June 30, 2014 (amounts in thousands):

	Six Months Ended June 30, 2014							Six Months Ended June 30, 2013
	Rental Income		Operating Expenses		NOI			Rental Income			Operating Expenses			NOI
Same store (1)
Boston	$	125,024	$	41,414	$	83,610		$	120,455		$	39,651		$	80,804
Denver	54,123		15,098		39,025			50,494			14,987			35,507
New York	225,407		88,102		137,305			217,297			83,745			133,552
San Francisco	165,343		52,960		112,383			152,459			54,109			98,350
Seattle	76,702		25,805		50,897			71,548			24,553			46,995
South Florida	97,893		36,404		61,489			93,289			35,417			57,872
Southern California	207,272		69,450		137,822			198,366			69,149			129,217
Washington DC	222,135		72,499		149,636			223,807			71,049			152,758
Non-core	65,607		24,495		41,112			63,715			23,931			39,784
Total same store	1,239,506		426,227		813,279			1,191,430			416,591			774,839
Non-same store/other (2) (3)
Boston	1,817		413		1,404			1,154			255			899
Seattle	4,444		1,779		2,665			1,303			374			929
South Florida	2,041		1,301		740			24			146			(122		)
Southern California	15,623		7,452		8,171			5,397			2,593			2,804
Washington DC	10,840		3,857		6,983			5,320			1,862			3,458
Other (3)	6,220		7,754		(1,534		)	4,901			13,295			(8,394		)
Total non-same store/other	40,985		22,556		18,429			18,099			18,525			(426		)
Archstone pre-ownership (4)	—		—		—			(92,423		)	(36,729		)	(55,694		)
Total	$	1,280,491	$	448,783	$	831,708		$	1,117,106		$	398,387		$	718,719

(1) Same store primarily includes all properties acquired or completed and stabilized prior to January 1, 2013, less properties subsequently sold, which represented 100,648 apartment units. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(2) Non-same store primarily includes properties acquired after January 1, 2013, plus any properties in lease-up and not stabilized as of January 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(3) Other includes development, other corporate operations and operations prior to sale for properties sold in 2014 that do not meet the new discontinued operations criteria.

(4) Represents pro forma Archstone pre-ownership results for the period January 1, 2013 to February 27, 2013 that is included in 2013 same store results.

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	Quarter Ended June 30, 2014						Quarter Ended June 30, 2013
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Boston	$	63,117	$	19,259	$	43,858	$	61,401	$	19,444	$	41,957
Denver	27,511		7,648		19,863		25,524		7,770		17,754
New York	114,221		41,898		72,323		109,299		40,634		68,665
San Francisco	84,082		26,305		57,777		77,514		25,955		51,559
Seattle	38,977		13,037		25,940		36,176		12,316		23,860
South Florida	49,456		18,220		31,236		47,051		17,774		29,277
Southern California	104,608		34,811		69,797		100,156		34,275		65,881
Washington DC	111,739		35,102		76,637		112,815		35,165		77,650
Non-core	33,035		11,806		21,229		32,110		11,880		20,230
Total same store	626,746		208,086		418,660		602,046		205,213		396,833
Non-same store/other (2) (3)
Boston	790		202		588		898		201		697
Seattle	2,756		1,042		1,714		1,271		373		898
South Florida	1,241		760		481		14		68		(54		)
Southern California	8,446		4,261		4,185		4,106		1,976		2,130
Washington DC	5,906		1,954		3,952		3,512		1,209		2,303
Other (3)	3,881		2,693		1,188		2,697		3,234		(537		)
Total non-same store/other	23,020		10,912		12,108		12,498		7,061		5,437
Total	$	649,766	$	218,998	$	430,768	$	614,544	$	212,274	$	402,270

(1) Same store primarily includes all properties acquired or completed and stabilized prior to April 1, 2013, less properties subsequently sold, which represented 100,648 apartment units. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(2) Non-same store primarily includes properties acquired after April 1, 2013, plus any properties in lease-up and not stabilized as of April 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(3) Other includes development, other corporate operations and operations prior to sale for properties sold in 2014 that do not meet the new discontinued operations criteria.

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	Six Months Ended June 30, 2014
	Total Assets		Capital Expenditures
Same store (1)
Boston	$	1,953,627	$	8,814
Denver	530,832		1,904
New York	4,720,592		8,202
San Francisco	2,753,902		12,704
Seattle	1,046,051		5,264
South Florida	1,170,295		7,600
Southern California	2,978,750		11,953
Washington DC	4,270,418		14,834
Non-core	605,225		3,123
Total same store	20,029,692		74,398
Non-same store/other (2) (3)
Boston	48,830		630
Seattle	226,604		281
South Florida	70,896		16
Southern California	511,343		645
Washington DC	306,594		852
Other (3)	1,797,443		90
Total non-same store/other	2,961,710		2,514
Total	$	22,991,402	$	76,912

(1) Same store primarily includes all properties acquired or completed and stabilized prior to January 1, 2013, less properties subsequently sold, which represented 100,648 apartment units. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(2) Non-same store primarily includes properties acquired after January 1, 2013, plus any properties in lease-up and not stabilized as of January 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(3) Other includes development, other corporate operations and capital expenditures for properties sold.

Note: Markets/Metro Areas aggregated in the above Southern California and Non-core segments are as follows:

(a) Southern California – Los Angeles, Orange County and San Diego.

(b) Non-core – Inland Empire, CA, New England (excluding Boston), Orlando and Phoenix.

The following table presents a reconciliation of NOI from our rental real estate specific to continuing operations for the six months and quarters ended June 30, 2014 and 2013, respectively (amounts in thousands):

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Rental income	$	1,280,491		$	1,117,106		$	649,766		$	614,544
Property and maintenance expense	(240,961		)	(212,030		)	(115,388		)	(113,501		)
Real estate taxes and insurance expense	(165,149		)	(141,837		)	(83,055		)	(76,742		)
Property management expense	(42,673		)	(44,520		)	(20,555		)	(22,031		)
Total operating expenses	(448,783		)	(398,387		)	(218,998		)	(212,274		)
Net operating income	$	831,708		$	718,719		$	430,768		$	402,270

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14. Subsequent Events/Other

Subsequent Events

Subsequent to June 30, 2014, the Company:

• Acquired one land parcel for $13.0 million;

• Repaid $60.7 million in mortgage loans; and

• Closed on the sale of its unconsolidated interest in the remaining Residual JV wholly-owned German real estate assets that were acquired as part of the Archstone Acquisition. With this sale, all German real estate assets have now been sold.

Other

During the six months ended June 30, 2014 and 2013, the Company incurred charges of $0.1 million and $0.1 million, respectively, related to property acquisition costs, such as survey, title and legal fees, on the acquisition of operating properties (excluding the Archstone Transaction) and $1.5 million and $3.4 million, respectively, related to the write-off of various pursuit and out-of-pocket costs for terminated acquisition, disposition and development transactions. These costs, totaling $1.6 million and $3.5 million, respectively, are included in other expenses in the accompanying consolidated statements of operations and comprehensive income. See Note 4 for details on the property acquisition costs related to the Archstone Transaction.

During the six months ended June 30, 2014, the Company received $2.3 million for the settlement of various litigation/insurance claims, which are included in interest and other income in the accompanying consolidated statements of operations and comprehensive income.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

For further information including definitions for capitalized terms not defined herein, refer to the consolidated financial statements and footnotes thereto included in the Company’s and the Operating Partnership's Annual Report on Form 10-K for the year ended December 31, 2013.

Forward-Looking Statements

Forward-looking statements in this report are intended to be made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These statements are based on current expectations, estimates, projections and assumptions made by management. While the Company’s management believes the assumptions underlying its forward-looking statements are reasonable, such information is inherently subject to uncertainties and may involve certain risks, which could cause actual results, performance or achievements of the Company to differ materially from anticipated future results, performance or achievements expressed or implied by such forward-looking statements. Many of these uncertainties and risks are difficult to predict and beyond management’s control. Forward-looking statements are not guarantees of future performance, results or events. The forward-looking statements contained herein are made as of the date hereof and the Company undertakes no obligation to update or supplement these forward-looking statements. Factors that might cause such differences include, but are not limited to the following:

▪ We intend to actively acquire, develop and rehab multifamily properties for rental operations as market conditions dictate. We may also acquire multifamily properties that are unoccupied or in the early stages of lease up. We may be unable to lease up these apartment properties on schedule, resulting in decreases in expected rental revenues and/or lower yields due to lower occupancy and rates as well as higher than expected concessions. We may not be able to achieve rents that are consistent with expectations for acquired, developed or rehabbed properties. We may underestimate the costs necessary to bring an acquired property up to standards established for its intended market position, to complete a development property or to complete a rehab. Additionally, we expect that other real estate investors with capital will compete with us for attractive investment opportunities or may also develop properties in markets where we focus our development and acquisition efforts. This competition (or lack thereof) may increase (or depress) prices for multifamily properties. We may not be in a position or have the opportunity in the future to make suitable property acquisitions on favorable terms. We have acquired in the past and intend to continue to pursue the acquisition of properties and portfolios of properties, including large portfolios, that could increase our size and result in alterations to our capital structure. The total number of apartment units under development, costs of development and estimated completion dates are subject to uncertainties arising from changing economic conditions (such as the cost of labor and construction materials), competition and local government regulation;

▪ Debt financing and other capital required by the Company may not be available or may only be available on adverse terms;

▪ Labor and materials required for maintenance, repair, capital expenditure or development may be more expensive than anticipated;

▪ Occupancy levels and market rents may be adversely affected by national and local economic and market conditions including, without limitation, new construction and excess inventory of multifamily and single family housing, increasing portions of single family housing stock being converted to rental use, rental housing subsidized by the government, other government programs that favor single family rental housing or owner occupied housing over multifamily rental housing, governmental regulations, slow or negative employment growth and household formation, the availability of low-interest mortgages or the availability of mortgages requiring little or no down payment for single family home buyers, changes in social preferences and the potential for geopolitical instability, all of which are beyond the Company's control; and

▪ Additional factors as discussed in Part I of the Company’s and the Operating Partnership's Annual Report on Form 10-K, particularly those under “Item 1A. Risk Factors”.

Forward-looking statements and related uncertainties are also included in the Notes to Consolidated Financial Statements in this report.

Overview

Equity Residential (“EQR”), a Maryland real estate investment trust (“REIT”) formed in March 1993, is an S&P 500 company focused on the acquisition, development and management of high quality apartment properties in top United States growth markets. ERP Operating Limited Partnership (“ERPOP”), an Illinois limited partnership, was formed in May 1993 to conduct the multifamily residential property business of Equity Residential. EQR has elected to be taxed as a REIT. References to the “Company,” “we,” “us” or “our” mean collectively EQR, ERPOP and those entities/subsidiaries owned or controlled by

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EQR and/or ERPOP. References to the “Operating Partnership” mean collectively ERPOP and those entities/subsidiaries owned or controlled by ERPOP.

EQR is the general partner of, and as of June 30, 2014 owned an approximate 96.2% ownership interest in, ERPOP. All of the Company’s property ownership, development and related business operations are conducted through the Operating Partnership and EQR has no material assets or liabilities other than its investment in ERPOP. EQR issues equity from time to time but does not have any indebtedness as all debt is incurred by the Operating Partnership. The Operating Partnership holds substantially all of the assets of the Company, including the Company’s ownership interests in its joint ventures. The Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity.

The Company’s corporate headquarters are located in Chicago, Illinois and the Company also operates property management offices in each of its core markets. As of June 30, 2014, the Company had approximately 3,600 employees who provided real estate operations, leasing, legal, financial, accounting, acquisition, disposition, development and other support functions.

Available Information

You may access our Annual Report on Form 10-K, our Quarterly Reports on Form 10-Q, our Current Reports on Form 8-K and any amendments to any of those reports we file with the SEC free of charge at our website, www.equityresidential.com. These reports are made available at our website as soon as reasonably practicable after we file them with the SEC. The information contained on our website, including any information referred to in this report as being available on our website, is not a part of or incorporated into this report.

Business Objectives and Operating and Investing Strategies

The Company invests in high quality apartment communities located in strategically targeted markets with the goal of maximizing our risk adjusted total return (operating income plus capital appreciation) on invested capital.

We seek to maximize the income and capital appreciation of our properties by investing in markets that are characterized by conditions favorable to multifamily property appreciation. We are focused primarily on the six core coastal, high barrier to entry markets of Boston, New York, Washington DC, Southern California (including Los Angeles, Orange County and San Diego), San Francisco and Seattle. These markets generally feature one or more of the following characteristics that allow us to increase rents:

▪ High barriers to entry where, because of land scarcity or government regulation, it is difficult or costly to build new apartment properties, creating limits on new supply;

▪ High home ownership costs;

▪ Strong economic growth leading to job growth and household formation, which in turn leads to high demand for our apartments;

▪ Urban core locations with an attractive quality of life and higher wage job categories leading to high resident demand and retention; and

▪ Favorable demographics contributing to a larger pool of target residents with a high propensity to rent apartments.

Our operating focus is on balancing occupancy and rental rates to maximize our revenue while exercising tight cost control to generate the highest possible return to our shareholders. Revenue is maximized by attracting qualified prospects to our properties, cost-effectively converting these prospects into new residents and keeping our residents satisfied so they will renew their leases upon expiration. While we believe that it is our high-quality, well-located assets that bring our customers to us, it is the customer service and superior value provided by our on-site personnel that keeps them renting with us and recommending us to their friends.

We use technology to engage our customers in the way that they want to be engaged. Many of our residents utilize our web-based resident portal which allows them to sign and renew their leases, review their accounts and make payments, provide feedback and make service requests on-line.

Acquisitions and developments may be financed from various sources of capital, which may include retained cash flow, issuance of additional equity and debt, sales of properties and joint venture agreements. In addition, the Company may acquire properties in transactions that include the issuance of limited partnership interests in the Operating Partnership (“OP Units”) as consideration for the acquired properties. Such transactions may, in certain circumstances, enable the sellers to defer, in whole or

47

in part, the recognition of taxable income or gain that might otherwise result from the sales. The Company may acquire land parcels to hold and/or sell based on market opportunities as well as options to buy more land in the future. The Company may also seek to acquire properties by purchasing defaulted or distressed debt that encumbers desirable properties in the hope of obtaining title to property through foreclosure or deed-in-lieu of foreclosure proceedings. The Company has also, in the past, converted some of its properties and sold them as condominiums but is not currently active in this line of business.

Over the past several years, the Company has done an extensive repositioning of its portfolio from low barrier to entry/non-core markets to high barrier to entry/core markets. Since 2005, the Company has sold over 162,000 apartment units primarily in its non-core markets for an aggregate sales price of approximately $15.6 billion, acquired over 67,000 apartment units primarily in its core markets for approximately $19.2 billion and began approximately $4.7 billion of development projects primarily in its core markets. We are currently seeking to acquire and develop assets primarily in the following six core coastal metropolitan areas: Boston, New York, Washington DC, Southern California, San Francisco and Seattle. We also have investments (in the aggregate about 11.9% of our NOI at June 30, 2014) in the two core markets of South Florida and Denver but do not currently intend to acquire or develop new assets in these markets. Further, we are in the process of exiting Phoenix and Orlando and will use sales proceeds from these markets to acquire and/or develop new assets and for other corporate purposes.

As part of its strategy, the Company purchases completed and fully occupied apartment properties, partially completed or partially occupied properties and takes options on land or acquires land on which apartment properties can be constructed. We intend to hold a diversified portfolio of assets across our target markets. As of June 30, 2014, no single market/metropolitan area accounted for more than 18.6% of our NOI, though no guarantee can be made that NOI concentration may not increase in the future.

We endeavor to attract and retain the best employees by providing them with the education, resources and opportunities to succeed. We provide many classroom and on-line training courses to assist our employees in interacting with prospects and residents as well as extensively train our customer service specialists in maintaining our properties and improvements, equipment and appliances. We actively promote from within and many senior corporate and property leaders have risen from entry level or junior positions. We monitor our employees' engagement by surveying them annually and have consistently received high engagement scores.

We have a commitment to sustainability and consider the environmental impacts of our business activities. Sustainability and social responsibility are key drivers of our focus on creating the best apartment communities for residents to live, work and play. We have a dedicated in-house team that initiates and applies sustainable practices in all aspects of our business, including investment activities, development, property operations and property management activities. With its high density, multifamily housing is, by its nature, an environmentally friendly property type. Our recent acquisition and development activities have been primarily concentrated in pedestrian-friendly urban locations near public transportation. When developing and renovating our properties, we strive to reduce energy and water usage by investing in energy saving technology while positively impacting the experience of our residents and the value of our assets. We continue to implement a combination of irrigation, lighting, HVAC and renewable energy improvements at our properties that will reduce energy and water consumption. For additional information regarding our sustainability efforts, see our December 2013 Corporate Social Responsibility and Sustainability Report at our website, www.equityresidential.com.

Current Environment

During the six months ended June 30, 2014, the Company acquired three consolidated rental properties consisting of 772 apartment units for $249.6 million and one land parcel and development rights at one of its existing land sites for $15.8 million. We believe our access to capital, our ability to execute large, complex transactions and our ability to efficiently stabilize large scale lease up properties provide us with a competitive advantage, which was demonstrated in the Archstone Transaction that closed in 2013. The Company currently budgets consolidated rental acquisitions of approximately $500.0 million during the year ending December 31, 2014 to be funded with proceeds from rental dispositions (see discussion below).

The Company started construction on three projects representing 1,145 apartment units totaling approximately $614.3 million of development costs during the six months ended June 30, 2014. The Company expects to increase its development activity as compared to the past few years and has budgeted up to $1.6 billion combined of new apartment construction starts on land currently owned during the years ending December 31, 2014 and 2015, with up to $1.0 billion occurring in 2014 and the balance occurring in 2015. We currently budget spending approximately $500.0 million on development costs during the year ending December 31, 2014. This capital will be primarily sourced with excess operating cash flow and borrowings on our revolving credit facility.

The Company expects to continue to sell non-core assets and reduce its exposure to non-core markets as we believe these assets will have lower long-term returns and we can sell them for prices that we believe are favorable. The Archstone Transaction

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that closed in 2013 provided an opportunity to accelerate this strategy and do so efficiently through the use of Section 1031 tax deferred exchanges. Over the past several years, dispositions combined with reinvestment of the cash proceeds in assets with lower cap rates (see definition below) were dilutive to our earnings per share. The Company defines dilution from transactions as the lost NOI from sales proceeds that were not reinvested in other apartment properties or were reinvested in properties with a lower cap rate. Beginning in 2014 and going forward, the Company expects a decrease in dilution due to our reduced disposition expectations and the locations of our planned dispositions. The Company sold one consolidated rental property consisting of 336 apartment units for $40.9 million and a land parcel for $8.2 million during the six months ended June 30, 2014. The Company currently budgets consolidated rental dispositions of approximately $500.0 million during the year ending December 31, 2014.

We currently have access to multiple sources of capital including the equity markets as well as both the secured and unsecured debt markets. In June 2014, the Company completed a $450.0 million unsecured five year note offering with a coupon of 2.375% and an all-in effective interest rate of approximately 2.52% as well as a $750.0 million unsecured thirty year note offering with a coupon of 4.5% and an all-in effective interest rate of approximately 4.57%. The Company used the proceeds from these offerings to repay its $750.0 million unsecured term loan facility that was scheduled to mature on January 11, 2015 and to repay the outstanding balance on its revolving credit facility. In October 2013, the Company used cash on hand from dispositions to repay $963.5 million outstanding of 5.883% mortgage debt assumed as part of the Archstone Transaction prior to the November 1, 2014 maturity date. Also in October 2013, the Company closed a new $800.0 million mortgage loan from a large insurance company which matures on November 10, 2023, is interest only and carries a fixed interest rate of 4.21%. The Company used the loan proceeds from this new loan to simultaneously repay $825.0 million of a $1.27 billion mortgage loan assumed as part of the Archstone Transaction. The approximately $440.0 million balance will remain outstanding, continue to mature in November 2017 and continue to carry a fixed interest rate of 6.256%. The Company believes it has obtained favorable interest terms on all of this long term debt and has substantially extended the duration of its debt maturities as well as reduced its 2014, 2015 and 2017 maturities as a percentage of outstanding debt.

We believe that cash and cash equivalents, securities readily convertible to cash, current availability on our revolving credit facility and disposition proceeds for 2014 will provide sufficient liquidity to meet our funding obligations relating to asset acquisitions, debt maturities and existing development projects through 2014. We expect that our remaining longer-term funding requirements will be met through some combination of new borrowings, equity issuances, property dispositions, joint ventures and cash generated from operations.

There is significant uncertainty surrounding the futures of Fannie Mae and Freddie Mac (the “Government Sponsored Enterprises” or “GSEs”). Through their lender originator networks, the GSEs are significant lenders both to the Company and to buyers of the Company's properties. The GSEs have a mandate to support multifamily housing through their financing activities. Any changes to their mandates, further reductions in their size or the scale of their activities or loss of key personnel could have a significant impact on the Company and may, among other things, lead to lower values for our assets and higher interest rates on our borrowings. The regulator of the GSEs required the GSEs to decrease their 2013 multifamily lending activities by 10% compared to 2012 levels. No such mandate is expected to be announced for 2014, however, it remains unclear if future reductions or changes could be mandated. The GSEs' regulator may require the GSEs to focus more of their lending activities on properties that the regulator deems affordable, which may or may not include the Company's assets. Reductions in GSE activity or increases in GSE loan pricing may also provide a competitive advantage to us by making the cost of financing multifamily properties more expensive for other multifamily owners while the Company continues to have access to cheaper capital in the public and private debt and equity markets. Over time, we expect that other lenders, including the commercial mortgage-backed securities market and life insurance companies, will become larger sources of debt capital to the multifamily market because multifamily properties are attractive to lenders due to their relatively stable cash flows.

We expect continued growth in revenue (anticipated 2014 same store revenue increase ranging from 3.9% to 4.1%) and NOI (anticipated 2014 same store NOI increase ranging from 4.5% to 5.0%) and are optimistic that the continued strength in fundamentals across most of our markets will produce solid performance through 2014. These same store revenue and NOI growth assumptions are both towards the high end of the Company's original projections budgeted in February 2014. These same-store assumptions include the 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company. During the first half of 2014, same store revenues increased 4.0% over the first half of 2013. We believe the key drivers behind the anticipated increase in revenue are base rent pricing for new residents, renewal pricing for existing residents, resident turnover and physical occupancy. For 2014, we now expect average base rent growth of 3.5% (vs. original guidance of 3.25%), an increase in renewal rates of 5.0% (vs. original guidance of 4.75%), occupancy of 95.5% (vs. original guidance of 95.4%) and turnover at 51.0% (vs. original guidance of 51.5%).

With the exception of Washington, D.C., all of our other markets are generally performing better than original expectations back in February 2014. As noted above, demand for our apartments has been stronger than expected, with higher occupancy and lower turnover due in part to declines in move outs to buy new homes. In general, new supply continues to be absorbed in an

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orderly fashion with lease-ups occurring faster than expected with only minimal impact on rents at nearby stabilized assets. However, Washington D.C. continues to show signs of stress as substantial new supply and the impact of sequestration and furloughs have dampened the metro area economy. We expect our Washington D.C. results to produce a 1% decline in same store revenues during 2014, which will likely reduce our expected Company-wide same store revenue growth by 1%. Despite slow growth in the overall economy and the issues noted in Washington D.C., our business continues to perform well because of the combined forces of demographics, household formations and increasing consumer preference for the flexibility of rental housing, all of which should ensure a continued strong demand for rental housing.

The Company anticipates that 2014 same store expenses will increase 2.25% to 2.75%, in line with previous expectations, primarily due to increases in real estate taxes, which are now expected to increase 6.2%, and utilities, which are now expected to increase between 6% and 7%. During the first half of 2014, same store expenses increased 2.3% over the first half of 2013, with real estate taxes up 6.2% and utilities up 8.0%. The increase in real estate taxes is primarily due to rate and value increases in certain states and municipalities, reflecting those states' and municipalities' continued economic challenges and the dramatic improvement in apartment values and fundamentals as well as the continued burn off of 421a tax abatements in New York City. The increase in utilities is primarily due to a combination of increases in natural gas prices, increased consumption of gas and electric due to historically low temperatures and increases in water and sewer costs as many municipalities have antiquated systems with limited revenue for modernization. Expense growth in the controllable property level expenses (excluding real estate taxes and utilities) declined 1.8% as the Company leverages the geographic locations of its new same-store portfolio (as a result of the Archstone Transaction and the 2013 disposition program) and technology to lower costs, which should partially offset the increase in real estate taxes and utilities. We expect that the beneficial impact resulting from Archstone synergies will continue to diminish over the remainder of the year.

We believe that the Company is well-positioned as of June 30, 2014 because our properties are geographically diverse, were approximately 95.3% occupied (96.1% on a same store basis) and the long-term demographic picture is positive. We believe certain market areas, especially Washington D.C., downtown Boston and Cambridge and Seattle, will see substantial near term multifamily supply yet total new supply levels for our core markets remain within historical ranges. We believe over the longer term that our core markets will absorb future supply without material marketwide disruption because of the high occupancy levels we currently experience and increasing household formations. We have seen evidence of this in Seattle as supply has been absorbed and rental rates continue to grow. We believe our strong balance sheet and ample liquidity will allow us to fund our debt maturities and development costs in the near term, and should also allow us to take advantage of investment opportunities in the future.

The current environment information presented above is based on current expectations and is forward-looking.

Results of Operations

In conjunction with our business objectives and operating strategy, the Company continued to invest in apartment properties located in strategically targeted markets during the six months ended June 30, 2014 as follows:

▪ Acquired one consolidated apartment property consisting of 430 apartment units for $143.0 million at a cap rate (see definition below) of 4.9%, one land parcel for $10.3 million and additional development rights at one of its existing land sites for $5.5 million;

▪ Acquired two consolidated apartment properties, one that just completed lease up and the other which is still in lease up, consisting of 342 apartment units for $106.6 million and are expected to stabilize at a 6.4% yield on cost and a 4.9% yield on cost, respectively; and

▪ Sold one consolidated apartment property consisting of 336 apartments units for $40.9 million at a cap rate of 6.7% generating an unlevered internal rate of return ("IRR"), inclusive of management costs, of 7.9%, and a land parcel for $8.2 million.

The Company's primary financial measure for evaluating each of its apartment communities is net operating income (“NOI”). NOI represents rental income less property and maintenance expense, real estate tax and insurance expense and property management expense. The Company believes that NOI is helpful to investors as a supplemental measure of its operating performance because it is a direct measure of the actual operating results of the Company's apartment communities. The cap rate is generally the first year NOI yield (net of replacements) on the Company's investment.

Properties that the Company owned and were stabilized (see definition below) for all of both of the six months ended June 30, 2014 and 2013 as well as the 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company (the “Six-Month 2014 Same Store Properties”), which represented 100,648 apartment units, and properties that the Company owned and were stabilized for all of both of the quarters ended June 30, 2014 and 2013 (the "Second Quarter 2014 Same Store Properties"), which represented 100,648 apartment units, impacted the Company's results of

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operations. Both the Six-Month 2014 Same Store Properties and the Second Quarter 2014 Same Store Properties are discussed in the following paragraphs.

The following tables provide a rollforward of the apartment units included in Same Store Properties and a reconciliation of apartment units included in Same Store Properties to those included in Total Properties for the six months and quarter ended June 30, 2014:

	Six Months Ended				Quarter Ended
	June 30, 2014				June 30, 2014
	Properties		Apartment Units		Properties		Apartment Units
Same Store Properties at Beginning of Period	296		80,247		375		100,984
2012 acquisitions	9		1,896		—		—
2013 acquisitions	77		22,103		—		—
2013 acquisitions not yet included in same store (1)	(1	)	(322	)	—		—
2013 acquisitions not yet stabilized (2)	(2	)	(613	)	—		—
2013 acquisitions not managed by the Company (3)	(3	)	(853	)	—		—
2013 acquisitions not consolidated	(1	)	(336	)	—		—
2013 acquisitions disposed of in 2013 (4)	(3	)	(1,536	)	—		—
2014 dispositions	(1	)	(336	)	(1	)	(336	)
Lease-up properties stabilized	3		374		—		—
Other	—		24		—		—
Same Store Properties at June 30, 2014	374		100,648		374		100,648

	Six Months Ended		Quarter Ended
	June 30, 2014		June 30, 2014
	Properties	Apartment Units	Properties	Apartment Units
Same Store	374	100,648	374	100,648
Non-Same Store:
2014 acquisitions	1	430	1	430
2014 acquisitions not yet stabilized (2)	2	342	2	342
2013 acquisitions not yet included in same store (1)	1	322	1	322
2013 acquisitions not yet stabilized (2)	2	613	2	613
2013 acquisitions not managed by the Company (3)	3	853	3	853
2013 acquisitions not consolidated	1	336	1	336
Lease-up properties not yet stabilized (2)	10	2,939	10	2,939
Other	1	1	1	1
Total Non-Same Store	21	5,836	21	5,836
Military Housing (not consolidated)	2	5,007	2	5,007
Total Properties and Apartment Units	397	111,491	397	111,491

Note: Properties are considered "stabilized" when they have achieved 90% occupancy for three consecutive months. Properties are included in Same Store when they are stabilized for all of the current and comparable periods presented. Same store includes the 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company, with pro forma pre-ownership results for the period January 1, 2013 to February 27, 2013.

(1) Includes one property containing 322 apartment units acquired in 2013 separately from the Archstone Acquisition.

(2) Includes properties in various stages of lease-up and properties where lease-up has been completed but the properties were not stabilized for the comparable periods presented.

(3) Includes three properties containing 853 apartments units acquired on February 27, 2013 in conjunction with the Archstone Acquisition that are owned by the Company but the entire projects are master leased to a third party corporate housing provider and the Company earns monthly net rental income.

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(4) Includes three properties containing 1,536 apartment units acquired on February 27, 2013 in conjunction with the Archstone Acquisition that were subsequently sold in 2013.

The Company’s acquisition, disposition and completed development activities also impacted overall results of operations for the six months and quarters ended June 30, 2014 and 2013. The impacts of these activities are discussed in greater detail in the following paragraphs.

Comparison of the six months ended June 30, 2014 to the six months ended June 30, 2013

For the six months ended June 30, 2014, the Company reported diluted earnings per share/unit of $0.52 compared to $3.84 per share/unit in the same period of 2013. The difference is primarily due to approximately $1.6 billion in higher gains on property sales in 2013 vs. 2014, partially offset by $66.3 million of higher merger-related expenses incurred in 2013 vs. 2014 in connection with the Archstone Acquisition, $71.4 million of prepayment penalties incurred in 2013 in connection with early debt extinguishment of existing mortgage notes payable to manage the Company's post Archstone 2017 maturities profile and higher depreciation in 2013 as a direct result of in-place residential lease intangibles acquired in the Archstone Transaction.

For the six months ended June 30, 2014, income from continuing operations increased approximately $407.8 million when compared to the six months ended June 30, 2013. The increase in continuing operations is discussed below.

Revenues from the Six-Month 2014 Same Store Properties increased $48.1 million primarily as a result of an increase in average rental rates charged to residents, slightly higher occupancy and a decrease in turnover. Expenses from the Six-Month 2014 Same Store Properties increased $9.6 million primarily due to increases in real estate taxes and utilities, partially offset by lower on-site payroll and property management costs. The following tables provide comparative same store results and statistics for the Six-Month 2014 Same Store Properties:

June YTD 2014 vs. June YTD 2013
Same Store Results/Statistics for 100,648 Same Store Apartment Units
$ in thousands (except for Average Rental Rate)
	Results									Statistics
Description	Revenues			Expenses			NOI			Average Rental Rate (1)			Occupancy		Turnover
YTD 2014	$	1,239,506		$	426,227		$	813,279		$	2,152		95.4	%	25.6	%
YTD 2013	$	1,191,430		$	416,591		$	774,839		$	2,072		95.3	%	26.5	%
Change	$	48,076		$	9,636		$	38,440		$	80		0.1	%	(0.9	%)
Change	4.0		%	2.3		%	5.0		%	3.9		%
Note: Same store results/statistics include 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.
(1) Average rental rate is defined as total rental revenues divided by the weighted average occupied apartment units for the period.

The following table provides comparative same store operating expenses for the Six-Month 2014 Same Store Properties:

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June YTD 2014 vs. June YTD 2013
Same Store Operating Expenses for 100,648 Same Store Apartment Units
$ in thousands
	Actual YTD 2014		Actual YTD 2013		$ Change			% Change		% of Actual YTD 2014 Operating Expenses
Real estate taxes	$	146,077	$	137,553	$	8,524		6.2	%	34.3	%
On-site payroll (1)	87,506		88,704		(1,198		)	(1.4	%)	20.5	%
Utilities (2)	66,708		61,768		4,940			8.0	%	15.7	%
Repairs and maintenance (3)	52,991		51,945		1,046			2.0	%	12.4	%
Property management costs (4)	37,805		39,317		(1,512		)	(3.8	%)	8.9	%
Insurance	12,459		12,609		(150		)	(1.2	%)	2.9	%
Leasing and advertising	5,063		6,135		(1,072		)	(17.5	%)	1.2	%
Other on-site operating expenses (5)	17,618		18,560		(942		)	(5.1	%)	4.1	%
Same store operating expenses	$	426,227	$	416,591	$	9,636		2.3	%	100.0	%

(1) On-site payroll – Includes payroll and related expenses for on-site personnel including property managers, leasing consultants and maintenance staff.

(2) Utilities – Represents gross expenses prior to any recoveries under the Resident Utility Billing System (“RUBS”). Recoveries are reflected in rental income.

(3) Repairs and maintenance – Includes general maintenance costs, apartment unit turnover costs including interior painting, routine landscaping, security, exterminating, fire protection, snow removal, elevator, roof and parking lot repairs and other miscellaneous building repair costs.

(4) Property management costs – Includes payroll and related expenses for departments, or portions of departments, that directly support on-site management. These include such departments as regional and corporate property management, property accounting, human resources, training, marketing and revenue management, procurement, real estate tax, property legal services and information technology.

(5) Other on-site operating expenses – Includes ground lease costs and administrative costs such as office supplies, telephone and data charges and association and business licensing fees.

The following table presents a reconciliation of operating income per the consolidated statements of operations and comprehensive income to NOI for the Six-Month 2014 Same Store Properties:

	Six Months Ended June 30,
	2014			2013
	(Amounts in thousands)
Operating income	$	427,556		$	168,223
Adjustments:
Archstone pre-ownership operating results	—			55,694
Non-same store operating results	(18,429		)	426
Fee and asset management revenue	(5,519		)	(4,833		)
Fee and asset management expense	3,040			3,223
Depreciation	375,303			519,526
General and administrative	31,328			32,580
Same store NOI	$	813,279		$	774,839

For properties that the Company acquired prior to January 1, 2013 and expects to continue to own through December 31, 2014 as well as the 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company, the Company anticipates the following same store results for the full year ending December 31, 2014:

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2014 Same Store Assumptions
Physical occupancy	95.5%
Revenue change	3.9% to 4.1%
Expense change	2.25% to 2.75%
NOI change	4.5% to 5.0%

The Company anticipates consolidated rental acquisitions of $500.0 million and consolidated rental dispositions of $500.0 million and expects that acquisitions will have a 1.00% lower cap rate than dispositions for the full year ending December 31, 2014.

These 2014 assumptions are based on current expectations and are forward-looking.

Non-same store operating results increased approximately $18.9 million and consist primarily of properties acquired in calendar years 2013 and 2014 as well as operations from the Company’s completed development properties, but exclude the 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company. This increase primarily resulted from:

▪ Development and newly stabilized development properties in lease-up of $6.1 million;

▪ Operating properties acquired in 2013 and 2014 of $4.9 million (excluding operating properties acquired in the Archstone Acquisition);

▪ Other miscellaneous properties (including three master-leased properties acquired in the Archstone Acquisition) of $2.2 million; and

▪ Operating activities from other miscellaneous operations.

See also Note 13 in the Notes to Consolidated Financial Statements for additional discussion regarding the Company’s segment disclosures.

Fee and asset management revenues, net of fee and asset management expenses, increased approximately $0.9 million or 54.0% primarily as a result of higher revenue earned on management of the Company's military housing ventures at Fort Lewis and McChord Air Force base and higher fees earned on management of the Company's unconsolidated development joint ventures.

Property management expenses from continuing operations include off-site expenses associated with the self-management of the Company’s properties as well as management fees paid to any third party management companies. These expenses decreased approximately $1.8 million or 4.1%. This decrease is primarily attributable to a decrease in payroll-related costs, a decrease in computer operations due to the modernization of employee technology in 2013 and a decrease in office rent.

Depreciation expense from continuing operations, which includes depreciation on non-real estate assets, decreased approximately $144.2 million or 27.8% primarily as a result of in-place residential lease intangibles which are generally amortized over a six month period and can significantly elevate depreciation expense following an acquisition, especially during 2013 as a direct result of the Archstone Acquisition, partially offset by additional depreciation expense on properties acquired in 2014, development properties placed in service and capital expenditures for all properties owned.

General and administrative expenses from continuing operations, which include corporate operating expenses, decreased approximately $1.3 million or 3.8% primarily due to a decrease in payroll-related costs, partially offset by an increase in office rent. The Company anticipates that general and administrative expenses will approximate $50.0 million to $52.0 million for the year ending December 31, 2014. The above assumption is based on current expectations and is forward-looking.

Interest and other income from continuing operations increased approximately $1.9 million primarily due to the settlement of various litigation/insurance claims totaling $2.3 million during the six months ended June 30, 2014 that did not occur in 2013. The Company anticipates that interest and other income, excluding the $2.3 million in settlements discussed above, will approximate $0.5 million for the year ending December 31, 2014. The above assumption is based on current expectations and is forward-looking.

Other expenses from continuing operations decreased approximately $21.2 million or 90.6% primarily due to the closing of the Archstone Acquisition during the six months ended June 30, 2013 and the significant decline in transaction activity during the six months ended June 30, 2014.

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Interest expense from continuing operations, including amortization of deferred financing costs, decreased approximately $93.8 million or 28.5% primarily as a result of $78.8 million of debt extinguishment costs incurred on early debt prepayments and write-offs of unamortized deferred financing costs in 2013 on existing mortgage notes payable to manage the Company's post Archstone 2017 maturities profile and higher capitalized interest in 2014. During the six months ended June 30, 2014, the Company capitalized interest costs of approximately $25.0 million as compared to $20.0 million for the six months ended June 30, 2013. This capitalization of interest primarily relates to consolidated projects under development. The effective interest cost on all indebtedness for the six months ended June 30, 2014 was 4.72% as compared to 5.03% (excluding prepayment penalties) for the six months ended June 30, 2013. The Company anticipates that interest expense from continuing operations will approximate $456.7 million to $465.1 million for the year ending December 31, 2014. The above assumption is based on current expectations and is forward-looking.

Income and other tax expense from continuing operations increased approximately $0.1 million or 6.4% primarily due to increases and timing of all other taxes. The Company anticipates that income and other tax expense will approximate $1.0 million to $2.0 million for the year ending December 31, 2014. The above assumption is based on current expectations and is forward-looking.

Loss from investments in unconsolidated entities decreased by $45.5 million or 83.5% primarily due to indirect costs incurred in 2013 from the Archstone Acquisition through the Company's joint ventures with AVB such as severance and retention bonuses that did not reoccur in 2014.

Net gain on sales of land parcels decreased approximately $13.8 million or 94.6% due to the gain on sale of five land parcels during the six months ended June 30, 2013 as compared to one land sale during the six months ended June 30, 2014.

Discontinued operations, net decreased approximately $1.6 billion between the periods under comparison. This decrease is primarily due to substantially higher sales volume during the six months ended June 30, 2013 compared to the same period in 2014. See Note 11 in the Notes to Consolidated Financial Statements for further discussion.

Net gain on sales of real estate properties increased $14.9 million as a result of the sale of one consolidated apartment property during the six months ended June 30, 2014 that did not meet the new criteria for reporting discontinued operations. See Notes 2 and 11 in the Notes to Consolidated Financial Statements for further discussion.

Comparison of the quarter ended June 30, 2014 to the quarter ended June 30, 2013

For the quarter ended June 30, 2014, the Company reported diluted earnings per share/unit of $0.31 compared to $0.90 per share/unit in the same period of 2013. The difference is primarily due to approximately $374.9 million in higher gains on property sales in 2013 vs. 2014, partially offset by higher depreciation in 2013 as a direct result of in-place residential lease intangibles acquired in the Archstone Transaction.

For the quarter ended June 30, 2014, income from continuing operations increased approximately $160.8 million when compared to the quarter ended June 30, 2013. The increase in continuing operations is discussed below.

Revenues from the Second Quarter 2014 Same Store Properties increased $24.7 million primarily as a result of an increase in average rental rates charged to residents, slightly higher occupancy and a decrease in turnover. Expenses from the Second Quarter 2014 Same Store Properties increased $2.9 million primarily due to an increase in real estate taxes, partially offset by lower property management costs. The following tables provide comparative same store results and statistics for the Second Quarter 2014 Same Store Properties:

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Second Quarter 2014 vs. Second Quarter 2013
Same Store Results/Statistics for 100,648 Same Store Apartment Units
$ in thousands (except for Average Rental Rate)
	Results									Statistics
Description	Revenues			Expenses			NOI			Average Rental Rate (1)			Occupancy		Turnover
Q2 2014	$	626,746		$	208,086		$	418,660		$	2,168		95.8	%	14.2	%
Q2 2013	$	602,046		$	205,213		$	396,833		$	2,088		95.6	%	14.4	%
Change	$	24,700		$	2,873		$	21,827		$	80		0.2	%	(0.2	%)
Change	4.1		%	1.4		%	5.5		%	3.8		%
Note: Same store results/statistics include 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.
(1) Average rental rate is defined as total rental revenues divided by the weighted average occupied apartment units for the period.

The following table provides comparative same store operating expenses for the Second Quarter 2014 Same Store Properties:

Second Quarter 2014 vs. Second Quarter 2013
Same Store Operating Expenses for 100,648 Same Store Apartment Units
$ in thousands
	Actual Q2 2014		Actual Q2 2013		$ Change			% Change		% of Actual Q2 2014 Operating Expenses
Real estate taxes	$	73,076	$	68,776	$	4,300		6.3	%	35.1	%
On-site payroll (1)	43,933		43,313		620			1.4	%	21.1	%
Utilities (2)	28,495		28,403		92			0.3	%	13.7	%
Repairs and maintenance (3)	27,116		26,787		329			1.2	%	13.0	%
Property management costs (4)	18,802		19,867		(1,065		)	(5.4	%)	9.1	%
Insurance	6,230		6,305		(75		)	(1.2	%)	3.0	%
Leasing and advertising	2,500		3,110		(610		)	(19.6	%)	1.2	%
Other on-site operating expenses (5)	7,934		8,652		(718		)	(8.3	%)	3.8	%
Same store operating expenses	$	208,086	$	205,213	$	2,873		1.4	%	100.0	%

(1) On-site payroll – Includes payroll and related expenses for on-site personnel including property managers, leasing consultants and maintenance staff.

(2) Utilities – Represents gross expenses prior to any recoveries under the Resident Utility Billing System (“RUBS”). Recoveries are reflected in rental income.

(3) Repairs and maintenance – Includes general maintenance costs, apartment unit turnover costs including interior painting, routine landscaping, security, exterminating, fire protection, snow removal, elevator, roof and parking lot repairs and other miscellaneous building repair costs.

(4) Property management costs – Includes payroll and related expenses for departments, or portions of departments, that directly support on-site management. These include such departments as regional and corporate property management, property accounting, human resources, training, marketing and revenue management, procurement, real estate tax, property legal services and information technology.

(5) Other on-site operating expenses – Includes ground lease costs and administrative costs such as office supplies, telephone and data charges and association and business licensing fees.

The following table presents a reconciliation of operating income per the consolidated statements of operations and comprehensive income to NOI for the Second Quarter 2014 Same Store Properties:

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	Quarter Ended June 30,
	2014			2013
	(Amounts in thousands)
Operating income	$	228,304		$	63,977
Adjustments:
Non-same store operating results	(12,108		)	(5,437		)
Fee and asset management revenue	(2,802		)	(2,673		)
Fee and asset management expense	1,378			1,577
Depreciation	190,136			323,304
General and administrative	13,752			16,085
Same store NOI	$	418,660		$	396,833

Non-same store operating results increased approximately $6.7 million and consist primarily of properties acquired in calendar years 2013 and 2014 as well as operations from the Company’s completed development properties, but exclude the 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company. This increase primarily resulted from:

▪ Development and newly stabilized development properties in lease-up of $3.6 million;

▪ Operating properties acquired in 2013 and 2014 of $2.3 million (excluding operating properties acquired in the Archstone Acquisition);

▪ Operating activities from other miscellaneous operations; and

▪ Partially offset by a decrease in other miscellaneous properties (including three master-leased properties acquired in the Archstone Acquisition) of $0.4 million.

See also Note 13 in the Notes to Consolidated Financial Statements for additional discussion regarding the Company’s segment disclosures.

Fee and asset management revenues, net of fee and asset management expenses, increased approximately $0.3 million or 29.9% primarily as a result of higher fees earned on management of the Company's unconsolidated joint ventures.

Property management expenses from continuing operations include off-site expenses associated with the self-management of the Company’s properties as well as management fees paid to any third party management companies. These expenses decreased approximately $1.5 million or 6.7%. This decrease is primarily attributable to a decrease in payroll-related costs and a decrease in office rent.

Depreciation expense from continuing operations, which includes depreciation on non-real estate assets, decreased approximately $133.2 million or 41.2% primarily as a result of in-place residential lease intangibles which are generally amortized over a six month period and can significantly elevate depreciation expense following an acquisition, especially during 2013 as a direct result of the Archstone Acquisition, partially offset by additional depreciation expense on properties acquired in 2014, development properties placed in service and capital expenditures for all properties owned.

General and administrative expenses from continuing operations, which include corporate operating expenses, decreased approximately $2.3 million or 14.5% primarily due to a decrease in payroll-related costs, partially offset by an increase in office rent.

Interest and other income from continuing operations increased approximately $1.6 million primarily due to the settlement of various litigation/insurance claims during the quarter ended June 30, 2014 that did not occur in 2013.

Other expenses from continuing operations decreased approximately $0.1 million or 6.0% primarily due to the closing of the Archstone Acquisition during 2013, partially offset by an increased focus on sourcing new development activities during 2014.

Interest expense from continuing operations, including amortization of deferred financing costs, decreased approximately $8.2 million or 6.5% primarily as a result of the repayment of the Company's $750.0 million unsecured term loan facility in June 2014, the repayment of $963.5 million of 5.883% mortgage debt (which was assumed as part of the Archstone Transaction) in October 2013 and the partial paydown of $825.0 million of 6.256% mortgage debt (which was assumed as part of the Archstone Transaction) in October 2013 as well as higher capitalized interest in 2014, partially offset by interest expense on $1.2 billion of

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unsecured notes that closed in June 2014 and an $800.0 million loan pool that closed in October 2013. During the quarter ended June 30, 2014, the Company capitalized interest costs of approximately $12.2 million as compared to $11.6 million for the quarter ended June 30, 2013. This capitalization of interest primarily relates to consolidated projects under development. The effective interest cost on all indebtedness for the quarter ended June 30, 2014 was 4.75% as compared to 4.65% for the quarter ended June 30, 2013.

Income and other tax expense from continuing operations increased approximately $0.2 million or 50.9% primarily due to increases and timing of all other taxes.

Loss from investments in unconsolidated entities decreased by $0.6 million or 6.8% primarily due to indirect costs incurred in 2013 from the Archstone Acquisition through the Company's joint ventures with AVB such as severance and retention bonuses that have significantly decreased in 2014.

Net gain on sales of land parcels decreased approximately $13.8 million or 94.4% due to the gain on sale of five land parcels during the quarter ended June 30, 2013 as compared to one land sale during the quarter ended June 30, 2014.

Discontinued operations, net decreased approximately $394.7 million between the periods under comparison. This decrease is primarily due to substantially higher sales volume during the quarter ended June 30, 2013 compared to the same period in 2014. See Note 11 in the Notes to Consolidated Financial Statements for further discussion.

Net gain on sales of real estate properties increased $14.9 million as a result of the sale of one consolidated apartment property during the quarter ended June 30, 2014 that did not meet the new criteria for reporting discontinued operations. See Notes 2 and 11 in the Notes to Consolidated Financial Statements for further discussion.

Liquidity and Capital Resources

EQR issues public equity from time to time and guarantees certain debt of ERPOP. EQR does not have any indebtedness as all debt is incurred by the Operating Partnership.

As of January 1, 2014, the Company had approximately $53.5 million of cash and cash equivalents and it had $2.35 billion available under its revolving credit facility (net of $34.9 million which was restricted/dedicated to support letters of credit and net of $115.0 million outstanding). After taking into effect the various transactions discussed in the following paragraphs and the net cash provided by operating activities, the Company’s cash and cash equivalents balance at June 30, 2014 was approximately $76.1 million and the amount available on its revolving credit facility was $2.47 billion (net of $34.8 million which was restricted/dedicated to support letters of credit).

During the six months ended June 30, 2014, the Company generated proceeds from various transactions, which included the following:

▪ Disposed of one consolidated property and a portion of a land parcel, receiving net proceeds of approximately $48.4 million;

▪ Issued $450.0 million of five-year 2.375% fixed rate public notes, receiving net proceeds of $449.6 million before underwriting fees and other expenses, at an all-in effective interest rate of 2.52%;

▪ Issued $750.0 million of thirty-year 4.50% fixed rate public notes, receiving net proceeds of $744.7 million before underwriting fees, hedge termination costs and other expenses, at an all-in effective interest rate of 4.57%;

▪ Received approximately $64.7 million representing the Company's pro rata share of the proceeds/distributions that have been repatriated to the Residual JV as a result of the disposition of the majority of the remaining German real estate assets that were acquired by the Residual JV as part of the Archstone Acquisition (see Note 6); and

▪ Issued approximately 0.9 million Common Shares related to share option exercises and ESPP purchases and received net proceeds of $27.9 million, which were contributed to the capital of the Operating Partnership in exchange for additional OP Units (on a one-for-one Common Share per OP Unit basis).

During the six months ended June 30, 2014, the above proceeds along with net cash flow from operations and availability on the Company's revolving line of credit were primarily utilized to:

▪ Acquire three rental properties, one land parcel and additional development rights at one of its existing land sites for approximately $265.5 million;

▪ Invest $245.7 million primarily in development projects;

▪ Repay $9.1 million of mortgage loans;

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▪ Repay its $750.0 million unsecured term loan facility in conjunction with the note issuances discussed above; and

▪ Repurchase 31,240 Common Shares, utilizing cash of $1.8 million (See Note 3).

On February 27, 2013, the Company issued 34,468,085 Common Shares to an affiliate of Lehman Brothers Holdings Inc. as partial consideration for the portion of the Archstone Portfolio acquired by the Company. The shares had a total value of $1.9 billion based on the February 27, 2013 closing price of EQR Common Shares of $55.99 per share. Concurrent with this transaction, ERPOP issued 34,468,085 OP Units to EQR. On March 7, 2013, EQR filed a shelf registration statement relating to the resale of these shares by the selling shareholders. Lehman has since sold all of these Common Shares.

In September 2009, EQR announced the establishment of an At-The-Market (“ATM”) share offering program which would allow EQR to sell Common Shares from time to time into the existing trading market at current market prices as well as through negotiated transactions. Per the terms of ERPOP’s partnership agreement, EQR contributes the net proceeds from all equity offerings to the capital of ERPOP in exchange for additional OP Units (on a one-for-one Common Share per OP Unit basis). EQR may, but shall have no obligation to, sell Common Shares through the ATM share offering program in amounts and at times to be determined by EQR. Actual sales will depend on a variety of factors to be determined by EQR from time to time, including (among others) market conditions, the trading price of EQR’s Common Shares and determinations of the appropriate sources of funding for EQR. On July 30, 2013, the Board of Trustees approved an increase to the amount of shares which may be offered under the ATM program to 13.0 million Common Shares and extended the program maturity to July 2016. EQR has not issued any shares under this program since September 14, 2012. Through July 31, 2014, EQR has cumulatively issued approximately 16.7 million Common Shares at an average price of $48.53 per share for total consideration of approximately $809.9 million.

Depending on its analysis of market prices, economic conditions and other opportunities for the investment of available capital, EQR may repurchase its Common Shares pursuant to its existing share repurchase program authorized by the Board of Trustees. Effective July 30, 2013, the Board of Trustees approved an increase and modification to the Company's share repurchase program to allow for the potential repurchase of up to 13.0 million shares. EQR repurchased approximately $1.8 million (31,240 shares at a price of $56.87 per share) of its Common Shares (all related to the vesting of employees' restricted shares) during the six months ended June 30, 2014. No open market repurchases have occurred since 2008. As of July 31, 2014, EQR has remaining authorization to repurchase an additional 12,968,760 of its shares. See Note 3 in the Notes to Consolidated Financial Statements for further discussion.

Depending on its analysis of prevailing market conditions, liquidity requirements, contractual restrictions and other factors, the Company may from time to time seek to repurchase and retire its outstanding debt in open market or privately negotiated transactions.

The Company’s total debt summary and debt maturity schedules as of June 30, 2014 are as follows:

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Debt Summary as of June 30, 2014
(Amounts in thousands)
	Amounts (1)		% of Total		Weighted Average Rates (1)		Weighted Average Maturities (years)
Secured	$	5,158,091	46.5	%	4.23	%	7.9
Unsecured	5,923,952		53.5	%	4.74	%	7.8
Total	$	11,082,043	100.0	%	4.50	%	7.9
Fixed Rate Debt:
Secured – Conventional	$	4,375,827	39.5	%	4.85	%	6.4
Unsecured – Public	5,472,950		49.4	%	5.53	%	8.0
Fixed Rate Debt	9,848,777		88.9	%	5.20	%	7.4
Floating Rate Debt:
Secured – Conventional	56,738		0.5	%	2.25	%	0.3
Secured – Tax Exempt	725,526		6.5	%	0.66	%	16.7
Unsecured – Public (2)	451,002		4.1	%	1.32	%	5.0
Unsecured – Revolving Credit Facility	—		—		0.96	%	3.8
Floating Rate Debt	1,233,266		11.1	%	1.02	%	11.8
Total	$	11,082,043	100.0	%	4.50	%	7.9

(1) Net of the effect of any derivative instruments. Weighted average rates are for the six months ended June 30, 2014.

(2) Fair value interest rate swaps convert the $450.0 million 2.375% notes due July 1, 2019 to a floating interest rate of 90-Day LIBOR plus 0.61%.

Note: The Company capitalized interest of approximately $25.0 million and $20.0 million during the six months ended June 30, 2014 and 2013, respectively. The Company capitalized interest of approximately $12.2 million and $11.6 million during the quarters ended June 30, 2014 and 2013, respectively.

Debt Maturity Schedule as of June 30, 2014
(Amounts in thousands)
Year	Fixed Rate (1)		Floating Rate (1)			Total			% of Total		Weighted Average Rates on Fixed Rate Debt (1)		Weighted Average Rates on Total Debt (1)
2014	$	505,831	$	48,753		$	554,584		5.0	%	5.25	%	5.02	%
2015	420,712		—			420,712			3.8	%	6.28	%	6.28	%
2016	1,193,107		—			1,193,107			10.8	%	5.34	%	5.34	%
2017	1,346,581		456			1,347,037			12.1	%	6.16	%	6.16	%
2018	84,196		97,659			181,855			1.6	%	5.61	%	3.13	%
2019	806,469		472,218			1,278,687			11.5	%	5.48	%	3.76	%
2020	1,678,413		809			1,679,222			15.2	%	5.49	%	5.49	%
2021	1,195,041		856			1,195,897			10.8	%	4.63	%	4.64	%
2022	228,716		905			229,621			2.1	%	3.17	%	3.18	%
2023	1,302,847		956			1,303,803			11.8	%	3.75	%	3.75	%
2024+	1,046,561		674,988			1,721,549			15.5	%	4.99	%	3.21	%
Premium/(Discount)	40,303		(64,334		)	(24,031		)	(0.2	%)	N/A		N/A
Total	$	9,848,777	$	1,233,266		$	11,082,043		100.0	%	5.14	%	4.63	%

(1) Net of the effect of any derivative instruments. Weighted average rates are as of June 30, 2014.

The following table provides a summary of the Company’s unsecured debt as of June 30, 2014:

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Unsecured Debt Summary as of June 30, 2014
(Amounts in thousands)
	Coupon Rate	Due Date		Face Amount			Unamortized Premium/ (Discount)			Net Balance
Fixed Rate Notes:
	5.250%	09/15/14		$	500,000		$	(13	)	$	499,987
	6.584%	04/13/15		300,000			(83		)	299,917
	5.125%	03/15/16		500,000			(90		)	499,910
	5.375%	08/01/16		400,000			(386		)	399,614
	5.750%	06/15/17		650,000			(1,526		)	648,474
	7.125%	10/15/17		150,000			(213		)	149,787
	2.375%	07/01/19	(1)	450,000			(450		)	449,550
Fair Value Derivative Adjustments			(1)	(450,000		)	450			(449,550		)
	4.750%	07/15/20		600,000			(2,747		)	597,253
	4.625%	12/15/21		1,000,000			(2,826		)	997,174
	3.000%	04/15/23		500,000			(3,894		)	496,106
	7.570%	08/15/26		140,000			—			140,000
	4.500%	07/01/44		750,000			(5,272		)	744,728
				5,490,000			(17,050		)	5,472,950
Floating Rate Notes:
		07/01/19	(1)	450,000			(450		)	449,550
Fair Value Derivative Adjustments		07/01/19	(1)	1,452			—			1,452
				451,452			(450		)	451,002
Revolving Credit Facility:	LIBOR+1.05%	04/01/18	(2)(3)	—			—			—
Total Unsecured Debt				$	5,941,452		$	(17,500	)	$	5,923,952

(1) Fair value interest rate swaps convert the $450.0 million 2.375% notes due July 1, 2019 to a floating interest rate of 90-Day LIBOR plus 0.61%.

(2) Facility is private. All other unsecured debt is public.

(3) Represents the Company's $2.5 billion unsecured revolving credit facility maturing April 1, 2018. The interest rate on advances under the credit facility will generally be LIBOR plus a spread (currently 1.05%) and an annual facility fee (currently 15 basis points). Both the spread and the facility fee are dependent on the credit rating of the Company's long-term debt. As of June 30, 2014, there was approximately $2.47 billion available on the Company's unsecured revolving credit facility.

An unspecified amount of equity and debt securities remains available for issuance by EQR and ERPOP under a universal shelf registration statement that automatically became effective upon filing with the SEC on July 30, 2013 and expires on July 30, 2016. In July 2013, the Board of Trustees also approved an increase to the amount of shares which may be offered under the ATM program to 13.0 million Common Shares and extended the program maturity to July 2016. Per the terms of ERPOP’s partnership agreement, EQR contributes the net proceeds of all equity offerings to the capital of ERPOP in exchange for additional OP Units (on a one-for-one Common Share per OP Unit basis) or preference units (on a one-for-one preferred share per preference unit basis).

The Company’s “Consolidated Debt-to-Total Market Capitalization Ratio” as of June 30, 2014 is presented in the following table. The Company calculates the equity component of its market capitalization as the sum of (i) the total outstanding Common Shares and assumed conversion of all Units at the equivalent market value of the closing price of the Company’s Common Shares on the New York Stock Exchange and (ii) the liquidation value of all perpetual preferred shares outstanding.

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Equity Residential
Capital Structure as of June 30, 2014
(Amounts in thousands except for share/unit and per share amounts)
Secured Debt					$	5,158,091	46.5	%
Unsecured Debt					5,923,952		53.5	%
Total Debt					11,082,043		100.0	%	31.8	%
Common Shares (includes Restricted Shares)	361,562,007		96.2	%
Units (includes OP Units and LTIP Units)	14,336,826		3.8	%
Total Shares and Units	375,898,833		100.0	%
Common Share Price at June 30, 2014	$	63.00
					23,681,626		99.8	%
Perpetual Preferred Equity (see below)					50,000		0.2	%
Total Equity					23,731,626		100.0	%	68.2	%
Total Market Capitalization					$	34,813,669			100.0	%

Equity Residential
Perpetual Preferred Equity as of June 30, 2014
(Amounts in thousands except for share and per share amounts)
Series	Redemption Date	Outstanding Shares	Liquidation Value		Annual Dividend Per Share		Annual Dividend Amount
Preferred Shares:
8.29% Series K	12/10/26	1,000,000	$	50,000	$	4.145	$	4,145
Total Perpetual Preferred Equity		1,000,000	$	50,000			$	4,145

The Operating Partnership’s “Consolidated Debt-to-Total Market Capitalization Ratio” as of June 30, 2014 is presented in the following table. The Operating Partnership calculates the equity component of its market capitalization as the sum of (i) the total outstanding Units at the equivalent market value of the closing price of the Company’s Common Shares on the New York Stock Exchange and (ii) the liquidation value of all perpetual preference units outstanding.

ERP Operating Limited Partnership
Capital Structure as of June 30, 2014
(Amounts in thousands except for unit and per unit amounts)
Secured Debt			$	5,158,091	46.5	%
Unsecured Debt			5,923,952		53.5	%
Total Debt			11,082,043		100.0	%	31.8	%
Total outstanding Units	375,898,833
Common Share Price at June 30, 2014	$	63.00
			23,681,626		99.8	%
Perpetual Preference Units (see below)			50,000		0.2	%
Total Equity			23,731,626		100.0	%	68.2	%
Total Market Capitalization			$	34,813,669			100.0	%

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ERP Operating Limited Partnership
Perpetual Preference Units as of June 30, 2014
(Amounts in thousands except for unit and per unit amounts)
Series	Redemption Date	Outstanding Units	Liquidation Value		Annual Dividend Per Unit		Annual Dividend Amount
Preference Units:
8.29% Series K	12/10/26	1,000,000	$	50,000	$	4.145	$	4,145
Total Perpetual Preference Units		1,000,000	$	50,000			$	4,145

The Company generally expects to meet its short-term liquidity requirements, including capital expenditures related to maintaining its existing properties and scheduled unsecured note and mortgage note repayments, through its working capital, net cash provided by operating activities and borrowings under the Company’s revolving credit facility. Under normal operating conditions, the Company considers its cash provided by operating activities to be adequate to meet operating requirements and payments of distributions.

The Company has a flexible dividend policy which it believes will generate payouts closely aligned with the actual annual operating results of the Company’s core business and provide transparency to investors. Beginning in 2014, the Company's annual dividend will be paid based on 65% of the midpoint of the range of Normalized FFO guidance customarily provided as part of the Company's fourth quarter earnings release. The Company expects the annual dividend payout will be $2.00 per share and the Company intends to pay four quarterly dividends of $0.50 per share in 2014. All future dividends remain subject to the discretion of the Board of Trustees. The above assumption is based on current expectations and is forward-looking. While our current dividend policy makes it less likely we will over distribute, it will also lead to a dividend reduction more quickly should operating results deteriorate. However, whether due to changes in the dividend policy or otherwise, there may be times when the Company experiences shortfalls in its coverage of distributions, which may cause the Company to consider reducing its distributions and/or using the proceeds from property dispositions or additional financing transactions to make up the difference. Should these shortfalls occur for lengthy periods of time or be material in nature, the Company's financial condition may be adversely affected and it may not be able to maintain its current distribution levels. The Company believes that its expected 2014 operating cash flow will be sufficient to cover capital expenditures and distributions.

The Company also expects to meet its long-term liquidity requirements, such as scheduled unsecured note and mortgage debt maturities, property acquisitions, financing of construction and development activities through the issuance of secured and unsecured debt and equity securities, including additional OP Units, proceeds received from the disposition of certain properties and joint ventures and cash generated from operations after all distributions. In addition, the Company has significant unencumbered properties available to secure additional mortgage borrowings in the event that the public capital markets are unavailable or the cost of alternative sources of capital is too high. The fair value of and cash flow from these unencumbered properties are in excess of the requirements the Company must maintain in order to comply with covenants under its unsecured notes and line of credit. Of the $27.3 billion in investment in real estate on the Company’s balance sheet at June 30, 2014, $18.6 billion or 68.1% was unencumbered. However, there can be no assurances that these sources of capital will be available to the Company in the future on acceptable terms or otherwise.

ERPOP’s credit ratings from Standard & Poor’s (“S&P”), Moody’s and Fitch for its outstanding senior debt are BBB+ (positive outlook), Baa1 and BBB+, respectively. EQR’s equity ratings from S&P, Moody’s and Fitch for its outstanding preferred equity are BBB+ (positive outlook), Baa2 and BBB-, respectively.

On January 11, 2013, the Company replaced its existing $1.75 billion facility with a $2.5 billion unsecured revolving credit facility maturing April 1, 2018. The Company has the ability to increase available borrowings by an additional $500.0 million by adding additional banks to the facility or obtaining the agreement of existing banks to increase their commitments. The interest rate on advances under the facility will generally be LIBOR plus a spread (currently 1.05%) and the Company pays an annual facility fee (currently 15 basis points). Both the spread and the facility fee are dependent on the credit rating of the Company’s long-term debt. As of July 31, 2014, there was available borrowings of $2.34 billion (net of $34.8 million which was restricted/dedicated to support letters of credit and net of $126.0 million outstanding) on the revolving credit facility. This facility may, among other potential uses, be used to fund property acquisitions, costs for certain properties under development and short-term liquidity requirements.

See Note 14 in the Notes to Consolidated Financial Statements for discussion of the events which occurred subsequent to June 30, 2014.

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Capitalization of Fixed Assets and Improvements to Real Estate

Our policy with respect to capital expenditures is generally to capitalize expenditures that improve the value of the property or extend the useful life of the component asset of the property. We track improvements to real estate in two major categories and several subcategories:

▪ Replacements (inside the apartment unit). These include:

▪ flooring such as carpets, hardwood, vinyl or tile;

▪ appliances;

▪ mechanical equipment such as individual furnace/air units, hot water heaters, etc;

▪ furniture and fixtures such as kitchen/bath cabinets, light fixtures, ceiling fans, sinks, tubs, toilets, mirrors, countertops, etc; and

▪ blinds.

All replacements are depreciated over a five to ten-year estimated useful life. We expense as incurred all make-ready maintenance and turnover costs such as cleaning, interior painting of individual apartment units and the repair of any replacement item noted above.

▪ Building improvements (outside the apartment unit). These include:

▪ roof replacement and major repairs;

▪ paving or major resurfacing of parking lots, curbs and sidewalks;

▪ amenities and common areas such as pools, exterior sports and playground equipment, lobbies, clubhouses, laundry rooms, alarm and security systems and offices;

▪ major building mechanical equipment systems;

▪ interior and exterior structural repair and exterior painting and siding;

▪ major landscaping and grounds improvement; and

▪ vehicles and office and maintenance equipment.

All building improvements are depreciated over a five to fifteen-year estimated useful life. We capitalize building improvements and upgrades only if the item: (i) exceeds $2,500 (selected projects must exceed $10,000); (ii) extends the useful life of the asset; and (iii) improves the value of the asset.

For the six months ended June 30, 2014, our actual improvements to real estate totaled approximately $76.9 million. This includes the following (amounts in thousands except for apartment unit and per apartment unit amounts):

Capital Expenditures to Real Estate
For the Six Months Ended June 30, 2014
	Total Apartment Units (1)	Replacements (2)		Avg. Per Apartment Unit		Building Improvements		Avg. Per Apartment Unit		Total		Avg. Per Apartment Unit
Same Store Properties (3)	100,648	$	34,742	$	345	$	39,656	$	394	$	74,398	$	739
Non-Same Store Properties (4)	4,167	112		34		2,312		698		2,424		732
Other (5)	—	86				4				90
Total	104,815	$	34,940			$	41,972			$	76,912

(1) Total Apartment Units – Excludes 1,669 unconsolidated apartment units and 5,007 military housing apartment units for which repairs and maintenance expenses and capital expenditures to real estate are self-funded and do not consolidate into the Company's results.

(2) Replacements – Includes new expenditures inside the apartment units such as appliances, mechanical equipment, fixtures and flooring, including carpeting. Replacements for same store properties also include $19.6 million spent during the six months ended June 30, 2014 on apartment unit renovations/rehabs (primarily kitchens and baths) on 2,253 same store apartment units (equating to about $8,700 per apartment unit rehabbed) designed to reposition these assets for higher rental levels in their respective markets.

(3) Same Store Properties – Primarily includes all properties acquired or completed and stabilized prior to January 1, 2013, less properties subsequently sold. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(4) Non-Same Store Properties – Primarily includes all properties acquired during 2013 and 2014, plus any properties in lease-up and not stabilized as of January 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company. Per apartment unit amounts are based on a weighted average of 3,313 apartment units.

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(5) Other – Primarily includes expenditures for properties sold.

For 2014, the Company estimates that it will spend approximately $1,700 per apartment unit of capital expenditures, inclusive of apartment unit renovation/rehab costs, or $1,250 per apartment unit excluding apartment unit renovation/rehab costs. In 2014, the Company expects to spend approximately $45.0 million for all unit renovation/rehab costs (primarily on same store properties) at a weighted average cost of $8,500 per apartment unit rehabbed. These anticipated amounts represent an increase in the cost per unit over 2013, which is primarily driven by increases in building improvement costs (i.e. roofs, mechanical systems and siding) for the Archstone assets as well as certain large building improvement projects the Company had planned to complete in 2013 but will not finalize until 2014. The Company is accelerating its rehab/renovation efforts in 2014 with plans to continue to create value from our properties by doing those rehabs that meet our investment parameters. The above assumptions are based on current expectations and are forward-looking.

During the six months ended June 30, 2014, the Company’s total non-real estate capital additions, such as computer software, computer equipment, and furniture and fixtures and leasehold improvements to the Company’s property management offices and its corporate offices, were approximately $1.8 million. The Company expects to fund approximately $0.9 million in total additions to non-real estate property for the remainder of 2014. The above assumption is based on current expectations and is forward-looking.

Improvements to real estate and additions to non-real estate property are generally funded from net cash provided by operating activities and from investment cash flow.

Derivative Instruments

In the normal course of business, the Company is exposed to the effect of interest rate changes. The Company seeks to manage these risks by following established risk management policies and procedures including the use of derivatives to hedge interest rate risk on debt instruments. The Company may also use derivatives to manage its exposure to foreign exchange rates or manage commodity prices in the daily operations of the business.

The Company has a policy of only entering into contracts with major financial institutions based upon their credit ratings and other factors. When viewed in conjunction with the underlying and offsetting exposure that the derivatives are designed to hedge, the Company has not sustained a material loss from these instruments nor does it anticipate any material adverse effect on its net income or financial position in the future from the use of derivatives it currently has in place.

See Note 9 in the Notes to Consolidated Financial Statements for additional discussion of derivative instruments at June 30, 2014.

Other

Total distributions paid in July 2014 amounted to $187.9 million (excluding distributions on Partially Owned Properties), which included certain distributions declared during the second quarter ended June 30, 2014.

Off-Balance Sheet Arrangements and Contractual Obligations

Archstone Acquisition  

On February 27, 2013, in conjunction with the Archstone Acquisition, the Company acquired unconsolidated interests in several joint ventures. The Company does not believe that these investments have a materially different impact upon its liquidity, cash flows, capital resources, credit or market risk than its other consolidated operating and/or development activities. Details of these interests follow by project:

San Norterra – This venture developed certain land parcels into a 388 unit apartment building located in Phoenix, Arizona and was completed and stabilized during the quarter ended June 30, 2014. The Company has an 85% equity interest with an initial basis of $16.9 million. Total project costs were approximately $52.8 million and construction was partially funded with a construction loan that was guaranteed by the partner and non-recourse to the Company. The loanhas a maximum debt commitment of $34.8 million and a current unconsolidated outstanding balance of $33.0 million; the loan bears interest at LIBOR plus 2.00% and matures January 6, 2015. The partner is the managing member and developed the project. The Company does not have substantive kick-out or participating rights. As a result, the entity is unconsolidated and recorded using the equity method of accounting.

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Waterton Tenside – This venture was formed to develop and operate a 336 unit apartment property located in Atlanta, Georgia. The Company has a 20% equity interest with an initial basis of $5.1 million. The partner is the managing member and developed the project. The project is encumbered by a non-recourse mortgage loan that has a current outstanding balance of $30.3 million, bears interest at 3.66% and matures December 1, 2018. The Company does not have substantive kick-out or participating rights. As a result, the entity is unconsolidated and recorded using the equity method of accounting.

Parc on Powell (formerly known as 1333 Powell) – This venture is currently developing certain land parcels into a 176 unit apartment building located in Emeryville, California. The Company has a 5% equity interest with an initial obligation of approximately $2.1 million. Total project costs are expected to be approximately $75.0 million and construction is being partially funded with a construction loan. The loan has a maximum debt commitment of $39.5 million and a current unconsolidated outstanding balance of $22.0 million; the loan bears interest at LIBOR plus 2.25% and matures August 14, 2015. The Company has given a repayment guaranty on the construction loan of 50% of the outstanding balance, up to a maximum of $19.7 million, and has given certain construction cost overrun guarantees. The partner is the managing member. The Company does not have substantive kick-out or participating rights. As a result, the entity is unconsolidated and recorded using the equity method of accounting.

On February 27, 2013, in connection with the Archstone Acquisition, subsidiaries of the Company and AVB entered into three limited liability company agreements (collectively, the “Residual JV”). The Residual JV owns certain non-core Archstone assets, such as interests in a six property portfolio of apartment buildings and succeeded to certain residual Archstone liabilities, such as liability for various employment-related matters. The Residual JV is owned 60% by the Company and 40% by AVB and the Company's initial investment was $147.6 million. The Residual JV is managed by a Management Committee consisting of two members from each of the Company and AVB. Both partners have equal participation in the Management Committee and all significant participating rights are shared by both partners. As a result, the Residual JV is unconsolidated and recorded using the equity method of accounting.

During the six months ended June 30, 2014, the Company closed on the sale of its unconsolidated interest in the German portfolio fund and the German management company, representing the sale of the majority of the remaining German real estate assets that were acquired by the Residual JV as part of the Archstone Acquisition. The Company's pro rata share of the proceeds/distributions that have been repatriated to the Residual JV and received by the Company as a result of the German dispositions was approximately $64.7 million during the six months ended June 30, 2014 and $83.6 million cumulatively since the closing of the Archstone Acquisition.

On February 27, 2013, in connection with the Archstone Acquisition, a subsidiary of the Company and AVB entered into a limited liability company agreement (the “Legacy JV”), through which they assumed obligations of Archstone in the form of preferred interests, some of which are governed by tax protection arrangements. During the year ended December 31, 2013, the Company purchased with AVB $65.0 million (of which the Company's 60% share was $39.0 million) of the preferred interests assumed by Legacy JV. At June 30, 2014, the remaining preferred interests have an aggregate liquidation value of $76.8 million, our share of which is included in other liabilities in the accompanying consolidated balance sheets. Obligations of the Legacy JV are borne 60% by the Company and 40% by AVB. The Legacy JV is managed by a Management Committee consisting of two members from each of the Company and AVB. Both partners have equal participation in the Management Committee and all significant participating rights are shared by both partners. As a result, the Legacy JV is unconsolidated and recorded using the equity method of accounting.

Other 

The Company admitted an 80% institutional partner to two separate entities/transactions (Nexus Sawgrass in December 2010 and Domain in August 2011), each owning a developable land parcel, in exchange for $40.1 million in cash and retained a 20% equity interest in both of these entities. These projects are now unconsolidated. Details of these projects follow:

• Nexus Sawgrass – This development project is substantially complete. Total project costs are expected to be approximately $79.0 million and construction was predominantly funded with a long-term, non-recourse secured loan from the partner. The mortgage loan has a maximum debt commitment of $48.7 million and a current unconsolidated outstanding balance of $48.6 million; the loan bears interest at 5.60% and matures January 1, 2021.

• Domain – This development project is substantially complete. Total project costs are expected to be approximately $155.8 million and construction is predominantly funded with a long-term, non-recourse secured loan from the partner. The mortgage loan has a maximum debt commitment of $98.6 million and a current unconsolidated outstanding balance of $96.4 million; the loan bears interest at 5.75% and matures January 1, 2022.

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While the Company is the managing member of both of the joint ventures, was responsible for constructing both of the projects and has given certain construction cost overrun guarantees, the joint venture partner has significant participating rights and has active involvement in and oversight of the ongoing projects. The Company currently has no further funding obligations related to these projects. The Company's strategy with respect to these ventures was to reduce its financial risk related to the development of the properties. However, management does not believe that these investments have a materially different impact upon the Company's liquidity, cash flows, capital resources, credit or market risk than its other consolidated development activities.

As of June 30, 2014, the Company has 12 consolidated projects (including Prism at Park Avenue South in New York City which the Company is jointly developing with Toll Brothers – see Note 12 in the Notes to Consolidated Financial Statements for further discussion) totaling 3,871 apartment units and one unconsolidated project totaling 176 apartment units in various stages of development with estimated completion dates ranging through September 30, 2016, as well as other completed development projects that are in various stages of lease up or are stabilized. The development agreements currently in place are discussed in detail in Note 12 of the Company’s Consolidated Financial Statements.

See also Notes 2 and 6 in the Notes to Consolidated Financial Statements for additional discussion regarding the Company’s investments in partially owned entities.

The Company’s contractual obligations for the next five years and thereafter have not changed materially from the amounts and disclosures included in the Company’s annual report on Form 10-K. See the updated debt maturity schedule included in Liquidity and Capital Resources for further discussion.

Critical Accounting Policies and Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to use judgment in the application of accounting policies, including making estimates and assumptions. If our judgment or interpretation of the facts and circumstances relating to various transactions had been different or different assumptions were made, it is possible that different accounting policies would have been applied, resulting in different financial results or different presentation of our financial statements.

The Company has identified five significant accounting policies as critical accounting policies. These critical accounting policies are those that have the most impact on the reporting of our financial condition and those requiring significant judgments and estimates. With respect to these critical accounting policies, management believes that the application of judgments and estimates is consistently applied and produces financial information that fairly presents the results of operations for all periods presented. The five critical accounting policies are:

Acquisition of Investment Properties

The Company allocates the purchase price of properties to net tangible and identified intangible assets acquired based on their fair values. In making estimates of fair values for purposes of allocating purchase price, the Company utilizes a number of sources, including independent appraisals that may be obtained in connection with the acquisition or financing of the respective property, our own analysis of recently acquired and existing comparable properties in our portfolio and other market data. The Company also considers information obtained about each property as a result of its pre-acquisition due diligence, marketing and leasing activities in estimating the fair value of the tangible and intangible assets acquired.

Impairment of Long-Lived Assets

The Company periodically evaluates its long-lived assets, including its investments in real estate, for indicators of impairment. The judgments regarding the existence of impairment indicators are based on factors such as operational performance, market conditions and legal and environmental concerns, as well as the Company’s ability to hold and its intent with regard to each asset. Future events could occur which would cause the Company to conclude that impairment indicators exist and an impairment loss is warranted.

Depreciation of Investment in Real Estate

The Company depreciates the building component of its investment in real estate over a 30-year estimated useful life, building improvements over a 5-year to 15-year estimated useful life and both the furniture, fixtures and equipment and replacement components over a 5-year to 10-year estimated useful life, all of which are judgmental determinations.

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Cost Capitalization

See the Capitalization of Fixed Assets and Improvements to Real Estate section for a discussion of the Company’s policy with respect to capitalization vs. expensing of fixed asset/repair and maintenance costs. In addition, the Company capitalizes an allocation of the payroll and associated costs of employees directly responsible for and who spend their time on the execution and supervision of major capital and/or renovation projects. These costs are reflected on the balance sheets as increases to depreciable property.

For all development projects, the Company uses its professional judgment in determining whether such costs meet the criteria for capitalization or must be expensed as incurred. The Company capitalizes interest, real estate taxes and insurance and payroll and associated costs for those individuals directly responsible for and who spend their time on development activities, with capitalization ceasing no later than 90 days following issuance of the certificate of occupancy. These costs are reflected on the balance sheets as construction-in-progress for each specific property. The Company expenses as incurred all payroll costs of on-site employees working directly at our properties, except as noted above on our development properties prior to certificate of occupancy issuance and on specific major renovations at selected properties when additional incremental employees are hired.

During the six months ended June 30, 2014 and 2013, the Company capitalized $10.3 million and $8.4 million, respectively, of payroll and associated costs of employees directly responsible for and who spend their time on the execution and supervision of development activities as well as major capital and/or renovation projects.

Fair Value of Financial Instruments, Including Derivative Instruments

The valuation of financial instruments requires the Company to make estimates and judgments that affect the fair value of the instruments. The Company, where possible, bases the fair values of its financial instruments, including its derivative instruments, on listed market prices and third party quotes. Where these are not available, the Company bases its estimates on current instruments with similar terms and maturities or on other factors relevant to the financial instruments.

Funds From Operations and Normalized Funds From Operations

For the six months ended June 30, 2014, Funds From Operations ("FFO") available to Common Shares and Units / Units and Normalized FFO available to Common Shares and Units / Units increased $202.7 million, or 57.3%, and $68.1 million, or 13.8%, respectively, as compared to the six months ended June 30, 2013.    

For the quarter ended June 30, 2014, FFO available to Common Shares and Units / Units and Normalized FFO available to Common Shares and Units / Units increased $16.2 million, or 5.9% and $28.6 million, or 10.7%, respectively, as compared to the quarter ended June 30, 2013.

The following is the Company’s and the Operating Partnership’s reconciliation of net income to FFO available to Common Shares and Units / Units and Normalized FFO available to Common Shares and Units / Units for the six months and quarters ended June 30, 2014 and 2013:

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Funds From Operations and Normalized Funds From Operations
(Amounts in thousands)
	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Net income	$	200,452		$	1,397,766		$	117,720		$	336,732
Net (income) loss attributable to Noncontrolling Interests – Partially Owned    Properties	(1,092		)	790			(588		)	815
Preferred distributions	(2,072		)	(2,072		)	(1,036		)	(1,036		)
Net income available to Common Shares and Units / Units	197,288			1,396,484			116,096			336,511
Adjustments:
Depreciation	375,303			519,526			190,136			323,304
Depreciation – Non-real estate additions	(2,348		)	(2,473		)	(1,160		)	(1,257		)
Depreciation – Partially Owned Properties	(2,140		)	(3,550		)	(1,072		)	(2,275		)
Depreciation – Unconsolidated Properties	3,436			1,042			1,833			782
Net (gain) on sales of real estate properties	(14,903		)	—			(14,903		)	—
Discontinued operations:
Depreciation	—			30,962			—			7,146
Net (gain) on sales of discontinued operations	(224		)	(1,588,874		)	(153		)	(389,952		)
Net incremental gain on sales of condominium units	—			7			—			7
Gain on sale of Equity Corporate Housing (ECH)	—			601			—			351
FFO available to Common Shares and Units / Units (1) (3) (4)	556,412			353,725			290,777			274,617
Adjustments:
Asset impairment and valuation allowances	—			—			—			—
Property acquisition costs and write-off of pursuit costs	7,877			76,116			7,403			8,448
Debt extinguishment (gains) losses, including prepayment penalties,
preferred share/preference unit redemptions and non-cash convertible
debt discounts	491			78,820			491			(823		)
(Gains) losses on sales of non-operating assets, net of income and other tax    expense (benefit)	(851		)	(15,224		)	(860		)	(14,974		)
Other miscellaneous non-comparable items	(2,390		)	—			(1,927		)	—
Normalized FFO available to Common Shares and Units / Units (2) (3) (4)	$	561,539		$	493,437		$	295,884		$	267,268
FFO (1) (3)	$	558,484		$	355,797		$	291,813		$	275,653
Preferred/preference distributions	(2,072		)	(2,072		)	(1,036		)	(1,036		)
FFO available to Common Shares and Units / Units (1) (3) (4)	$	556,412		$	353,725		$	290,777		$	274,617
Normalized FFO (2) (3)	$	563,611		$	495,509		$	296,920		$	268,304
Preferred/preference distributions	(2,072		)	(2,072		)	(1,036		)	(1,036		)
Normalized FFO available to Common Shares and Units / Units (2) (3) (4)	$	561,539		$	493,437		$	295,884		$	267,268

(1) The National Association of Real Estate Investment Trusts (“NAREIT”) defines funds from operations (“FFO”) (April 2002 White Paper) as net income (computed in accordance with accounting principles generally accepted in the United States (“GAAP”)), excluding gains (or losses) from sales and impairment write-downs of depreciable operating properties, plus depreciation and amortization, and after adjustments for unconsolidated partnerships and joint ventures. Adjustments for unconsolidated partnerships and joint ventures will be calculated to reflect funds from operations on the same basis. The April 2002 White Paper states that gain or loss on sales of property is excluded from FFO for previously depreciated operating properties only. Once the Company commences the conversion of apartment units to condominiums, it simultaneously discontinues depreciation of such property.

(2) Normalized funds from operations (“Normalized FFO”) begins with FFO and excludes:

▪ the impact of any expenses relating to non-operating asset impairment and valuation allowances;

▪ property acquisition and other transaction costs related to mergers and acquisitions and pursuit cost write-offs;

▪ gains and losses from early debt extinguishment, including prepayment penalties, preferred share/preference unit redemptions and the cost related to the implied option value of non-cash convertible debt discounts;

▪ gains and losses on the sales of non-operating assets, including gains and losses from land parcel and condominium sales, net of the effect of income tax benefits or expenses; and

▪ other miscellaneous non-comparable items.

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(3) The Company believes that FFO and FFO available to Common Shares and Units / Units are helpful to investors as supplemental measures of the operating performance of a real estate company, because they are recognized measures of performance by the real estate industry and by excluding gains or losses related to dispositions of depreciable property and excluding real estate depreciation (which can vary among owners of identical assets in similar condition based on historical cost accounting and useful life estimates), FFO and FFO available to Common Shares and Units / Units can help compare the operating performance of a company’s real estate between periods or as compared to different companies. The Company also believes that Normalized FFO and Normalized FFO available to Common Shares and Units / Units are helpful to investors as supplemental measures of the operating performance of a real estate company because they allow investors to compare the Company’s operating performance to its performance in prior reporting periods and to the operating performance of other real estate companies without the effect of items that by their nature are not comparable from period to period and tend to obscure the Company’s actual operating results. FFO, FFO available to Common Shares and Units / Units, Normalized FFO and Normalized FFO available to Common Shares and Units / Units do not represent net income, net income available to Common Shares / Units or net cash flows from operating activities in accordance with GAAP. Therefore, FFO, FFO available to Common Shares and Units / Units, Normalized FFO and Normalized FFO available to Common Shares and Units / Units should not be exclusively considered as alternatives to net income, net income available to Common Shares / Units or net cash flows from operating activities as determined by GAAP or as a measure of liquidity. The Company’s calculation of FFO, FFO available to Common Shares and Units / Units, Normalized FFO and Normalized FFO available to Common Shares and Units / Units may differ from other real estate companies due to, among other items, variations in cost capitalization policies for capital expenditures and, accordingly, may not be comparable to such other real estate companies.

(4) FFO available to Common Shares and Units / Units and Normalized FFO available to Common Shares and Units / Units are calculated on a basis consistent with net income available to Common Shares / Units and reflects adjustments to net income for preferred distributions and premiums on redemption of preferred shares/preference units in accordance with accounting principles generally accepted in the United States. The equity positions of various individuals and entities that contributed their properties to the Operating Partnership in exchange for OP Units are collectively referred to as the “Noncontrolling Interests – Operating Partnership”. Subject to certain restrictions, the Noncontrolling Interests – Operating Partnership may exchange their OP Units for Common Shares on a one-for-one basis.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

The Company’s and the Operating Partnership's market risk has not changed materially from the amounts and information reported in Part II, Item 7A. Quantitative and Qualitative Disclosures About Market Risk, to the Company’s and the Operating Partnership's Annual Report on Form 10-K for the year ended December 31, 2013. See the Current Environment section of Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations relating to market risk and the current economic environment. See also Note 9 in the Notes to Consolidated Financial Statements for additional discussion of derivative and other fair value instruments.

Item 4. Controls and Procedures

Equity Residential

(a) Evaluation of Disclosure Controls and Procedures:

Effective as of June 30, 2014, the Company carried out an evaluation, under the supervision and with the participation of the Company’s management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures pursuant to Exchange Act Rules 13a-15 and 15d-15. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the disclosure controls and procedures are effective to ensure that information required to be disclosed by the Company in its Exchange Act filings is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

(b) Changes in Internal Control over Financial Reporting:

There were no changes to the internal control over financial reporting of the Company identified in connection with the Company’s evaluation referred to in Item 4(a) above that occurred during the second quarter of 2014 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

ERP Operating Limited Partnership

(a) Evaluation of Disclosure Controls and Procedures:

Effective as of June 30, 2014, the Operating Partnership carried out an evaluation, under the supervision and with the participation of the Operating Partnership’s management, including the Chief Executive Officer and Chief Financial Officer of EQR, of the effectiveness of the Operating Partnership’s disclosure controls and procedures pursuant to Exchange Act Rules 13a-15 and 15d-15. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the disclosure controls and procedures are effective to ensure that information required to be disclosed by the Operating Partnership in its Exchange Act filings is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

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(b) Changes in Internal Control over Financial Reporting:

There were no changes to the internal control over financial reporting of the Operating Partnership identified in connection with the Operating Partnership’s evaluation referred to in Item 4(a) above that occurred during the second quarter of 2014 that have materially affected, or are reasonably likely to materially affect, the Operating Partnership’s internal control over financial reporting.

71

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

The Company and the Operating Partnership do not believe that there have been any material developments in the legal proceedings that were discussed in Part I, Item 3 of the Company’s and the Operating Partnership's Annual Report on Form 10-K for the year ended December 31, 2013.

Item 1A. Risk Factors

There have been no material changes to the risk factors that were discussed in Part I, Item 1A of the Company’s and the Operating Partnership's Annual Report on Form 10-K for the year ended December 31, 2013.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

(a) Unregistered Common Shares Issued in the Quarter Ended June 30, 2014 - Equity Residential

During the quarter ended June 30, 2014, EQR issued 38,493 Common Shares in exchange for 38,493 OP Units held by various limited partners of the Operating Partnership. OP Units are generally exchangeable into Common Shares on a one-for-one basis or, at the option of the Operating Partnership, the cash equivalent thereof, at any time one year after the date of issuance. These shares were either registered under the Securities Act of 1933, as amended (the “Securities Act”), or issued in reliance on an exemption from registration under Section 4(2) of the Securities Act and the rules and regulations promulgated thereunder, as these were transactions by an issuer not involving a public offering. In light of the manner of the sale and information obtained by EQR from the limited partners in connection with these transactions, EQR believes it may rely on these exemptions.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

Item 6. Exhibits – See the Exhibit Index

72

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		EQUITY RESIDENTIAL
Date:	August 7, 2014	By:	/s/ Mark J. Parrell
			Mark J. Parrell
			Executive Vice President and Chief Financial Officer
			(Principal Financial Officer)
Date:	August 7, 2014	By:	/s/ Ian S. Kaufman
			Ian S. Kaufman
			Senior Vice President and Chief Accounting Officer
			(Principal Accounting Officer)
		ERP OPERATING LIMITED PARTNERSHIP BY: EQUITY RESIDENTIAL ITS GENERAL PARTNER
Date:	August 7, 2014	By:	/s/ Mark J. Parrell
			Mark J. Parrell
			Executive Vice President and Chief Financial Officer
			(Principal Financial Officer)
Date:	August 7, 2014	By:	/s/ Ian S. Kaufman
			Ian S. Kaufman
			Senior Vice President and Chief Accounting Officer
			(Principal Accounting Officer)

EXHIBIT INDEX

The exhibits listed below are filed as part of this report. References to exhibits or other filings under the caption “Location” indicate that the exhibit or other filing has been filed, that the indexed exhibit and the exhibit referred to are the same and that the exhibit referred to is incorporated by reference. The Commission file numbers for our Exchange Act filings referenced below are 1-12252 (Equity Residential) and 0-24920 (ERP Operating Limited Partnership).

Exhibit	Description	Location
4.1	Form of 2.375% Note due July 1, 2019.	Included as Exhibit 4.1 to ERP Operating Limited Partnership's Form 8-K dated June 16, 2014, filed on June 18, 2014.
4.2	Form of 4.500% Note due July 1, 2044.	Included as Exhibit 4.2 to ERP Operating Limited Partnership's Form 8-K dated June 16, 2014, filed on June 18, 2014.
12	Computation of Ratio of Earnings to Combined Fixed Charges.	Attached herein.
31.1	Equity Residential – Certification of David J. Neithercut, Chief Executive Officer.	Attached herein.
31.2	Equity Residential – Certification of Mark J. Parrell, Chief Financial Officer.	Attached herein.
31.3	ERP Operating Limited Partnership – Certification of David J. Neithercut, Chief Executive Officer of Registrant’s General Partner.	Attached herein.
31.4	ERP Operating Limited Partnership – Certification of Mark J. Parrell, Chief Financial Officer of Registrant’s General Partner.	Attached herein.
32.1	Equity Residential – Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of David J. Neithercut, Chief Executive Officer of the Company.	Attached herein.
32.2	Equity Residential – Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of Mark J. Parrell, Chief Financial Officer of the Company.	Attached herein.
32.3	ERP Operating Limited Partnership – Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of David J. Neithercut, Chief Executive Officer of Registrant’s General Partner.	Attached herein.
32.4	ERP Operating Limited Partnership – Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of Mark J. Parrell, Chief Financial Officer of Registrant’s General Partner.	Attached herein.
101	XBRL (Extensible Business Reporting Language). The following materials from Equity Residential’s and ERP Operating Limited Partnership’s Quarterly Report on Form 10-Q for the period ended June 30, 2014, formatted in XBRL: (i) consolidated balance sheets, (ii) consolidated statements of operations and comprehensive income, (iii) consolidated statements of cash flows, (iv) consolidated statement of changes in equity (Equity Residential), (v) consolidated statement of changes in capital (ERP Operating Limited Partnership) and (vi) notes to consolidated financial statements.	Attached herein.

EX-12

Exhibit 12

EQUITY RESIDENTIAL ERP OPERATING LIMITED PARTNERSHIP  Computation of Ratio of Earnings to Combined Fixed Charges ($ in thousands)
	Six Months Ended June 30,						Year Ended December 31,
	2014			2013			2013			2012			2011			2010			2009
Income (loss) from continuing operations	$	183,987		$	(223,850	)	$	(168,174	)	$	160,298		$	(72,941	)	$	(204,152	)	$	(185,089	)
Interest expense incurred, net	228,973			317,417			586,854			455,236			460,172			455,692			481,849
Amortization of deferred financing costs	5,926			11,301			22,197			21,295			16,616			9,412			11,870
Earnings before combined fixed charges and preferred distributions	418,886			104,868			440,877			636,829			403,847			260,952			308,630
Preferred Share/Preference Unit distributions	(2,072		)	(2,072		)	(4,145		)	(10,355		)	(13,865		)	(14,368		)	(14,479		)
Premium on redemption of Preferred Shares/Preference Units	—			—			—			(5,152		)	—			—			—
Preference Interest and Junior Preference Unit distributions	—			—			—			—			—			—			(9		)
Earnings before combined fixed charges	$	416,814		$	102,796		$	436,732		$	621,322		$	389,982		$	246,584		$	294,142
Interest expense incurred, net	$	228,973		$	317,417		$	586,854		$	455,236		$	460,172		$	455,692		$	481,849
Amortization of deferred financing costs	5,926			11,301			22,197			21,295			16,616			9,412			11,870
Interest capitalized for real estate and unconsolidated entities under development	25,037			20,006			47,321			22,509			9,108			13,008			34,859
Amortization of deferred financing costs for real estate under development	—			1			152			—			—			2,768			3,585
Total combined fixed charges	259,936			348,725			656,524			499,040			485,896			480,880			532,163
Preferred Share/Preference Unit distributions	2,072			2,072			4,145			10,355			13,865			14,368			14,479
Premium on redemption of Preferred Shares/Preference Units	—			—			—			5,152			—			—			—
Preference Interest and Junior Preference Unit distributions	—			—			—			—			—			—			9
Total combined fixed charges and preferred distributions	$	262,008		$	350,797		$	660,669		$	514,547		$	499,761		$	495,248		$	546,651
Ratio of earnings before combined fixed charges to total combined fixed      charges (1)	1.60			—			—			1.25			—			—			—
Ratio of earnings before combined fixed charges and preferred distributions to      total combined fixed charges and preferred distributions (1)	1.60			—			—			1.24			—			—			—

(1) For the six months ended June 30, 2013, the coverage deficiency approximated $245.9 million. For the years ended December 31, 2013, 2011, 2010 and 2009, the coverage deficiencies approximated $219.8 million, $95.9 million, $234.3 million and $238.0 million, respectively. All 2013 and prior year ratios have been reduced due to the disposition of properties which resulted in the inclusion of those properties in discontinued operations. The ratios have been further reduced due to non-cash depreciation expense and impairment charges and premiums on the redemption of Preferred Shares/Preference Units. The Company was in compliance with its unsecured public debt covenants for all periods presented.

EX-31.1

Exhibit 31.1

Equity Residential

CERTIFICATIONS

I, David J. Neithercut, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Equity Residential;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: August 7, 2014

/s/ David J. Neithercut

David J. Neithercut

Chief Executive Officer

EX-31.2

Exhibit 31.2

Equity Residential

CERTIFICATIONS

I, Mark J. Parrell, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Equity Residential;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: August 7, 2014

/s/ Mark J. Parrell

     Mark J. Parrell

     Chief Financial Officer

EX-31.3

Exhibit 31.3

ERP Operating Limited Partnership

CERTIFICATIONS

I, David J. Neithercut, certify that:

1. I have reviewed this quarterly report on Form 10-Q of ERP Operating Limited Partnership;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 7, 2014

/s/ David J. Neithercut

     David J. Neithercut

     Chief Executive Officer of

     Registrant's General Partner

EX-31.4

Exhibit 31.4

ERP Operating Limited Partnership

CERTIFICATIONS

I, Mark J. Parrell, certify that:

1. I have reviewed this quarterly report on Form 10-Q of ERP Operating Limited Partnership;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 7, 2014

/s/ Mark J. Parrell

     Mark J. Parrell

     Chief Financial Officer of

     Registrant's General Partner

EX-32.1

Exhibit 32.1

Equity Residential

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

          In connection with the Quarterly Report of Equity Residential (the “Company”) on Form 10-Q for the period ending June 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David J. Neithercut, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ David J. Neithercut

David J. Neithercut

Chief Executive Officer

August 7, 2014

EX-32.2

Exhibit 32.2

Equity Residential

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

          In connection with the Quarterly Report of Equity Residential (the “Company”) on Form 10-Q for the period ending June 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Mark J. Parrell, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Mark J. Parrell

Mark J. Parrell

Chief Financial Officer

August 7, 2014

EX-32.3

Exhibit 32.3

ERP Operating Limited Partnership

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of ERP Operating Limited Partnership (the "Operating Partnership”) on Form 10-Q for the period ending June 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David J. Neithercut, Chief Executive Officer of Equity Residential, general partner of the Operating Partnership, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.

/s/ David J. Neithercut

David J. Neithercut

Chief Executive Officer

of Registrant’s General Partner

August 7, 2014

EX-32.4

Exhibit 32.4

ERP Operating Limited Partnership

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of ERP Operating Limited Partnership (the "Operating Partnership”) on Form 10-Q for the period ending June 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Mark J. Parrell, Chief Financial Officer of Equity Residential, general partner of the Operating Partnership, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.

/s/ Mark J. Parrell

Mark J. Parrell

Chief Financial Officer

of Registrant’s General Partner

August 7, 2014

XML

Summary of Significant Accounting Policies (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Number of Real Estate Properties	397
Number of Units in Real Estate Property	111,491
Noncontrolling Interests - Partially Owned Properties	$ 125,843,000	$ 126,583,000
Noncontrolling Interest Balance Limited Life Partnerships	(10,200,000)
Noncontrolling Interests Settlement Value	$ 53,200,000
Consolidated Properties [Member]
Number of Real Estate Properties	19
Number of Units in Real Estate Property	3,752
Limited Life Partnership Properties [Member]
Number of Real Estate Properties	6

XML

Derivative and Other Fair Value Instruments (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 1,452	$ 18,710
Other Assets, Fair Value Disclosure	97,543	83,845
Assets, Fair Value Disclosure	98,995	102,555
Derivative liability, fair value	2,346
Other Liabilities, Fair Value Disclosure	97,543	83,845
Liabilities, Fair Value Disclosure	99,889	83,845
Redeemable Noncontrolling Interest Operating Partnership Fair Value Disclosure	440,050	363,144
Fair Value, Inputs, Level 1 [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	0	0
Other Assets, Fair Value Disclosure	97,543	83,845
Assets, Fair Value Disclosure	97,543	83,845
Derivative liability, fair value	0
Other Liabilities, Fair Value Disclosure	97,543	83,845
Liabilities, Fair Value Disclosure	97,543	83,845
Redeemable Noncontrolling Interest Operating Partnership Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	1,452	18,710
Other Assets, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	1,452	18,710
Derivative liability, fair value	2,346
Other Liabilities, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	2,346	0
Redeemable Noncontrolling Interest Operating Partnership Fair Value Disclosure	440,050	363,144
Fair Value, Inputs, Level 3 [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	0	0
Other Assets, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	0	0
Derivative liability, fair value	0
Other Liabilities, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	0	0
Redeemable Noncontrolling Interest Operating Partnership Fair Value Disclosure	$ 0	$ 0

XML

Investments in Partially Owned Entities (Details) (USD $)	3 Months Ended		6 Months Ended				6 Months Ended									16 Months Ended					6 Months Ended				6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014 San Norterra [Domain]	Jun. 30, 2014 Consolidated Development Projects Held for and or Under Development [Member]	Jun. 30, 2014 Consolidated Operating [Domain]	Jun. 30, 2014 Consolidated Total [Domain]	Jun. 30, 2014 Unconsolidated Development Projects Held for and or Under Development [Domain]	Jun. 30, 2014 Unconsolidated Completed, Not Stabilized [Domain]	Jun. 30, 2014 Unconsolidated Operating [Domain]	Jun. 30, 2014 Unconsolidated Total [Domain]	Jun. 30, 2014 Parc on Powell (formerly 1333 Powell) [Domain]	Jun. 30, 2014 Archstone Transaction [Member]	Mar. 31, 2013 Archstone Transaction [Member]	Jun. 30, 2014 Residual JV [Domain]	Jun. 30, 2014 East Palmetto Park [Domain]	Jun. 30, 2014 Wisconsin Place [Domain]	Jun. 30, 2014 San Norterra [Domain]	Jun. 30, 2014 Waterton Tenside [Domain]	Jun. 30, 2014 Parc on Powell (formerly 1333 Powell) [Domain]	Jun. 30, 2014 Joint Venture Partner [Member]	Jun. 30, 2014 Company's Portion [Member]	Jun. 30, 2014 Nexus Sawgrass [Member]	Jun. 30, 2014 Domain [Member]	Jun. 30, 2014 London Interbank Offered Rate (LIBOR) [Member] San Norterra [Domain]	Jun. 30, 2014 London Interbank Offered Rate (LIBOR) [Member] Parc on Powell (formerly 1333 Powell) [Domain]
Investments In Partially Owned Entities (Textuals) [Abstract]
Liquidation Value Preferred Interests																$ 76,800,000
Business Acquisition, Percentage of Voting Interests Acquired																	60.00%		90.00%	75.00%
Joint Venture Partner Ownership Percentage	80.00%		80.00%													40.00%
Partially Owned Consolidated Units to be Developed																			377
Initial Basis of Real Estate, Consolidated																			20,200,000	198,500,000
Equity Method Investment, Ownership Percentage	20.00%		20.00%																		85.00%	20.00%	5.00%
Initial Basis of Real Estate, Unconsolidated																					16,900,000	5,100,000	2,100,000
Project Cost																					52,800,000		75,000,000			79,000,000	155,800,000
Maximum Debt Commitment																					34,800,000		39,500,000			48,700,000	98,600,000
Debt Instrument, Description of Variable Rate Basis							LIBOR plus 2.00%								LIBOR plus 2.25%
Debt Instrument, Basis Spread on Variable Rate			1.05%																									2.00%	2.25%
Debt Instrument, Maturity Date			May 01, 2061																		Jan. 06, 2015	Dec. 01, 2018	Aug. 14, 2015			Jan. 01, 2021	Jan. 01, 2022
Debt Instrument, Interest Rate, Stated Percentage																						3.66%				5.60%	5.75%
Partially Owned Unconsolidated Units To Be Developed																							176
Guarantor Obligations, Maximum Exposure															19,700,000								19,700,000
Proceeds From Distributions Received From Unconsolidated Subsidiaries			64,669,000	0												83,600,000
Preferred Interests			65,000,000																						39,000,000
Land purchase price																								57,900,000	76,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	265,400,000		265,400,000																					75,700,000	102,500,000
Investment in Joint Venture	327,900,000		327,900,000
Number of Joint Ventures	2		2
Partners Payments To Acquire Equity Method Investments			40,100,000
Partially Owned Property Balance Sheet Schedule
Number of Real Estate Properties	397		397					0	19	19	0	2	2	4
Number of Units in Real Estate Property	111,491		111,491					0	3,752	3,752	0	945	724	1,669						432	388	336
ASSETS
Real Estate Investment Property, at Cost	27,341,089,000		27,341,089,000		26,800,948,000			329,668,000	676,848,000	1,006,516,000	55,998,000	233,411,000	108,164,000	397,573,000
Real Estate Investment Property, Accumulated Depreciation	(5,170,438,000)		(5,170,438,000)		(4,807,709,000)			0	(183,571,000)	(183,571,000)	0	(6,693,000)	(7,136,000)	(13,829,000)
Investment in real estate, net	22,170,651,000		22,170,651,000		21,993,239,000			329,668,000	493,277,000	822,945,000	55,998,000	226,718,000	101,028,000	383,744,000
Cash and Cash Equivalents, at Carrying Value	76,132,000	152,564,000	76,132,000	152,564,000	53,534,000	612,590,000		4,488,000	14,125,000	18,613,000	454,000	2,830,000	1,582,000	4,866,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	142,318,000		142,318,000		178,526,000			0	53,209,000	53,209,000	0	0	0	0				147,600,000		56,500,000
Restricted Cash and Cash Equivalents	84,408,000		84,408,000		103,567,000			34,761,000	250,000	35,011,000	0	130,000	47,000	177,000
Deferred Finance Costs, Net	63,441,000		63,441,000		58,486,000			0	2,318,000	2,318,000	53,000	4,000	122,000	179,000
Other Assets	409,183,000		409,183,000		404,557,000			6,679,000	26,176,000	32,855,000	14,000	41,000	1,250,000	1,305,000
Total assets	22,991,402,000		22,991,402,000		22,834,545,000			375,596,000	589,355,000	964,951,000	56,519,000	229,723,000	104,029,000	390,271,000
LIABILITIES AND EQUITY
Secured Debt	5,158,091,000		5,158,091,000		5,174,166,000			0	360,305,000	360,305,000	21,982,000	145,016,000	63,305,000	230,303,000							33,000,000	30,300,000	22,000,000			48,600,000	96,400,000
Accounts Payable And Accrued Liabilities Current And Noncurrent Other Than Interest And Dividend Payable	168,225,000		168,225,000		118,791,000			12,313,000	1,730,000	14,043,000	5,095,000	955,000	350,000	6,400,000
Interest Payable	78,389,000		78,389,000		78,309,000			0	1,265,000	1,265,000	43,000	687,000	42,000	772,000
Other Liabilities	331,662,000		331,662,000		347,748,000			140,000	1,252,000	1,392,000	0	244,000	1,046,000	1,290,000
Security Deposit Liability	74,508,000		74,508,000		71,592,000			0	1,916,000	1,916,000	0	279,000	140,000	419,000
Total liabilities	11,922,733,000		11,922,733,000		11,626,205,000			12,453,000	366,468,000	378,921,000	27,120,000	147,181,000	64,883,000	239,184,000
Noncontrolling Interests Partially Owned Properties	125,843,000		125,843,000		126,583,000			117,677,000	8,166,000	125,843,000	27,858,000	70,428,000	23,434,000	121,720,000										117,400,000
Parent Equity Interest								245,466,000	214,721,000	460,187,000	1,541,000	12,114,000	15,712,000	29,367,000
Total Equity Interest								363,143,000	222,887,000	586,030,000	29,399,000	82,542,000	39,146,000	151,087,000
Total liabilities and equity	22,991,402,000		22,991,402,000		22,834,545,000			375,596,000	589,355,000	964,951,000	56,519,000	229,723,000	104,029,000	390,271,000
Partially Owned Property Income Statement Schedule
Operating revenue	652,568,000	617,217,000	1,286,010,000	1,121,939,000				0	43,110,000	43,110,000	0	7,958,000	5,060,000	13,018,000
Operating Expenses								154,000	12,825,000	12,979,000	132,000	3,287,000	1,856,000	5,275,000
Gross Profit								(154,000)	30,285,000	30,131,000	(132,000)	4,671,000	3,204,000	7,743,000
Depreciation	190,136,000	323,304,000	375,303,000	519,526,000				0	10,768,000	10,768,000	0	5,299,000	2,039,000	7,338,000
General and Administrative Expense	13,752,000	16,085,000	31,328,000	32,580,000				(3,000)	26,000	23,000	0	1,000	122,000	123,000
Operating Income	228,304,000	63,977,000	427,556,000	168,223,000				(151,000)	19,491,000	19,340,000	(132,000)	(629,000)	1,043,000	282,000
Interest and Other Income	2,032,000	432,000	2,637,000	752,000				0	3,000	3,000	0	0	0	0
Other Nonoperating Income (Expense)								(76,000)	(32,000)	(108,000)	0	0	0	0
Interest:
Interest Expense, Debt	115,924,000	122,950,000	228,973,000	317,417,000				0	(7,788,000)	(7,788,000)	0	(3,864,000)	(926,000)	(4,790,000)
Amortization of Financing Costs	(3,134,000)	(4,353,000)	(5,926,000)	(11,301,000)				0	(177,000)	(177,000)	0	0	(7,000)	(7,000)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain on sales of land parcels, discontinued operations and net gain on sales of real estate properties	109,745,000	(64,525,000)	193,104,000	(183,093,000)				(227,000)	11,497,000	11,270,000	(132,000)	(4,493,000)	110,000	(4,515,000)
Income and other tax (expense) benefit	(646,000)	(428,000)	(886,000)	(833,000)				0	(45,000)	(45,000)	0	(7,000)	0	(7,000)
(Loss) from investments in unconsolidated entities	(7,616,000)	(8,174,000)	(9,025,000)	(54,540,000)				0	(879,000)	(879,000)	0	0	0	0
Net income	$ 117,720,000	$ 336,732,000	$ 200,452,000	$ 1,397,766,000				$ (227,000)	$ 10,573,000	$ 10,346,000	$ (132,000)	$ (4,500,000)	$ 110,000	$ (4,522,000)

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Derivative and Other Fair Value Instruments (Details 3) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments	$ 1,452	$ (1,524)
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge	(1,452)	1,524
Effective Portion - Amount of Gain/ (Loss) Recognized in OCI on Derivative	(21,790)	12,337
Effective Portion - Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income	(8,335)	(12,098)
Ineffective Portion - Amount of Gain/ (Loss) Reclassifed from Accumulated OCI into Income	91	0
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments	1,452	(1,524)
Derivative, Description of Hedged Item	Fixed rate debt	Fixed rate debt
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge	(1,452)	1,524
Forward Starting Swaps/Treasury Locks [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion - Amount of Gain/ (Loss) Recognized in OCI on Derivative	(21,790)	12,337
Effective Portion - Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income	(8,335)	(12,098)
Ineffective Portion - Amount of Gain/ (Loss) Reclassifed from Accumulated OCI into Income	$ 91	$ 0

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Real Estate (Details 2) (USD $)	3 Months Ended		6 Months Ended			12 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Consolidated Rental Properties [Member]	Dec. 31, 2013 Consolidated Rental Properties [Member]	Jun. 30, 2014 Land [Member]	Jun. 30, 2014 Ground Lease [Member]	Jun. 30, 2013 Ground Lease [Member]	Jun. 30, 2014 Ground Lease [Member]	Jun. 30, 2013 Ground Lease [Member]	Jun. 30, 2014 Retail Site [Member]	Jun. 30, 2013 Retail Site [Member]	Jun. 30, 2014 Retail Site [Member]	Jun. 30, 2013 Retail Site [Member]
Amortization of Intangible Assets			$ 1,530,000	$ 1,216,000				$ 1,100,000	$ 1,000,000	$ 2,200,000	$ 1,400,000	$ 300,000	$ 100,000	$ 600,000	$ 200,000
Income Loss From Equity Method Investments Merger Expenses			6,200,000	53,000,000
Properties acquired			3		3
Property Units Acquired			772		772
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	265,400,000		265,400,000		249,610,000		15,790,000
Disposed Properties			1		1
Disposed Units			336		336
Proceeds From Sale Of Property			49,050,000		40,850,000	4,500,000,000	8,200,000
Net gain on sales of real estate properties	14,903,000	0	14,903,000	0
Net gain on sales of land parcels	$ 824,000	$ 14,616,000	$ 794,000	$ 14,616,000

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Deposits - Restricted (Tables)

6 Months Ended

Jun. 30, 2014

Deposits - Restricted [Abstract]

Schedule of Restricted Cash and Cash Equivalents [Table Text Block]

The following table presents the Company’s restricted deposits as of June 30, 2014 and December 31, 2013 (amounts in thousands):

	June 30, 2014		December 31, 2013
Earnest money on pending acquisitions	$	830	$	4,514
Restricted deposits on real estate investments	36,476		53,771
Resident security and utility deposits	46,597		44,777
Other	505		505
Totals	$	84,408	$	103,567

Escrow Deposits [Text Block]

The following table presents the Company’s escrow deposits as of June 30, 2014 and December 31, 2013 (amounts in thousands):

	June 30, 2014		December 31, 2013
Real estate taxes and insurance	$	3,500	$	3,687
Replacement reserves	3,469		4,229
Mortgage principal reserves/sinking funds	37,448		33,868
Other	852		852
Totals	$	45,269	$	42,636

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Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	$ 102,307	$ (58,511)	$ 183,987	$ (223,850)
Income (Loss) Attributable to Noncontrolling Interest	(4,422)	2,231	(7,475)	9,078
Net gain on sales of real estate properties	14,903	0	14,903	0
Allocation Of Net Income Loss To Noncontrolling Interests Partially Owned Properties	(588)	815	(1,092)	790
Dividends, Preferred Stock	(1,036)	(1,036)	(2,072)	(2,072)
Income (Loss) from Continuing Operations Attributable to Parent	111,164	(56,501)	188,251	(216,054)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	490	380,224	1,502	1,556,427
Net Income Loss Available To Common Stockholder Basic	111,654	323,723	189,753	1,340,373
Income From Continuing Operations Available To Common Shares	115,586		195,726
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	510	395,243	1,562	1,621,616
Net Income (Loss) Available to Common Stockholders, Diluted	116,096	323,723	197,288	1,340,373
Weighted Average Number of Shares Outstanding, Basic	360,809	359,653	360,641	348,654
Dilutive Op Units	13,742		13,736
Dilutive Securities Options	2,567		2,403
Weighted Average Number of Shares Outstanding, Diluted	377,118	359,653	376,780	348,654
Earnings Per Share, Basic	$ 0.309	$ 0.900	$ 0.526	$ 3.844
Earnings Per Share, Diluted	$ 0.308	$ 0.900	$ 0.524	$ 3.844
Income (loss) from continuing operations available to Common Shares	$ 0.308	$ (0.157)	$ 0.522	$ (0.620)
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share	$ 0.001	$ 1.057	$ 0.004	$ 4.464
Income (loss) from continuing operations available to Common Shares	$ 0.307	$ (0.157)	$ 0.520	$ (0.620)
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share	$ 0.001	$ 1.057	$ 0.004	$ 4.464
OPERATING PARTNERSHIP
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	102,307	(58,511)	183,987	(223,850)
Net gain on sales of real estate properties	14,903	0	14,903	0
Allocation Of Net Income Loss To Noncontrolling Interests Partially Owned Properties	(588)	815	(1,092)	790
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	510	395,243	1,562	1,621,616
Dilutive Securities Options	2,567		2,403
Earnings Per Share, Basic	$ 0.309	$ 0.900	$ 0.526	$ 3.844
Earnings Per Share, Diluted	$ 0.308	$ 0.900	$ 0.524	$ 3.844
Income (loss) from continuing operations available to Common Shares	$ 0.308	$ (0.157)	$ 0.522	$ (0.620)
Income (loss) from continuing operations available to Common Shares	$ 0.307	$ (0.157)	$ 0.520	$ (0.620)
Dividend preference units	(1,036)	(1,036)	(2,072)	(2,072)
Income (Loss) From Continuing Operations Available To Units	115,586	(58,732)	195,726	(225,132)
Net Income loss available to Op unitholders basic diluted numerator	$ 116,096	$ 336,511	$ 197,288	$ 1,396,484
Weighted Average Limited Partnership and General Partnership Units Outstanding, Basic	374,551	373,403	374,377	362,390
Weighted Average Number Of Limited Partnership And General Partnership Unit Outstanding Diluted	377,118	373,403	376,780	362,390
Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Limited Partnership and General Partnership Unit, Basic	$ 0.001	$ 1.057	$ 0.004	$ 4.464
Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership And General Partnership Diluted	$ 0.001	$ 1.057	$ 0.004	$ 4.464

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Reportable Segments

6 Months Ended

Jun. 30, 2014

Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]

Segment Reporting Disclosure [Text Block]

13. Reportable Segments

Operating segments are defined as components of an enterprise that engage in business activities from which they may earn revenues and incur expenses and about which discrete financial information is available that is evaluated regularly by the chief operating decision maker. The chief operating decision maker decides how resources are allocated and assesses performance on a recurring basis at least quarterly.

The Company’s primary business is the acquisition, development and management of multifamily residential properties, which includes the generation of rental and other related income through the leasing of apartment units to residents. The chief operating decision maker evaluates the Company's operating performance geographically by market and both on a same store and non-same store basis. The Company’s operating segments located in its core markets represent its reportable segments (with the aggregation of Los Angeles, Orange County and San Diego into the Southern California reportable segment). The Company's operating segments located in its non-core markets that are not material have also been aggregated in the tables presented below.

The Company’s fee and asset management and development (including its partially owned properties) activities are other business activities that do not constitute an operating segment and as such, have been aggregated in the "Other" category in the tables presented below.

All revenues are from external customers and there is no customer who contributed 10% or more of the Company’s total revenues during the six months and quarters ended June 30, 2014 and 2013, respectively.

The primary financial measure for the Company’s rental real estate segment is net operating income (“NOI”), which represents rental income less: 1) property and maintenance expense; 2) real estate taxes and insurance expense; and 3) property management expense (all as reflected in the accompanying consolidated statements of operations and comprehensive income). The Company believes that NOI is helpful to investors as a supplemental measure of its operating performance because it is a direct measure of the actual operating results of the Company’s apartment communities. Current year NOI is compared to prior year NOI and current year budgeted NOI as a measure of financial performance. The following tables present NOI for each segment from our rental real estate specific to continuing operations for the six months and quarters ended June 30, 2014 and 2013, respectively, as well as total assets and capital expenditures at June 30, 2014 (amounts in thousands):

	Six Months Ended June 30, 2014							Six Months Ended June 30, 2013
	Rental Income		Operating Expenses		NOI			Rental Income			Operating Expenses			NOI
Same store (1)
Boston	$	125,024	$	41,414	$	83,610		$	120,455		$	39,651		$	80,804
Denver	54,123		15,098		39,025			50,494			14,987			35,507
New York	225,407		88,102		137,305			217,297			83,745			133,552
San Francisco	165,343		52,960		112,383			152,459			54,109			98,350
Seattle	76,702		25,805		50,897			71,548			24,553			46,995
South Florida	97,893		36,404		61,489			93,289			35,417			57,872
Southern California	207,272		69,450		137,822			198,366			69,149			129,217
Washington DC	222,135		72,499		149,636			223,807			71,049			152,758
Non-core	65,607		24,495		41,112			63,715			23,931			39,784
Total same store	1,239,506		426,227		813,279			1,191,430			416,591			774,839
Non-same store/other (2) (3)
Boston	1,817		413		1,404			1,154			255			899
Seattle	4,444		1,779		2,665			1,303			374			929
South Florida	2,041		1,301		740			24			146			(122		)
Southern California	15,623		7,452		8,171			5,397			2,593			2,804
Washington DC	10,840		3,857		6,983			5,320			1,862			3,458
Other (3)	6,220		7,754		(1,534		)	4,901			13,295			(8,394		)
Total non-same store/other	40,985		22,556		18,429			18,099			18,525			(426		)
Archstone pre-ownership (4)	—		—		—			(92,423		)	(36,729		)	(55,694		)
Total	$	1,280,491	$	448,783	$	831,708		$	1,117,106		$	398,387		$	718,719

(1) Same store primarily includes all properties acquired or completed and stabilized prior to January 1, 2013, less properties subsequently sold, which represented 100,648 apartment units. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(2) Non-same store primarily includes properties acquired after January 1, 2013, plus any properties in lease-up and not stabilized as of January 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(3) Other includes development, other corporate operations and operations prior to sale for properties sold in 2014 that do not meet the new discontinued operations criteria.

(4) Represents pro forma Archstone pre-ownership results for the period January 1, 2013 to February 27, 2013 that is included in 2013 same store results.

	Quarter Ended June 30, 2014						Quarter Ended June 30, 2013
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Boston	$	63,117	$	19,259	$	43,858	$	61,401	$	19,444	$	41,957
Denver	27,511		7,648		19,863		25,524		7,770		17,754
New York	114,221		41,898		72,323		109,299		40,634		68,665
San Francisco	84,082		26,305		57,777		77,514		25,955		51,559
Seattle	38,977		13,037		25,940		36,176		12,316		23,860
South Florida	49,456		18,220		31,236		47,051		17,774		29,277
Southern California	104,608		34,811		69,797		100,156		34,275		65,881
Washington DC	111,739		35,102		76,637		112,815		35,165		77,650
Non-core	33,035		11,806		21,229		32,110		11,880		20,230
Total same store	626,746		208,086		418,660		602,046		205,213		396,833
Non-same store/other (2) (3)
Boston	790		202		588		898		201		697
Seattle	2,756		1,042		1,714		1,271		373		898
South Florida	1,241		760		481		14		68		(54		)
Southern California	8,446		4,261		4,185		4,106		1,976		2,130
Washington DC	5,906		1,954		3,952		3,512		1,209		2,303
Other (3)	3,881		2,693		1,188		2,697		3,234		(537		)
Total non-same store/other	23,020		10,912		12,108		12,498		7,061		5,437
Total	$	649,766	$	218,998	$	430,768	$	614,544	$	212,274	$	402,270

(1) Same store primarily includes all properties acquired or completed and stabilized prior to April 1, 2013, less properties subsequently sold, which represented 100,648 apartment units. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(2) Non-same store primarily includes properties acquired after April 1, 2013, plus any properties in lease-up and not stabilized as of April 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(3) Other includes development, other corporate operations and operations prior to sale for properties sold in 2014 that do not meet the new discontinued operations criteria.

	Six Months Ended June 30, 2014
	Total Assets		Capital Expenditures
Same store (1)
Boston	$	1,953,627	$	8,814
Denver	530,832		1,904
New York	4,720,592		8,202
San Francisco	2,753,902		12,704
Seattle	1,046,051		5,264
South Florida	1,170,295		7,600
Southern California	2,978,750		11,953
Washington DC	4,270,418		14,834
Non-core	605,225		3,123
Total same store	20,029,692		74,398
Non-same store/other (2) (3)
Boston	48,830		630
Seattle	226,604		281
South Florida	70,896		16
Southern California	511,343		645
Washington DC	306,594		852
Other (3)	1,797,443		90
Total non-same store/other	2,961,710		2,514
Total	$	22,991,402	$	76,912

(1) Same store primarily includes all properties acquired or completed and stabilized prior to January 1, 2013, less properties subsequently sold, which represented 100,648 apartment units. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(2) Non-same store primarily includes properties acquired after January 1, 2013, plus any properties in lease-up and not stabilized as of January 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(3) Other includes development, other corporate operations and capital expenditures for properties sold.

Note: Markets/Metro Areas aggregated in the above Southern California and Non-core segments are as follows:

(a) Southern California – Los Angeles, Orange County and San Diego.

(b) Non-core – Inland Empire, CA, New England (excluding Boston), Orlando and Phoenix.

The following table presents a reconciliation of NOI from our rental real estate specific to continuing operations for the six months and quarters ended June 30, 2014 and 2013, respectively (amounts in thousands):

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Rental income	$	1,280,491		$	1,117,106		$	649,766		$	614,544
Property and maintenance expense	(240,961		)	(212,030		)	(115,388		)	(113,501		)
Real estate taxes and insurance expense	(165,149		)	(141,837		)	(83,055		)	(76,742		)
Property management expense	(42,673		)	(44,520		)	(20,555		)	(22,031		)
Total operating expenses	(448,783		)	(398,387		)	(218,998		)	(212,274		)
Net operating income	$	831,708		$	718,719		$	430,768		$	402,270

XML

Debt Mortgage Notes Payable (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Mortgage notes payable	$ 5,158,091,000	$ 5,174,166,000
Repayments Of Long-term Debt	9,100,000
Debt Instrument, Maturity Date	May 01, 2061
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	0.03%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	7.25%
Weighted Average Mortgage Debt Interest Rate	4.23%
Credit enhanced debt [Member]
Debt Instrument [Line Items]
Mortgage notes payable	$ 700,500,000

XML

Equity, Capital and Other Interests Preferred (Details) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	100,000,000	100,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Shares of beneficial interest, $0.01 par value; 100,000,000 shares authorized; 1,000,000 shares issued and outstanding as of June 30, 2014 and December 31, 2013	$ 50,000	$ 50,000
Series K Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock Preference Units Issued	1,000,000	1,000,000
Preferred Stock Preference Units Outstanding	1,000,000	1,000,000
Preferred Stock Preference Units Redemption Price Per Share Unit	$ 50.00	$ 50.00
Preferred Stock Preference Units Dividend Rate Percentage	8.29%	8.29%
Preferred Stocks Preference Units Redemption Date	Dec. 10, 2026
Annual Dividend Per Preferred Share Preference Unit	$ 4.145
Preferred Shares of beneficial interest, $0.01 par value; 100,000,000 shares authorized; 1,000,000 shares issued and outstanding as of June 30, 2014 and December 31, 2013	50,000	50,000
Preferred Units, Preferred Partners' Capital Accounts	$ 50,000	$ 50,000

XML

Reportable Segments (Tables)

6 Months Ended

Jun. 30, 2014

Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]

Reportable Segments Schedule

The following tables present NOI for each segment from our rental real estate specific to continuing operations for the six months and quarters ended June 30, 2014 and 2013, respectively, as well as total assets and capital expenditures at June 30, 2014 (amounts in thousands):

	Six Months Ended June 30, 2014							Six Months Ended June 30, 2013
	Rental Income		Operating Expenses		NOI			Rental Income			Operating Expenses			NOI
Same store (1)
Boston	$	125,024	$	41,414	$	83,610		$	120,455		$	39,651		$	80,804
Denver	54,123		15,098		39,025			50,494			14,987			35,507
New York	225,407		88,102		137,305			217,297			83,745			133,552
San Francisco	165,343		52,960		112,383			152,459			54,109			98,350
Seattle	76,702		25,805		50,897			71,548			24,553			46,995
South Florida	97,893		36,404		61,489			93,289			35,417			57,872
Southern California	207,272		69,450		137,822			198,366			69,149			129,217
Washington DC	222,135		72,499		149,636			223,807			71,049			152,758
Non-core	65,607		24,495		41,112			63,715			23,931			39,784
Total same store	1,239,506		426,227		813,279			1,191,430			416,591			774,839
Non-same store/other (2) (3)
Boston	1,817		413		1,404			1,154			255			899
Seattle	4,444		1,779		2,665			1,303			374			929
South Florida	2,041		1,301		740			24			146			(122		)
Southern California	15,623		7,452		8,171			5,397			2,593			2,804
Washington DC	10,840		3,857		6,983			5,320			1,862			3,458
Other (3)	6,220		7,754		(1,534		)	4,901			13,295			(8,394		)
Total non-same store/other	40,985		22,556		18,429			18,099			18,525			(426		)
Archstone pre-ownership (4)	—		—		—			(92,423		)	(36,729		)	(55,694		)
Total	$	1,280,491	$	448,783	$	831,708		$	1,117,106		$	398,387		$	718,719

(1) Same store primarily includes all properties acquired or completed and stabilized prior to January 1, 2013, less properties subsequently sold, which represented 100,648 apartment units. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(2) Non-same store primarily includes properties acquired after January 1, 2013, plus any properties in lease-up and not stabilized as of January 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(3) Other includes development, other corporate operations and operations prior to sale for properties sold in 2014 that do not meet the new discontinued operations criteria.

(4) Represents pro forma Archstone pre-ownership results for the period January 1, 2013 to February 27, 2013 that is included in 2013 same store results.

	Quarter Ended June 30, 2014						Quarter Ended June 30, 2013
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Boston	$	63,117	$	19,259	$	43,858	$	61,401	$	19,444	$	41,957
Denver	27,511		7,648		19,863		25,524		7,770		17,754
New York	114,221		41,898		72,323		109,299		40,634		68,665
San Francisco	84,082		26,305		57,777		77,514		25,955		51,559
Seattle	38,977		13,037		25,940		36,176		12,316		23,860
South Florida	49,456		18,220		31,236		47,051		17,774		29,277
Southern California	104,608		34,811		69,797		100,156		34,275		65,881
Washington DC	111,739		35,102		76,637		112,815		35,165		77,650
Non-core	33,035		11,806		21,229		32,110		11,880		20,230
Total same store	626,746		208,086		418,660		602,046		205,213		396,833
Non-same store/other (2) (3)
Boston	790		202		588		898		201		697
Seattle	2,756		1,042		1,714		1,271		373		898
South Florida	1,241		760		481		14		68		(54		)
Southern California	8,446		4,261		4,185		4,106		1,976		2,130
Washington DC	5,906		1,954		3,952		3,512		1,209		2,303
Other (3)	3,881		2,693		1,188		2,697		3,234		(537		)
Total non-same store/other	23,020		10,912		12,108		12,498		7,061		5,437
Total	$	649,766	$	218,998	$	430,768	$	614,544	$	212,274	$	402,270

(1) Same store primarily includes all properties acquired or completed and stabilized prior to April 1, 2013, less properties subsequently sold, which represented 100,648 apartment units. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(2) Non-same store primarily includes properties acquired after April 1, 2013, plus any properties in lease-up and not stabilized as of April 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(3) Other includes development, other corporate operations and operations prior to sale for properties sold in 2014 that do not meet the new discontinued operations criteria.

	Six Months Ended June 30, 2014
	Total Assets		Capital Expenditures
Same store (1)
Boston	$	1,953,627	$	8,814
Denver	530,832		1,904
New York	4,720,592		8,202
San Francisco	2,753,902		12,704
Seattle	1,046,051		5,264
South Florida	1,170,295		7,600
Southern California	2,978,750		11,953
Washington DC	4,270,418		14,834
Non-core	605,225		3,123
Total same store	20,029,692		74,398
Non-same store/other (2) (3)
Boston	48,830		630
Seattle	226,604		281
South Florida	70,896		16
Southern California	511,343		645
Washington DC	306,594		852
Other (3)	1,797,443		90
Total non-same store/other	2,961,710		2,514
Total	$	22,991,402	$	76,912

(1) Same store primarily includes all properties acquired or completed and stabilized prior to January 1, 2013, less properties subsequently sold, which represented 100,648 apartment units. Also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(2) Non-same store primarily includes properties acquired after January 1, 2013, plus any properties in lease-up and not stabilized as of January 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.

(3) Other includes development, other corporate operations and capital expenditures for properties sold.

Reconciliation of NOI

The following table presents a reconciliation of NOI from our rental real estate specific to continuing operations for the six months and quarters ended June 30, 2014 and 2013, respectively (amounts in thousands):

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Rental income	$	1,280,491		$	1,117,106		$	649,766		$	614,544
Property and maintenance expense	(240,961		)	(212,030		)	(115,388		)	(113,501		)
Real estate taxes and insurance expense	(165,149		)	(141,837		)	(83,055		)	(76,742		)
Property management expense	(42,673		)	(44,520		)	(20,555		)	(22,031		)
Total operating expenses	(448,783		)	(398,387		)	(218,998		)	(212,274		)
Net operating income	$	831,708		$	718,719		$	430,768		$	402,270

XML

Debt Lines of Credit (Details) (USD $)	6 Months Ended
	Jun. 30, 2014
Line of Credit Facility [Line Items]
Debt Instrument, Maturity Date	May 01, 2061
500.0 million ability to increase	$ 500,000,000
Debt Instrument, Basis Spread on Variable Rate	1.05%
A 250 billion LOC [Member] [Domain]
Line of Credit Facility [Line Items]
Unsecured revolving credit facility	2,500,000,000
Debt Instrument, Maturity Date	Apr. 01, 2018
Remaining borrowing capacity	2,470,000,000
Amount restricted/dedicated to support letters of credit	34,800,000
Weighted Average Interest Rate Revolving Credit Facility	0.96%
A 175 billion LOC [Member]
Line of Credit Facility [Line Items]
Unsecured revolving credit facility	$ 1,750,000,000
London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Commitment Fee	15.00%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR plus 1.05%

XML

Subsequent Events/Other (Details) (USD $)	6 Months Ended		1 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jul. 31, 2014 Subsequent Event [Member]
Subsequent Event [Line Items]
Land parcels acquired			1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 265,400,000		$ 13,000,000
Repayments Of Long-term Debt	9,100,000		60,700,000
Business Combination, Acquisition Related Costs	100,000	100,000
Write-off of pursuit costs	1,492,000	3,365,000
Other Expenses	1,600,000	3,500,000
Litigation Settlement, Amount	$ 2,300,000

XML

Commitments to Acquire/Dispose of Real Estate (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Commitments to Acquire Real Estate
Properties Acquired-Total	0
Rental Units Acquired - Total	0
Purchase Price - Total	$ 3,300
Commitments to Dispose of Real Estate
Properties Disposed - Total	6
Rental Units Disposed-Total	2,005
Sales Price For Commitments To Dispose	360,752
Rental Properties Disposed of [Member]
Commitments to Dispose of Real Estate
Properties Disposed - Total	6
Rental Units Disposed-Total	2,005
Sales Price For Commitments To Dispose	306,350
Land [Member]
Commitments to Dispose of Real Estate
Sales Price For Commitments To Dispose	54,402
Land [Member]
Commitments to Acquire Real Estate
Purchase Price - Total	$ 3,300

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 200,452	$ 1,397,766
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	375,303	550,488
Amortization of deferred financing costs	5,926	11,529
Amortization of Intangible Assets	1,530	1,216
Amortization of discounts and premiums on debt	(5,876)	(23,031)
Amortization of deferred settlements on derivative instruments	8,068	11,830
Write-off of pursuit costs	1,492	3,365
Income Loss from Investments in Unconsolidated Entities Adjustment	9,025	54,540
Distributions from unconsolidated entities - return on capital	2,390	588
Net (gain) on sales of land parcels	(794)	(14,616)
Net (gain) on sales of discontinued operations	(224)	(1,588,874)
Net (gain) on sales of real estate properties	(14,903)	0
Unrealized (gain) loss on derivative instruments	(90)	24
Compensation paid with Company Common Shares	21,905	22,089
Changes in assets and liabilities:
(Increase) in deposits – restricted	(1,820)	(12,220)
Decrease in mortgage deposits	187	789
(Increase) in other assets	(7,745)	(4,695)
Increase in accounts payable and accrued expenses	38,951	25,956
Increase (decrease) in accrued interest payable	80	(1,396)
(Decrease) in other liabilities	(17,237)	(11,449)
Increase (decrease) in security deposits	2,916	(6,080)
Net cash provided by operating activities	619,536	417,819
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments to Acquire Businesses, Net of Cash Acquired	0	(4,000,875)
Investment in real estate – acquisitions	(265,466)	(108,308)
Investment in real estate - development/other	(245,657)	(154,576)
Improvements to real estate	(76,912)	(57,253)
Additions to non-real estate property	(1,818)	(2,801)
Interest capitalized for real estate and unconsolidated entities under development	(25,037)	(20,006)
Proceeds from disposition of real estate, net	48,359	3,764,000
Investments in unconsolidated entities	(9,554)	(53,687)
Proceeds From Distributions Received From Unconsolidated Subsidiaries	64,669	0
Decrease in deposits on real estate acquisitions and investments, net	20,979	65,869
Decrease in mortgage deposits	760	5,089
Acquisition of Noncontrolling Interests – Partially Owned Properties	(5,501)	0
Net cash (used for) investing activities	(495,178)	(562,548)
CASH FLOWS FROM FINANCING ACTIVITIES:
Loan and bond acquisition costs	(10,881)	(18,006)
Mortgage Deposits	(3,580)	(2,208)
Mortgage notes payable:
Proceeds from Issuance of Long-term Debt	0	683
Lump sum payoffs	(3,064)	(697,897)
Scheduled principal repayments	(6,000)	(6,336)
Notes, net:
Proceeds from Notes Payable	1,194,277	1,245,550
Lump sum payoffs	(750,000)	(400,000)
Line of Credit Facility:
Proceeds	3,374,000	8,413,000
Repayments	(3,489,000)	(8,413,000)
(Payments on) settlement of derivative instruments	(733)	(44,013)
Proceeds from Employee Stock Purchase Plan	2,218	2,363
Proceeds from exercise of options	25,685	13,885
Payments for Repurchase of Common Stock	(1,777)	0
Payment of offering costs	0	(744)
Other financing activities, net	(33)	(33)
Contributions - Noncontrolling Interests - Partially Owned Properties	5,684	6,769
Contributions - Noncontrolling Interests - Operating Partnership	3	5
Distributions:
Common Shares	(414,843)	(393,347)
Preferred Shares	(2,072)	(1,036)
Noncontrolling Interests – Operating Partnership	(16,405)	(16,528)
Noncontrolling Interests – Partially Owned Properties	(5,239)	(4,404)
Net cash (used for) financing activities	(101,760)	(315,297)
Net increase (decrease) in cash and cash equivalents	22,598	(460,026)
Cash and cash equivalents, beginning of period	53,534	612,590
Cash and cash equivalents, end of period	76,132	152,564
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	226,785	319,992
Net cash paid for income and other taxes	843	1,028
AmortizationOfDeferredFinancingCosts [Abstract]
Amortization Of Deferred Financing Costs Investment In Real Estate Net	0	(1)
Amortization Of Deferred Financing Costs Deferred Financing Costs Net	5,926	11,530
Amortization of discounts and premiums on debt:
Mortgage notes payable	(7,011)	(24,083)
Notes, net	1,135	1,052
Amortization of deferred settlements on derivative instruments:
Other liabilities	(267)	(268)
Losses reclassified into earnings from other comprehensive income	8,335	12,098
Loss From Investments In Unconsolidated Entities [Abstract]
Income Loss From Equity Method Investments Merger	7,354	49,507
Other Liabilities Loss From Investments in unconsolidated entities	1,671	5,033
Distributions from unconsolidated entities return on capital [Abstract]
Distributions from unconsolidated entities investments in unconsolidated entities	2,285	588
Distributions from unconsolidated entities other liabilities	105	0
Unrealized (gain) loss on derivative instruments:
Other assets	10,611	(10,753)
Notes, net	1,452	(1,523)
Other liabilities	9,728	(37)
Unrealized holding (losses) gains arising during the period	(21,881)	12,337
Acquisition of Archstone, net of cash acquired [Abstract]
Acquisition of Archstone Investment in Real Estate Net	39,929	(8,713,217)
Acquisition of Archstone Investments in Unconsolidated Entities	(33,993)	(214,677)
Acquisition of Archstone Deposits Restricted	0	(474)
Acquisition of Archstone Escrow Deposits Mortgage	0	(35,898)
Acquisition of Archstone Deferred Financing Costs	0	(25,780)
Acquisition of Archstone Other Assets	(2,586)	(203,008)
Acquisition of Archstone Mortgage Notes Payable	0	3,076,876
Acquisition of Archstone Accounts Payable And Accrued Liabilities	(146)	17,576
Acqusition of Archstone Interest Payable	0	11,256
Acquisition of Archstone Other Liabilities	(3,204)	117,391
Acquisition of Archstone Security Deposits	0	10,949
Acquisition of Archstone Common Shares Issued	0	1,929,868
Acquisition of Archstone Noncontrolling Interests Partially Owned Properties	0	28,263
Interest capitalized for real estate and unconsolidated entities under development:
Investment in real estate, net	(25,002)	(19,195)
Investments in unconsolidated entities	(35)	(811)
Investments in unconsolidated entities [Abstract]
Investments in unconsolidated entities	(2,354)	(4,371)
Investments in unconsolidated entities other liabilities	(7,200)	(49,316)
Other:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	$ (1,718)	$ (941)

XML

Equity, Capital and Other Interests ERP Units (Details)	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Capital Unit [Line Items]
Common Shares And Units Outstanding	375,898,833
Exercise of EQR share options	851,514
EQR's Employee Share Purchase Plan (ESPP)	47,457
Restricted Share Grants Net	170,626
OP Units repurchased and retired	31,240
Conversion Of Restricted Shares To Ltip Units Shares	(12,146)
Shares Issued During Period Shares Conversion Of Units To Common Shares	56,536
Units Ownership Interest in Operating Partnership	3.80%
Limited Partner [Member]
Capital Unit [Line Items]
Limited Partners' Capital Account, Units Outstanding	14,336,826	14,180,376
Issuance Of LTIPs	200,840
Conversion Of Restricted Shares To Ltip Units Shares	12,146
Shares Issued During Period Shares Conversion Of Units To Common Shares	(56,536)
Limited Partner [Member]
Capital Unit [Line Items]
Limited Partners' Capital Account, Units Outstanding	14,336,826	14,180,376
Issuance Of LTIPs	200,840
Conversion Of Restricted Shares To Ltip Units Shares	12,146
Shares Issued During Period Shares Conversion Of Units To Common Shares	(56,536)
General And Limited Partner [Member]
Capital Unit [Line Items]
Common Shares And Units Outstanding	375,898,833	374,659,636
Exercise of EQR share options	851,514
EQR's Employee Share Purchase Plan (ESPP)	47,457
Restricted Share Grants Net	170,626
Issuance Of LTIPs	200,840
OP Units repurchased and retired	(31,240)

XML

Equity, Capital and Other Interests (Tables)

6 Months Ended

Jun. 30, 2014

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 six months ended June 30, 2014 (amounts in thousands):

	2014
Balance at January 1,	$	363,144
Change in market value	80,615
Change in carrying value	(3,709		)
Balance at June 30,	$	440,050

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 six months ended June 30, 2014:

	2014
Common Shares
Common Shares outstanding at January 1,	360,479,260
Common Shares Issued:
Conversion of OP Units	56,536
Exercise of share options	851,514
Employee Share Purchase Plan (ESPP)	47,457
Restricted share grants, net	170,626
Common Shares Other:
Conversion of restricted shares to LTIP Units	(12,146	)
Repurchased and retired	(31,240	)
Common Shares outstanding at June 30,	361,562,007
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	(56,536	)
Units outstanding at June 30,	14,336,826
Total Common Shares and Units outstanding at June 30,	375,898,833
Units Ownership Interest in Operating Partnership	3.8	%

Schedule Of Preferred Stock [Table Text Block]

The following table presents the Company’s issued and outstanding Preferred Shares as of June 30, 2014 and December 31, 2013:

				Amounts in thousands
	Redemption Date (1)	Annual Dividend per Share (2)		June 30, 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 June 30, 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]

Redeemable Noncontrolling Interest [Table Text Block]

The following table presents the changes in the redemption value of the Redeemable Limited Partners for the six months ended June 30, 2014 (amounts in thousands):

	2014
Balance at January 1,	$	363,144
Change in market value	80,615
Change in carrying value	(3,709		)
Balance at June 30,	$	440,050

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 six months ended June 30, 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	851,514
EQR’s Employee Share Purchase Plan (ESPP)	47,457
EQR's restricted share grants, net	170,626
Issued to Limited Partners:
LTIP Units, net	200,840
OP Units Other:
Repurchased and retired	(31,240	)
General and Limited Partner Units outstanding at June 30,	375,898,833
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	(56,536	)
Limited Partner Units outstanding at June 30,	14,336,826
Limited Partner Units Ownership Interest in Operating Partnership	3.8	%

Schedule Of Preferred Stock [Table Text Block]

The following table presents the Operating Partnership’s issued and outstanding “Preference Units” as of June 30, 2014 and December 31, 2013:

				Amounts in thousands
	Redemption Date (1)	Annual Dividend per Unit (2)		June 30, 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 June 30, 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.

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Business (Tables)

6 Months Ended

Jun. 30, 2014

Business [Abstract]

Schedule of Real Estate Properties

The ownership breakdown includes (table does not include various uncompleted development properties):

	Properties	Apartment Units
Wholly Owned Properties	369	100,210
Master-Leased Properties – Consolidated	3	853
Partially Owned Properties – Consolidated	19	3,752
Partially Owned Properties – Unconsolidated	4	1,669
Military Housing	2	5,007
	397	111,491

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Derivative and Other Fair Value Instruments (Details Textuals) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Derivative [Line Items]
Mortgage notes payable	$ 5,158,091,000	$ 5,174,166,000
Notes, net	5,923,952,000	5,477,088,000
Debt Instrument, Fair Value Disclosure	5,200,000,000	5,100,000,000
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)	(169,300,000)	(155,800,000)
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	22,000,000
Payments for (Proceeds from) Hedge, Investing Activities	2,000,000
Debt Instrument, Face Amount	750,000,000
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net	100,000
Interest Expense	1,300,000
ChargesHedgeTerminationActivities	800,000
Total Note Payable and Long-Term Line of Credit [Member]
Derivative [Line Items]
Notes, net	5,900,000,000	5,600,000,000
Debt Instrument, Fair Value Disclosure	6,400,000,000	5,900,000,000
Fair Value Hedging maturity date 2019 [Member]
Derivative [Line Items]
Derivative, Variable Interest Rate	0.61%
London Interbank Offered Rate (LIBOR) [Member] | Fair Value Hedging maturity date 2019 [Member]
Derivative [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR plus 0.61%
2.375% Notes [Member]
Derivative [Line Items]
Proceeds from Issuance of Unsecured Debt	$ 450,000,000
Debt Instrument, Interest Rate, Stated Percentage	2.375%
Maturity Date	Jul. 01, 2019

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Equity, Capital and Other Interests Text (Details) (USD $)	3 Months Ended	6 Months Ended
	Mar. 31, 2013	Jun. 30, 2014
Additional Common Shares Authorized		13,000,000
Stock Repurchase Program, Number of Shares Authorized to be Repurchased		13,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased		12,968,760
Stock Repurchased And Retired		(31,240)
Treasury Stock Acquired, Average Cost Per Share		$ 56.87
Value Of Stock Repurchased And Retired		$ 1,800,000
OP Units repurchased and retired		31,240
Number of Units in Real Estate Property		111,491
Payments to Acquire Interest in Subsidiaries and Affiliates		5,500,000
Increase To Reduction Of Paid In Capital		2,300,000
Reduction In Partially Owned Properties		2,200,000
Reduction In Other Liabilities		1,000,000
Archstone Transaction [Member]
Issuance of Common Shares	34,468,085
Stock Issued During Period, Value, New Issues	$ 1,900,000,000
Average Price Per Common Share Issued	$ 55.99
Units Issued During Period New Issues		34,468,085
Enclave at Wellington [Domain]
Number of Units in Real Estate Property		268

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Real Estate (Tables)

6 Months Ended

Jun. 30, 2014

Real Estate [Abstract]

Schedule of Real Estate Investments And Accumlated Depreciation [Table Text Block}

The following table summarizes the carrying amounts for the Company’s investment in real estate (at cost) as of June 30, 2014 and December 31, 2013 (amounts in thousands):

	June 30, 2014			December 31, 2013
Land	$	6,296,735		$	6,192,512
Depreciable property:
Buildings and improvements	17,920,222			17,509,609
Furniture, fixtures and equipment	1,302,882			1,214,220
In-Place lease intangibles	507,633			502,218
Projects under development:
Land	391,156			353,574
Construction-in-progress	615,836			635,293
Land held for development:
Land	256,536			341,389
Construction-in-progress	50,089			52,133
Investment in real estate	27,341,089			26,800,948
Accumulated depreciation	(5,170,438		)	(4,807,709		)
Investment in real estate, net	$	22,170,651		$	21,993,239

Schedule of Finite-Lived Intangible Assets [Table Text Block]

The following table summarizes the carrying amounts for the Company's above and below market ground and retail lease intangibles as of June 30, 2014 and December 31, 2013 (amounts in thousands):

Description	Balance Sheet Location	June 30, 2014			December 31, 2013
Assets
Ground lease intangibles – below market	Other Assets	$	178,251		$	178,251
Retail lease intangibles – above market	Other Assets	1,260			1,260
Lease intangible assets		179,511			179,511
Accumulated amortization		(6,641		)	(4,364		)
Lease intangible assets, net		$	172,870		$	175,147
Liabilities
Ground lease intangibles – above market	Other Liabilities	$	2,400		$	2,400
Retail lease intangibles – below market	Other Liabilities	5,270			5,500
Lease intangible liabilities		7,670			7,900
Accumulated amortization		(1,678		)	(1,161		)
Lease intangible liabilities, net		$	5,992		$	6,739

Schedule of Expected Amortization Expense [Table Text Block]

The following table provides a summary of the aggregate amortization expense for above and below market ground lease intangibles and retail lease intangibles for each of the next five years (amounts in thousands):

	Remaining
	2014			2015			2016			2017			2018			2019
Ground lease intangibles	$	2,161		$	4,321		$	4,321		$	4,321		$	4,321		$	4,321
Retail lease intangibles	(469		)	(939		)	(896		)	(540		)	(71		)	(71		)
Total	$	1,692		$	3,382		$	3,425		$	3,781		$	4,250		$	4,250

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The following table summarizes the acquisition date fair values of the assets acquired and liabilities assumed, which the Company determined using Level 1, Level 2 and Level 3 inputs (amounts in thousands):

Land	$	2,239,000
Depreciable property:
Buildings and improvements	5,765,538
Furniture, fixtures and equipment	61,470
In-Place lease intangibles	304,830
Projects under development	36,583
Land held for development	244,097
Investments in unconsolidated entities	230,608
Other assets	195,260
Other liabilities	(108,997		)
Net assets acquired	$	8,968,389

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Text Block]

The following table summarizes the acquisition date fair values of the above and below market ground and retail lease intangibles, which we determined using Level 2 and Level 3 inputs (amounts in thousands):

Description	Balance Sheet Location	Fair Value
Ground lease intangibles – below market	Other Assets	$	178,251
Retail lease intangibles – above market	Other Assets	1,260
Ground lease intangibles – above market	Other Liabilities	2,400
Retail lease intangibles – below market	Other Liabilities	8,040

Acquired Properties Table Text Block

During the six months ended June 30, 2014, the Company disposed of the following to unaffiliated parties (sales price in thousands):

	Properties	Apartment Units	Sales Price
Rental Properties	1	336	$	40,850
Land Parcel	—	—	8,200
Total	1	336	$	49,050

During the six months ended June 30, 2014, the Company acquired the entire equity interest in the following from unaffiliated parties (purchase price in thousands):

	Properties	Apartment Units	Purchase Price
Rental Properties – Consolidated	3	772	$	249,610
Land Parcels – Consolidated	—	—	15,790
Total	3	772	$	265,400

Statement [Line Items]

Business Acquisition, Pro Forma Information [Table Text Block]

The following table illustrates the effect on net income, earnings per share – basic and earnings per share – diluted as if the Company had consummated the Archstone Acquisition as of January 1, 2012 (amounts in thousands, except per share amounts):

	Six Months Ended		Quarter Ended
	June 30, 2013		June 30, 2013
Total revenues	$	1,256,088	$	635,078
Income from continuing operations	60,541		96,585
Discontinued operations, net	1,608,374		389,329
Net income	1,668,915		485,914
Net income available to Common Shares	1,601,368		467,237
Earnings per share - basic:
Net income available to Common Shares	$	4.45	$	1.30
Weighted average Common Shares outstanding (1)	359,509		359,653
Earnings per share - diluted:
Net income available to Common Shares	$	4.44	$	1.29
Weighted average Common Shares outstanding (1)	375,722		375,910

(1) Includes an adjustment for Common Shares issued to the public in November/December 2012 and to an affiliate of Lehman Brothers Holdings Inc. in February 2013 as partial consideration for the Archstone Acquisition.

Limited Partner [Member]

Statement [Line Items]

Business Acquisition, Pro Forma Information [Table Text Block]

The following table illustrates the effect on net income, earnings per Unit – basic and earnings per Unit – diluted as if the Operating Partnership had consummated the Archstone Acquisition as of January 1, 2012 (amounts in thousands, except per Unit amounts):

	Six Months Ended		Quarter Ended
	June 30, 2013		June 30, 2013
Total revenues	$	1,256,088	$	635,078
Income from continuing operations	60,541		96,585
Discontinued operations, net	1,608,374		389,329
Net income	1,668,915		485,914
Net income available to Units	1,668,439		485,693
Earnings per Unit - basic:
Net income available to Units	$	4.45	$	1.30
Weighted average Units outstanding (1)	373,245		373,403
Earnings per Unit - diluted:
Net income available to Units	$	4.44	$	1.29
Weighted average Units outstanding (1)	375,722		375,910

(1) Includes an adjustment for Common Shares issued to the public in November/December 2012 and to an affiliate of Lehman Brothers Holdings Inc. in February 2013 as partial consideration for the Archstone Acquisition. Concurrent with these transactions, ERPOP issued the same number of OP Units to EQR.

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Commitments to Acquire/Dispose of Real Estate (Tables)

6 Months Ended

Jun. 30, 2014

Commitments to Acquire Dispose of Real Estate [Abstract]

Real Estate to be Acquired Table Text Block

he Company has entered into a separate agreement to acquire the following (purchase price in thousands):

	Properties	Apartment Units	Purchase Price
Land Parcel	—	—	$	3,300
Total	—	—	$	3,300

Real Estate To Be Disposed Of Text Block

The Company has entered into separate agreements to dispose of the following (sales price in thousands):

	Properties	Apartment Units	Sales Price
Rental Properties	6	2,005	$	306,350
Land Parcel	—	—	54,402
Total	6	2,005	$	360,752

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Comprehensive income:
Net income	$ 117,720	$ 336,732	$ 200,452	$ 1,397,766
Other comprehensive (loss) income – derivative instruments:
Unrealized holding (losses) gains arising during the period	(9,929)	9,523	(21,881)	12,337
Losses reclassified into earnings from other comprehensive income	4,206	3,826	8,335	12,098
Other comprehensive income – other instruments:
Unrealized holding gains arising during the period	0	501	0	928
Other comprehensive income – foreign currency:
Currency translation adjustments arising during the period	1,627	1,814	1,718	941
Other comprehensive (loss) income	(4,096)	15,664	(11,828)	26,304
Comprehensive income	113,624	352,396	188,624	1,424,070
Comprehensive (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(4,873)	(12,568)	(8,175)	(56,342)
Comprehensive income attributable to controlling interests	108,751	339,828	180,449	1,367,728
OPERATING PARTNERSHIP
Comprehensive income:
Net income	117,720	336,732	200,452	1,397,766
Other comprehensive (loss) income – derivative instruments:
Unrealized holding (losses) gains arising during the period	(9,929)	9,523	(21,881)	12,337
Losses reclassified into earnings from other comprehensive income	4,206	3,826	8,335	12,098
Other comprehensive income – other instruments:
Unrealized holding gains arising during the period	0	501	0	928
Other comprehensive income – foreign currency:
Currency translation adjustments arising during the period	1,627	1,814	1,718	941
Other comprehensive (loss) income	(4,096)	15,664	(11,828)	26,304
Comprehensive income	113,624	352,396	188,624	1,424,070
Comprehensive (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(588)	815	(1,092)	790
Comprehensive income attributable to controlling interests	$ 113,036	$ 353,211	$ 187,532	$ 1,424,860

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Investments in Partially Owned Entities (Tables)

6 Months Ended

Jun. 30, 2014

Investments in Partially Owned Entities [Abstract]

Partially Owned Property Balance Sheet Schedule [Table Text Block]

The following tables and information summarize the Company’s investments in partially owned entities as of June 30, 2014 (amounts in thousands except for project and apartment unit amounts):

	Consolidated								Unconsolidated
	Development Projects								Development Projects
	Held for and/or Under Development		Operating			Total			Held for and/or Under Development		Completed, Not Stabilized (3)			Operating			Total
Total projects (1)	—		19			19			—		2			2			4
Total apartment units (1)	—		3,752			3,752			—		945			724			1,669
Balance sheet information at 6/30/14 (at 100%):
ASSETS
Investment in real estate	$	329,668	$	676,848		$	1,006,516		$	55,998	$	233,411		$	108,164		$	397,573
Accumulated depreciation	—		(183,571		)	(183,571		)	—		(6,693		)	(7,136		)	(13,829		)
Investment in real estate, net	329,668		493,277			822,945			55,998		226,718			101,028			383,744
Cash and cash equivalents	4,488		14,125			18,613			454		2,830			1,582			4,866
Investments in unconsolidated entities	—		53,209			53,209			—		—			—			—
Deposits – restricted	34,761		250			35,011			—		130			47			177
Deferred financing costs, net	—		2,318			2,318			53		4			122			179
Other assets	6,679		26,176			32,855			14		41			1,250			1,305
Total assets	$	375,596	$	589,355		$	964,951		$	56,519	$	229,723		$	104,029		$	390,271
LIABILITIES AND EQUITY/CAPITAL
Mortgage notes payable (2)	$	—	$	360,305		$	360,305		$	21,982	$	145,016		$	63,305		$	230,303
Accounts payable & accrued expenses	12,313		1,730			14,043			5,095		955			350			6,400
Accrued interest payable	—		1,265			1,265			43		687			42			772
Other liabilities	140		1,252			1,392			—		244			1,046			1,290
Security deposits	—		1,916			1,916			—		279			140			419
Total liabilities	12,453		366,468			378,921			27,120		147,181			64,883			239,184
Noncontrolling Interests – Partially Owned Properties/Partners' equity	117,677		8,166			125,843			27,858		70,428			23,434			121,720
Company equity/General and Limited Partners' Capital	245,466		214,721			460,187			1,541		12,114			15,712			29,367
Total equity/capital	363,143		222,887			586,030			29,399		82,542			39,146			151,087
Total liabilities and equity/capital	$	375,596	$	589,355		$	964,951		$	56,519	$	229,723		$	104,029		$	390,271

Partially Owned Property Income Statement Schedule [Table Text Block]

	Consolidated									Unconsolidated
	Development Projects									Development Projects
	Held for and/or Under Development									Held for and/or Under Development						Operating
													Completed, Not Stabilized (3)
				Operating			Total												Total
Operating information for the six months ended 6/30/14 (at 100%):
Operating revenue	$	—		$	43,110		$	43,110		$	—		$	7,958		$	5,060		$	13,018
Operating expenses	154			12,825			12,979			132			3,287			1,856			5,275
Net operating (loss) income	(154		)	30,285			30,131			(132		)	4,671			3,204			7,743
Depreciation	—			10,768			10,768			—			5,299			2,039			7,338
General and administrative/other	(3		)	26			23			—			1			122			123
Operating (loss) income	(151		)	19,491			19,340			(132		)	(629		)	1,043			282
Interest and other income	—			3			3			—			—			—			—
Other expenses	(76		)	(32		)	(108		)	—			—			—			—
Interest:
Expense incurred, net	—			(7,788		)	(7,788		)	—			(3,864		)	(926		)	(4,790		)
Amortization of deferred financing costs	—			(177		)	(177		)	—			—			(7		)	(7		)
(Loss) income before income and other taxes and (loss) from investments in unconsolidated entities	(227		)	11,497			11,270			(132		)	(4,493		)	110			(4,515		)
Income and other tax (expense) benefit	—			(45		)	(45		)	—			(7		)	—			(7		)
(Loss) from investments in unconsolidated entities	—			(879		)	(879		)	—			—			—			—
Net (loss) income	$	(227	)	$	10,573		$	10,346		$	(132	)	$	(4,500	)	$	110		$	(4,522	)

(1) Project and apartment unit counts exclude all uncompleted development projects until those projects are substantially completed.

(2) All debt is non-recourse to the Company with the exception of 50% of the current $22.0 million outstanding debt balance on one unconsolidated development project.

(3) Projects included here are substantially complete. However, they may still require additional exterior and interior work for all units to be available for leasing.

Note: The above tables exclude the Company's interests in unconsolidated joint ventures entered into with AVB in connection with the Archstone Transaction. These ventures own certain non-core Archstone assets that are held for sale and succeeded to certain residual Archstone liabilities, such as liability for various employment-related matters as well as responsibility for tax protection arrangements and third-party preferred interests in former Archstone subsidiaries. The preferred interests have an aggregate liquidation value of $76.8 million at June 30, 2014. The ventures are owned 60% by the Company and 40% by AVB.

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Equity, Capital and Other Interests EQR Common Shares (Details)	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Common Shares of beneficial interest, shares outstanding	361,562,007	360,479,260
Common Shares Issued:
Conversion of OP Units	56,536
Exercise of share options	851,514
Employee Share Purchase Plan (ESPP)	47,457
Restricted Share Grants Net	170,626
Conversion Of Restricted Shares To Ltip Units Shares	(12,146)
Stock Repurchased And Retired	(31,240)
Units
Common Shares And Units Outstanding	375,898,833
Units Ownership Interest in Operating Partnership	3.80%
Limited Partner [Member]
Limited Partners' Capital Account, Units Outstanding	14,336,826	14,180,376
Common Shares Issued:
Conversion of OP Units	(56,536)
Conversion Of Restricted Shares To Ltip Units Shares	12,146
Units
Issuance Of LTIPs	200,840

XML

Derivative and Other Fair Value Instruments (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Fair Value Hedging maturity date 2019 [Member]
Derivative [Line Items]
Current Notional Balance	$ 450,000
Lowest Possible Notional	450,000
Highest Possible Notional	450,000
Lowest Interest Rate	2.375%
Highest Interest Rate	2.375%
Forward Starting Swaps Fair Value Hedging maturity date 2025 [Member]
Derivative [Line Items]
Current Notional Balance	100,000
Lowest Possible Notional	100,000
Highest Possible Notional	$ 100,000
Lowest Interest Rate	3.14%
Highest Interest Rate	3.191%

XML

CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Investment in real estate
Land	$ 6,296,735	$ 6,192,512
Depreciable property	19,730,737	19,226,047
Projects under development	1,006,992	988,867
Land held for development	306,625	393,522
Real Estate Investment Property, at Cost	27,341,089	26,800,948
Real Estate Investment Property, Accumulated Depreciation	(5,170,438)	(4,807,709)
Investment in real estate, net	22,170,651	21,993,239
Cash and cash equivalents	76,132	53,534
Investments in unconsolidated entities	142,318	178,526
Deposits - restricted	84,408	103,567
Escrow deposits - mortgage	45,269	42,636
Deferred financing costs, net	63,441	58,486
Other assets	409,183	404,557
Total assets	22,991,402	22,834,545
Liabilities:
Mortgage notes payable	5,158,091	5,174,166
Notes, net	5,923,952	5,477,088
Lines of credit	0	115,000
Accounts payable and accrued expenses	168,225	118,791
Accrued interest payable	78,389	78,309
Other liabilities	331,662	347,748
Security deposits	74,508	71,592
Distributions payable	187,906	243,511
Total liabilities	11,922,733	11,626,205
Commitments and contingencies
Redeemable Noncontrolling Interests - Operating Partnership	440,050	363,144
Shareholders' equity:
Preferred Shares of beneficial interest, $0.01 par value; 100,000,000 shares authorized; 1,000,000 shares issued and outstanding as of June 30, 2014 and December 31, 2013	50,000	50,000
Common Shares of beneficial interest, $0.01 par value; 1,000,000,000 shares authorized; 361,562,007 shares issued and outstanding as of June 30, 2014 and 360,479,260 shares issued and outstanding as of December 31, 2013	3,616	3,605
Paid in capital	8,527,380	8,561,500
Retained earnings	1,875,732	2,047,258
Accumulated other comprehensive (loss)	(166,990)	(155,162)
Total shareholders' equity	10,289,738	10,507,201
Noncontrolling Interests:
Operating Partnership	213,038	211,412
Noncontrolling Interests - Partially Owned Properties	125,843	126,583
Total Noncontrolling Interests	338,881	337,995
Total equity	10,628,619	10,845,196
Total liabilities and equity	$ 22,991,402	$ 22,834,545

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Real Estate (Details) (USD $)	3 Months Ended		6 Months Ended		16 Months Ended		3 Months Ended		6 Months Ended									3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	16 Months Ended			3 Months Ended		6 Months Ended	16 Months Ended		6 Months Ended					3 Months Ended		6 Months Ended	12 Months Ended		6 Months Ended	12 Months Ended	6 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Retail Site [Member]	Jun. 30, 2013 Retail Site [Member]	Jun. 30, 2014 Retail Site [Member]	Jun. 30, 2013 Retail Site [Member]	Jun. 30, 2014 Assets [Member]	Dec. 31, 2013 Assets [Member]	Mar. 31, 2013 Assets [Member]	Jun. 30, 2014 Liability [Member]	Dec. 31, 2013 Liability [Member]	Mar. 31, 2013 Liability [Member]	Mar. 31, 2013 Consolidated Properties [Member]	Jun. 30, 2014 Ground Lease [Member]	Jun. 30, 2013 Ground Lease [Member]	Jun. 30, 2014 Ground Lease [Member]	Jun. 30, 2013 Ground Lease [Member]	Mar. 31, 2013 Archstone [Member]	Jun. 30, 2013 Archstone [Member]	Jun. 30, 2014 Archstone [Member]	Mar. 31, 2013 Building and Building Improvements [Member]	Mar. 31, 2013 Furniture and Fixtures [Member]	Jun. 30, 2013 Archstone Transaction [Member]	Mar. 31, 2013 Archstone Transaction [Member]	Jun. 30, 2013 Archstone Transaction [Member]	Jun. 30, 2014 Archstone Transaction [Member]	Mar. 31, 2013 Unconsolidated Properties [Member]	Jun. 30, 2013 Investment Banking and Legal/Accounting Fees [Member]	Jun. 30, 2014 Projects under development [Member]	Dec. 31, 2013 Projects under development [Member]	Jun. 30, 2014 Land held for development [Member]	Dec. 31, 2013 Land held for development [Member]	Mar. 31, 2013 Archstone Transaction [Member]	Jun. 30, 2013 OPERATING PARTNERSHIP	Jun. 30, 2013 OPERATING PARTNERSHIP	Dec. 31, 2012 Public Offering [Member]	Mar. 31, 2013 Term Loan [Member]	Jun. 30, 2014 Consolidated Rental Properties [Member]	Dec. 31, 2013 Consolidated Rental Properties [Member]	Jun. 30, 2014 Land [Member]
Land			$ 6,296,735,000		$ 6,296,735,000	$ 6,192,512,000
Property, Plant and Equipment, Gross [Abstract]
Investment Building and Building Improvements			17,920,222,000		17,920,222,000	17,509,609,000
Fixtures and Equipment, Gross			1,302,882,000		1,302,882,000	1,214,220,000
Finite-Lived Intangible Asset, Acquired-in-Place Leases			507,633,000		507,633,000	502,218,000
Land Under Development																																	391,156,000	353,574,000
Projects under development			1,006,992,000		1,006,992,000	988,867,000																											615,836,000	635,293,000	50,089,000	52,133,000
Land held for development			306,625,000		306,625,000	393,522,000																													256,536,000	341,389,000
Real Estate Investment Property, at Cost			27,341,089,000		27,341,089,000	26,800,948,000
Real Estate Investment Property, Accumulated Depreciation			(5,170,438,000)		(5,170,438,000)	(4,807,709,000)
Investment in real estate, net			22,170,651,000		22,170,651,000	21,993,239,000
Below Market Lease, Gross											178,251,000	178,251,000	178,251,000	5,270,000	5,500,000	8,040,000
Finite-Lived Intangible Asset, Off-market Lease, Favorable, Gross		1,260,000	1,260,000		1,260,000	1,260,000
Finite-Lived Intangible Assets, Gross			179,511,000		179,511,000	179,511,000
Amortization of Intangible Assets			(6,641,000)		(6,641,000)	(4,364,000)
Lease Intangible Assets, Net			172,870,000		172,870,000	175,147,000
Off-market Lease, Unfavorable														2,400,000	2,400,000	2,400,000
Lease Intangible Liabilities			7,670,000		7,670,000	7,900,000
Amortization Of Intangible Liabilities			(1,678,000)		(1,678,000)	(1,161,000)
Lease Intangible Liabilities, net			5,992,000		5,992,000	6,739,000
Amortization of Intangible Assets			1,530,000	1,216,000			300,000	100,000	600,000	200,000								1,100,000	1,000,000	2,200,000	1,400,000
Weighted Average Ground Lease Amortization Period			49.8		49.8
Weighted Average Retail Lease Amortization Period			2.8		2.8
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year			1,692,000		1,692,000		(469,000)		(469,000)									2,161,000		2,161,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months			3,382,000		3,382,000		(939,000)		(939,000)									4,321,000		4,321,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two			3,425,000		3,425,000		(896,000)		(896,000)									4,321,000		4,321,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three			3,781,000		3,781,000		(540,000)		(540,000)									4,321,000		4,321,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four			4,250,000		4,250,000		(71,000)		(71,000)									4,321,000		4,321,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five			4,250,000		4,250,000		(71,000)		(71,000)									4,321,000		4,321,000
Properties acquired			3																									71														3
Property Units Acquired			772																																		20,160					772
Partially Owned Properties Acquired Properties																												1
Partially Owned Units Acquired Units																												432
Partially Owned Unconsolidated Properties Acquired																												1
Partially Owned Unconsolidated Units Acquired																												336
Master Leased Properties Acquired																												3
Master Leased Units Acquired																												853
Uncompleted Development Properties Acquired																	2											4			2
Uncompleted Development Units Acquired																												964
Land parcels acquired																												14
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net																												8,968,389,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual																											151,900,000		204,500,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual																											103,900,000		140,000,000
Payments to Acquire Businesses, Net of Cash Acquired			0	4,000,875,000																		4,000,000,000
Mortgage notes payable			5,158,091,000		5,158,091,000	5,174,166,000																2,000,000,000
Issuance of Common Shares																																								21,850,000
Stock Issued During Period, Value, New Issues																																								1,200,000,000
Average Price Per Common Share Issued																																								$ 54.75
Noncash or Part Noncash Acquisition, Debt Assumed																						3,100,000,000
Mark-to-Market Debt Premiums		127,900,000
Proceeds From Sale Of Property			49,050,000																																							40,850,000	4,500,000,000	8,200,000
Term Loan Principal Amount																																									750,000,000
Number of Properties Subject to Ground Leases		9
Number of Real Estate Properties			397		397
Business Acquisition, Purchase Price Allocation, Land																						2,239,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment																									5,765,538,000	61,470,000
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets																						304,830,000
Business Combination Purchase Price Allocation Projects Under Development																						36,583,000
Business Combination Purchase Price Allocation Land Held for Development																						244,097,000
Business Combination Purchase Price Allocation Investments in Unconsolidated Entities																						230,608,000
Business Acquisition, Purchase Price Allocation, Other Assets																						195,260,000
Business Acquisition, Purchase Price Allocation, Other Liabilities																						(108,997,000)
Business Combination, Acquisition Related Costs			100,000	100,000																										100,900,000
Payments of Financing Costs			10,881,000	18,006,000																			2,500,000	13,500,000
Payments for Merger Related Costs				19,600,000	87,400,000																											19,600,000
Income Loss From Equity Method Investments Merger Expenses			6,200,000	53,000,000
Business Acquisition, Pro Forma Revenue	635,078,000			1,256,088,000																																		635,078,000	1,256,088,000
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax	96,585,000			60,541,000																																		96,585,000	60,541,000
Business Acquisition, Proforma Income Loss From Discontinued Operations Net Of Tax	389,329,000			1,608,374,000																																		389,329,000	1,608,374,000
Business Acquisition, Pro Forma Net Income (Loss)	485,914,000			1,668,915,000																																		485,914,000	1,668,915,000
Business Acquisition, Proforma Net Income Available to Common Shares	467,237,000			1,601,368,000
Business Acquisition, Proforma Net Income Available to Units																																						485,693,000	1,668,439,000
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 1.30			$ 4.45																																		$ 1.30	$ 4.45
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 1.29			$ 4.44																																		$ 1.29	$ 4.44
Business Acquisition, Proforma Weighted Average Common Shares Basic	359,653,000			359,509,000
Business Acquisition, Proforma Weighted Average Number Of Shares Diluted	375,910,000			375,722,000
Business Acquisition, Proforma Weighted Average Limited Partnership And General Partnership Units Outstanding Basic																																						373,403,000	373,245,000
Business Acquisition, Proforma Weighted Average Number Of Limited Partnership And General Partnership Unit Outstanding Diluted																																						375,910,000	375,722,000
Severance Costs																							$ 50,900,000

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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		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
REVENUES
Rental income	$ 649,766,000	$ 614,544,000	$ 1,280,491,000	$ 1,117,106,000
Fee and asset management	2,802,000	2,673,000	5,519,000	4,833,000
Total revenues	652,568,000	617,217,000	1,286,010,000	1,121,939,000
EXPENSES
Property and maintenance	115,388,000	113,501,000	240,961,000	212,030,000
Real estate taxes and insurance	83,055,000	76,742,000	165,149,000	141,837,000
Property management	20,555,000	22,031,000	42,673,000	44,520,000
Fee and asset management	1,378,000	1,577,000	3,040,000	3,223,000
Depreciation	190,136,000	323,304,000	375,303,000	519,526,000
General and administrative	13,752,000	16,085,000	31,328,000	32,580,000
Total expenses	424,264,000	553,240,000	858,454,000	953,716,000
Operating Income	228,304,000	63,977,000	427,556,000	168,223,000
Interest and other income	2,032,000	432,000	2,637,000	752,000
Other expenses	(1,533,000)	(1,631,000)	(2,190,000)	(23,350,000)
Interest:
Expense incurred, net	(115,924,000)	(122,950,000)	(228,973,000)	(317,417,000)
Amortization of deferred financing costs	(3,134,000)	(4,353,000)	(5,926,000)	(11,301,000)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain on sales of land parcels, discontinued operations and net gain on sales of real estate properties	109,745,000	(64,525,000)	193,104,000	(183,093,000)
Income and other tax (expense) benefit	(646,000)	(428,000)	(886,000)	(833,000)
(Loss) from investments in unconsolidated entities	(7,616,000)	(8,174,000)	(9,025,000)	(54,540,000)
Net gain on sales of land parcels	824,000	14,616,000	794,000	14,616,000
Income (loss) from continuing operations	102,307,000	(58,511,000)	183,987,000	(223,850,000)
Discontinued operations, net	510,000	395,243,000	1,562,000	1,621,616,000
Income before net gain on sales of real estate properties	102,817,000	336,732,000	185,549,000	1,397,766,000
Net gain on sales of real estate properties	14,903,000	0	14,903,000	0
Net income	117,720,000	336,732,000	200,452,000	1,397,766,000
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(588,000)	815,000	(1,092,000)	790,000
Net income attributable to controlling interests	112,690,000	324,759,000	191,825,000	1,342,445,000
Earnings per Unit - basic:
Income (loss) from continuing operations available to Units	$ 0.308	$ (0.157)	$ 0.522	$ (0.620)
Net income available to Units	$ 0.309	$ 0.900	$ 0.526	$ 3.844
Earnings per Unit - diluted:
Income (loss) from continuing operations available to Units	$ 0.307	$ (0.157)	$ 0.520	$ (0.620)
Net income available to Units	$ 0.308	$ 0.900	$ 0.524	$ 3.844
OPERATING PARTNERSHIP
REVENUES
Rental income	649,766,000	614,544,000	1,280,491,000	1,117,106,000
Fee and asset management	2,802,000	2,673,000	5,519,000	4,833,000
Total revenues	652,568,000	617,217,000	1,286,010,000	1,121,939,000
EXPENSES
Property and maintenance	115,388,000	113,501,000	240,961,000	212,030,000
Real estate taxes and insurance	83,055,000	76,742,000	165,149,000	141,837,000
Property management	20,555,000	22,031,000	42,673,000	44,520,000
Fee and asset management	1,378,000	1,577,000	3,040,000	3,223,000
Depreciation	190,136,000	323,304,000	375,303,000	519,526,000
General and administrative	13,752,000	16,085,000	31,328,000	32,580,000
Total expenses	424,264,000	553,240,000	858,454,000	953,716,000
Operating Income	228,304,000	63,977,000	427,556,000	168,223,000
Interest and other income	2,032,000	432,000	2,637,000	752,000
Other expenses	(1,533,000)	(1,631,000)	(2,190,000)	(23,350,000)
Interest:
Expense incurred, net	(115,924,000)	(122,950,000)	(228,973,000)	(317,417,000)
Amortization of deferred financing costs	(3,134,000)	(4,353,000)	(5,926,000)	(11,301,000)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain on sales of land parcels, discontinued operations and net gain on sales of real estate properties	109,745,000	(64,525,000)	193,104,000	(183,093,000)
Income and other tax (expense) benefit	(646,000)	(428,000)	(886,000)	(833,000)
(Loss) from investments in unconsolidated entities	(7,616,000)	(8,174,000)	(9,025,000)	(54,540,000)
Net gain on sales of land parcels	824,000	14,616,000	794,000	14,616,000
Income (loss) from continuing operations	102,307,000	(58,511,000)	183,987,000	(223,850,000)
Discontinued operations, net	510,000	395,243,000	1,562,000	1,621,616,000
Income before net gain on sales of real estate properties	102,817,000	336,732,000	185,549,000	1,397,766,000
Net gain on sales of real estate properties	14,903,000	0	14,903,000	0
Net income	117,720,000	336,732,000	200,452,000	1,397,766,000
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(588,000)	815,000	(1,092,000)	790,000
Net income attributable to controlling interests	117,132,000	337,547,000	199,360,000	1,398,556,000
ALLOCATION OF NET INCOME:
Preference Units	1,036,000	1,036,000	2,072,000	2,072,000
General Partner	111,654,000	323,723,000	189,753,000	1,340,373,000
Limited Partners	4,442,000	12,788,000	7,535,000	56,111,000
Net income available to Units	$ 116,096,000	$ 336,511,000	$ 197,288,000	$ 1,396,484,000
Earnings per Unit - basic:
Income (loss) from continuing operations available to Units	$ 0.308	$ (0.157)	$ 0.522	$ (0.620)
Net income available to Units	$ 0.309	$ 0.900	$ 0.526	$ 3.844
Weighted average Units outstanding	374,551	373,403	374,377	362,390
Earnings per Unit - diluted:
Income (loss) from continuing operations available to Units	$ 0.307	$ (0.157)	$ 0.520	$ (0.620)
Net income available to Units	$ 0.308	$ 0.900	$ 0.524	$ 3.844
Weighted average Units outstanding	377,118	373,403	376,780	362,390
Distributions declared per Unit outstanding	$ 0.50	$ 0.40	$ 1.00	$ 0.80

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Commitments and Contingencies (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
300 properties designed and built in violation of accessibility requirements	300
Projects in various stages of development	12
Units in various stages of development	3,871
Consolidated Project Under Development Commitment Fund	$ 1,000,000,000
Various stages of development with estimated completion dates ranging through September 30, 2016	Sep. 30, 2016
Number Of Apartments Units Under Development Unconsolidated Projects	176
Estimated completion period of project	Dec. 31, 2014
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	265,400,000
Investment in Joint Venture	327,900,000
Noncontrolling Interests - Partially Owned Properties	125,843,000	126,583,000
Company's Portion [Member]
Land purchase price	76,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	102,500,000
Joint Venture Partner [Member]
Land purchase price	57,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	75,700,000
Noncontrolling Interests - Partially Owned Properties	117,400,000
Unconsolidated Development Projects Held for and or Under Development [Domain]
Number Of Unconsolidated Projects	1
Parc on Powell (formerly 1333 Powell) [Domain]
Guarantor Obligations, Maximum Exposure	$ 19,700,000

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2014

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

The following tables set forth the computation of net income per share – basic and net income per share – diluted for the Company (amounts in thousands except per share amounts):

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Numerator for net income per share – basic:
Income (loss) from continuing operations	$	183,987		$	(223,850	)	$	102,307		$	(58,511	)
Allocation to Noncontrolling Interests – Operating Partnership, net	(7,475		)	9,078			(4,422		)	2,231
Net gain on sales of real estate properties	14,903			—			14,903			—
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)	790			(588		)	815
Preferred distributions	(2,072		)	(2,072		)	(1,036		)	(1,036		)
Income (loss) from continuing operations available to Common Shares, net of Noncontrolling Interests	188,251			(216,054		)	111,164			(56,501		)
Discontinued operations, net of Noncontrolling Interests	1,502			1,556,427			490			380,224
Numerator for net income per share – basic	$	189,753		$	1,340,373		$	111,654		$	323,723
Numerator for net income per share – diluted (1):
Income from continuing operations	$	183,987					$	102,307
Net gain on sales of real estate properties	14,903						14,903
Net (income) attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)				(588		)
Preferred distributions	(2,072		)				(1,036		)
Income from continuing operations available to Common Shares	195,726						115,586
Discontinued operations, net	1,562						510
Numerator for net income per share – diluted (1)	$	197,288		$	1,340,373		$	116,096		$	323,723
Denominator for net income per share – basic and diluted (1):
Denominator for net income per share – basic	360,641			348,654			360,809			359,653
Effect of dilutive securities:
OP Units	13,736						13,742
Long-term compensation shares/units	2,403						2,567
Denominator for net income per share – diluted (1)	376,780			348,654			377,118			359,653
Net income per share – basic	$	0.53		$	3.84		$	0.31		$	0.90
Net income per share – diluted	$	0.52		$	3.84		$	0.31		$	0.90
Net income per share – basic:
Income (loss) from continuing operations available to Common Shares, net of Noncontrolling Interests	$	0.522		$	(0.620	)	$	0.308		$	(0.157	)
Discontinued operations, net of Noncontrolling Interests	0.004			4.464			0.001			1.057
Net income per share – basic	$	0.526		$	3.844		$	0.309		$	0.900
Net income per share – diluted (1):
Income (loss) from continuing operations available to Common Shares	$	0.520		$	(0.620	)	$	0.307		$	(0.157	)
Discontinued operations, net	0.004			4.464			0.001			1.057
Net income per share – diluted	$	0.524		$	3.844		$	0.308		$	0.900

(1) Potential common shares issuable from the assumed conversion of OP Units and the exercise/vesting of long-term compensation shares/units are automatically anti-dilutive and therefore excluded from the diluted earnings per share calculation as the Company had a loss from continuing operations for the six months and quarter ended June 30, 2013.

Operating Partnership [Member]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

The following tables set forth the computation of net income per Unit – basic and net income per Unit – diluted for the Operating Partnership (amounts in thousands except per Unit amounts):

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Numerator for net income per Unit – basic and diluted (1):
Income (loss) from continuing operations	$	183,987		$	(223,850	)	$	102,307		$	(58,511	)
Net gain on sales of real estate properties	14,903			—			14,903			—
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)	790			(588		)	815
Allocation to Preference Units	(2,072		)	(2,072		)	(1,036		)	(1,036		)
Income (loss) from continuing operations available to Units	195,726			(225,132		)	115,586			(58,732		)
Discontinued operations, net	1,562			1,621,616			510			395,243
Numerator for net income per Unit – basic and diluted (1)	$	197,288		$	1,396,484		$	116,096		$	336,511
Denominator for net income per Unit – basic and diluted (1):
Denominator for net income per Unit - basic	374,377			362,390			374,551			373,403
Effect of dilutive securities:
Dilution for Units issuable upon assumed exercise/vesting of the    Company’s long-term compensation shares/units	2,403						2,567
Denominator for net income per Unit – diluted (1)	376,780			362,390			377,118			373,403
Net income per Unit – basic	$	0.53		$	3.84		$	0.31		$	0.90
Net income per Unit – diluted	$	0.52		$	3.84		$	0.31		$	0.90
Net income per Unit – basic:
Income (loss) from continuing operations available to Units	$	0.522		$	(0.620	)	$	0.308		$	(0.157	)
Discontinued operations, net	0.004			4.464			0.001			1.057
Net income per Unit – basic	$	0.526		$	3.844		$	0.309		$	0.900
Net income per Unit – diluted (1):
Income (loss) from continuing operations available to Units	$	0.520		$	(0.620	)	$	0.307		$	(0.157	)
Discontinued operations, net	0.004			4.464			0.001			1.057
Net income per Unit – diluted	$	0.524		$	3.844		$	0.308		$	0.900

(1) Potential Units issuable from the assumed exercise/vesting of the Company's long-term compensation shares/units are automatically anti-dilutive and therefore excluded from the diluted earnings per Unit calculation as the Operating Partnership had a loss from continuing operations for the six months and quarter ended June 30, 2013.

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Earnings Per Share

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Earnings Per Share And Earnings Per Unit [Text Block]

10.    Earning Per Share and Earnings Per Unit

Equity Residential

The following tables set forth the computation of net income per share – basic and net income per share – diluted for the Company (amounts in thousands except per share amounts):

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Numerator for net income per share – basic:
Income (loss) from continuing operations	$	183,987		$	(223,850	)	$	102,307		$	(58,511	)
Allocation to Noncontrolling Interests – Operating Partnership, net	(7,475		)	9,078			(4,422		)	2,231
Net gain on sales of real estate properties	14,903			—			14,903			—
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)	790			(588		)	815
Preferred distributions	(2,072		)	(2,072		)	(1,036		)	(1,036		)
Income (loss) from continuing operations available to Common Shares, net of Noncontrolling Interests	188,251			(216,054		)	111,164			(56,501		)
Discontinued operations, net of Noncontrolling Interests	1,502			1,556,427			490			380,224
Numerator for net income per share – basic	$	189,753		$	1,340,373		$	111,654		$	323,723
Numerator for net income per share – diluted (1):
Income from continuing operations	$	183,987					$	102,307
Net gain on sales of real estate properties	14,903						14,903
Net (income) attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)				(588		)
Preferred distributions	(2,072		)				(1,036		)
Income from continuing operations available to Common Shares	195,726						115,586
Discontinued operations, net	1,562						510
Numerator for net income per share – diluted (1)	$	197,288		$	1,340,373		$	116,096		$	323,723
Denominator for net income per share – basic and diluted (1):
Denominator for net income per share – basic	360,641			348,654			360,809			359,653
Effect of dilutive securities:
OP Units	13,736						13,742
Long-term compensation shares/units	2,403						2,567
Denominator for net income per share – diluted (1)	376,780			348,654			377,118			359,653
Net income per share – basic	$	0.53		$	3.84		$	0.31		$	0.90
Net income per share – diluted	$	0.52		$	3.84		$	0.31		$	0.90
Net income per share – basic:
Income (loss) from continuing operations available to Common Shares, net of Noncontrolling Interests	$	0.522		$	(0.620	)	$	0.308		$	(0.157	)
Discontinued operations, net of Noncontrolling Interests	0.004			4.464			0.001			1.057
Net income per share – basic	$	0.526		$	3.844		$	0.309		$	0.900
Net income per share – diluted (1):
Income (loss) from continuing operations available to Common Shares	$	0.520		$	(0.620	)	$	0.307		$	(0.157	)
Discontinued operations, net	0.004			4.464			0.001			1.057
Net income per share – diluted	$	0.524		$	3.844		$	0.308		$	0.900

(1) Potential common shares issuable from the assumed conversion of OP Units and the exercise/vesting of long-term compensation shares/units are automatically anti-dilutive and therefore excluded from the diluted earnings per share calculation as the Company had a loss from continuing operations for the six months and quarter ended June 30, 2013.

ERP Operating Limited Partnership

The following tables set forth the computation of net income per Unit – basic and net income per Unit – diluted for the Operating Partnership (amounts in thousands except per Unit amounts):

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
Numerator for net income per Unit – basic and diluted (1):
Income (loss) from continuing operations	$	183,987		$	(223,850	)	$	102,307		$	(58,511	)
Net gain on sales of real estate properties	14,903			—			14,903			—
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,092		)	790			(588		)	815
Allocation to Preference Units	(2,072		)	(2,072		)	(1,036		)	(1,036		)
Income (loss) from continuing operations available to Units	195,726			(225,132		)	115,586			(58,732		)
Discontinued operations, net	1,562			1,621,616			510			395,243
Numerator for net income per Unit – basic and diluted (1)	$	197,288		$	1,396,484		$	116,096		$	336,511
Denominator for net income per Unit – basic and diluted (1):
Denominator for net income per Unit - basic	374,377			362,390			374,551			373,403
Effect of dilutive securities:
Dilution for Units issuable upon assumed exercise/vesting of the    Company’s long-term compensation shares/units	2,403						2,567
Denominator for net income per Unit – diluted (1)	376,780			362,390			377,118			373,403
Net income per Unit – basic	$	0.53		$	3.84		$	0.31		$	0.90
Net income per Unit – diluted	$	0.52		$	3.84		$	0.31		$	0.90
Net income per Unit – basic:
Income (loss) from continuing operations available to Units	$	0.522		$	(0.620	)	$	0.308		$	(0.157	)
Discontinued operations, net	0.004			4.464			0.001			1.057
Net income per Unit – basic	$	0.526		$	3.844		$	0.309		$	0.900
Net income per Unit – diluted (1):
Income (loss) from continuing operations available to Units	$	0.520		$	(0.620	)	$	0.307		$	(0.157	)
Discontinued operations, net	0.004			4.464			0.001			1.057
Net income per Unit – diluted	$	0.524		$	3.844		$	0.308		$	0.900

(1) Potential Units issuable from the assumed exercise/vesting of the Company's long-term compensation shares/units are automatically anti-dilutive and therefore excluded from the diluted earnings per Unit calculation as the Operating Partnership had a loss from continuing operations for the six months and quarter ended June 30, 2013.

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Discontinued Operations (Tables)

6 Months Ended

Jun. 30, 2014

Discontinued Operations and Disposal Groups [Abstract]

Components of discontinued operations

The components of discontinued operations are outlined below and include the results of operations for the respective periods that the Company owned such assets for properties sold in 2013 and prior years during the six months and quarters ended June 30, 2014 and 2013 (amounts in thousands).

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
REVENUES
Rental income	$	1,275		$	107,956		$	252		$	26,174
Total revenues	1,275			107,956			252			26,174
EXPENSES (1)
Property and maintenance	(41		)	31,449			(89		)	11,025
Real estate taxes and insurance	(6		)	10,867			(19		)	2,273
Property management	—			1			—			—
Depreciation	—			30,962			—			7,146
General and administrative	51			73			46			65
Total expenses	4			73,352			(62		)	20,509
Discontinued operating income	1,271			34,604			314			5,665
Interest and other income	80			90			45			38
Other expenses	—			(3		)	—			(1		)
Interest (2):
Expense incurred, net	—			(1,258		)	—			(6		)
Amortization of deferred financing costs	—			(228		)	—			—
Income and other tax (expense) benefit	(13		)	(463		)	(2		)	(405		)
Discontinued operations	1,338			32,742			357			5,291
Net gain on sales of discontinued operations	224			1,588,874			153			389,952
Discontinued operations, net	$	1,562		$	1,621,616		$	510		$	395,243

(1) Includes expenses paid in the current period for properties sold in prior periods related to the Company’s period of ownership.

(2) Includes only interest expense specific to secured mortgage notes payable for properties sold.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2014

Commitments and Contingencies [Abstract]

Commitments and Contingencies

12. Commitments and Contingencies

The Company, as an owner of real estate, is subject to various Federal, state and local environmental laws. Compliance by the Company with existing laws has not had a material adverse effect on the Company. However, the Company cannot predict the impact of new or changed laws or regulations on its current properties or on properties that it may acquire in the future.

The Company is party to a housing discrimination lawsuit brought by a non-profit civil rights organization in April 2006 in the U.S. District Court for the District of Maryland. The suit alleges that the Company designed and built approximately 300 of its properties in violation of the accessibility requirements of the Fair Housing Act and Americans With Disabilities Act. The suit seeks actual and punitive damages, injunctive relief (including modification of non-compliant properties), costs and attorneys' fees. The Company believes it has a number of viable defenses, including that a majority of the named properties were completed before the operative dates of the statutes in question and/or were not designed or built by the Company. Accordingly, the Company is defending the suit vigorously. Due to the pendency of the Company’s defenses and the uncertainty of many other critical factual and legal issues, it is not possible to determine or predict the outcome of the suit or a possible loss or a range of loss, and no amounts have been accrued at June 30, 2014. While no assurances can be given, the Company does not believe that the suit, if adversely determined, would have a material adverse effect on the Company.

The Company does not believe there is any other litigation pending or threatened against it that, individually or in the aggregate, may reasonably be expected to have a material adverse effect on the Company.

As of June 30, 2014, the Company has 12 consolidated projects (including Prism at Park Avenue South in New York City which the Company is jointly developing with Toll Brothers that is discussed below) totaling 3,871 apartment units in various stages of development with commitments to fund of approximately $1.0 billion and estimated completion dates ranging through September 30, 2016, as well as other completed development projects that are in various stages of lease up or are stabilized. Some of the projects are being developed solely by the Company, while others are being co-developed with various third party development partners. The development venture agreements with these partners are primarily deal-specific, with differing terms regarding profit-sharing, equity contributions, returns on investment, buy-sell agreements and other customary provisions. The Company is the "general" or "managing" partner of the development ventures.

As of June 30, 2014, the Company has one unconsolidated project totaling 176 apartment units under development with an estimated completion date of December 31, 2014, as well as other completed development projects that are in various stages of lease up or are stabilized. These projects are all being co-developed with various third party development partners. The development venture agreements with these partners are primarily deal-specific, with differing terms regarding profit-sharing, equity contributions, returns on investment, buy-sell agreements and other customary provisions. The Company currently has no further funding obligations for Domain, Nexus Sawgrass and San Norterra. While the Company is the managing member of the Domain and Nexus Sawgrass joint ventures, was responsible for constructing both projects and has given certain construction cost overrun guarantees, the joint venture partner has significant participating rights and has active involvement in and oversight of the ongoing projects. The Domain and Nexus Sawgrass buy-sell arrangements contain provisions that provide the right, but not the obligation, for the Company to acquire the partner’s interests or sell its interests at any time following the occurrence of certain pre-defined events (including at stabilization) described in the development venture agreements. The respective partner for San Norterra and Parc on Powell (formerly known as 1333 Powell) is the “general” or “managing” partner of the development venture and the Company does not have substantive kick-out or participating rights. The Company has given a repayment guaranty on the construction loan for Parc on Powell of 50% of the outstanding balance, up to a maximum of $19.7 million, and has given certain construction cost overrun guarantees.

In December 2011, the Company and Toll Brothers (NYSE: TOL) jointly acquired a vacant land parcel at 400 Park Avenue South in New York City. The Company's and Toll Brothers' allocated portions of the purchase price were approximately $76.1 million and $57.9 million, respectively. The Company is the managing member and Toll Brothers does not have substantive kick-out or participating rights. Until the core and shell of the building is complete, the building and land will be owned jointly and are required to be consolidated on the Company's balance sheet. Thereafter, the Company will solely own and control the rental portion of the building (floors 2-22) and Toll Brothers will solely own and control the for sale portion of the building (floors 23-40). Once the core and shell are complete, the Toll Brothers' portion of the property will be deconsolidated from the Company's balance sheet. The acquisition was financed through contributions by the Company and Toll Brothers of approximately $102.5 million and $75.7 million, respectively, which included the land purchase noted above, restricted deposits and taxes and fees. As of June 30, 2014, the Company's and Toll Brothers' consolidated contributions to the joint venture were approximately $327.9 million, of which Toll Brothers' noncontrolling interest balance totaled $117.4 million.

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net income	$ 117,720	$ 336,732	$ 200,452	$ 1,397,766
Other comprehensive (loss) income – derivative instruments:
Unrealized holding (losses) gains arising during the period	(9,929)	9,523	(21,881)	12,337
Losses reclassified into earnings from other comprehensive income	4,206	3,826	8,335	12,098
Other comprehensive income – other instruments:
Unrealized holding gains arising during the period	0	501	0	928
Other comprehensive income – foreign currency:
Currency translation adjustments arising during the period	1,627	1,814	1,718	941
Other comprehensive (loss) income	(4,096)	15,664	(11,828)	26,304
Comprehensive income	113,624	352,396	188,624	1,424,070
Comprehensive (income) attributable to Noncontrolling Interests	(4,873)	(12,568)	(8,175)	(56,342)
Comprehensive income attributable to controlling interests	$ 108,751	$ 339,828	$ 180,449	$ 1,367,728

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (Unaudited) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Shareholders' equity:
Preferred Shares of beneficial interest, par value	$ 0.01	$ 0.01
Preferred Shares of beneficial interest, shares authorized	100,000,000	100,000,000
Preferred Shares of beneficial interest, shares issued	1,000,000	1,000,000
Preferred Shares of beneficial interest, shares outstanding	1,000,000	1,000,000
Common Shares of beneficial interest, par value	$ 0.01	$ 0.01
Common Shares of beneficial interest, shares authorized	1,000,000,000	1,000,000,000
Common Shares of beneficial interest, shares issued	361,562,007	360,479,260
Common Shares of beneficial interest, shares outstanding	361,562,007	360,479,260

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Commitments to Acquire/Dispose of Real Estate

6 Months Ended

Jun. 30, 2014

Commitments to Acquire Dispose of Real Estate [Abstract]

Commitments To Acquire Dispose Of Real Estate Text Block

5. Commitments to Acquire/Dispose of Real Estate

In addition to the land parcel that was subsequently acquired as discussed in Note 14, the Company has entered into a separate agreement to acquire the following (purchase price in thousands):

	Properties	Apartment Units	Purchase Price
Land Parcel	—	—	$	3,300
Total	—	—	$	3,300

The Company has entered into separate agreements to dispose of the following (sales price in thousands):

	Properties	Apartment Units	Sales Price
Rental Properties	6	2,005	$	306,350
Land Parcel	—	—	54,402
Total	6	2,005	$	360,752

The closings of these pending transactions are subject to certain conditions and restrictions, therefore, there can be no assurance that these transactions will be consummated or that the final terms will not differ in material respects from those summarized in the preceding paragraphs.

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Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 31, 2014
Entity Registrant Name	EQUITY RESIDENTIAL
Entity Central Index Key	0000906107
Document Type	10-Q
Document Period End Date	Jun. 30, 2014
Amendment Flag	false
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		361,742,672
OPERATING PARTNERSHIP
Entity Registrant Name	ERP OPERATING LIMITED PARTNERSHIP
Entity Central Index Key	0000931182
Document Type	10-Q
Document Period End Date	Jun. 30, 2014
Amendment Flag	false
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer

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Investments in Partially Owned Entities

6 Months Ended

Jun. 30, 2014

Investments in Partially Owned Entities [Abstract]

Investments in Partially Owned Entities

6. Investments in Partially Owned Entities

The Company has co-invested in various properties with unrelated third parties which are either consolidated or accounted for under the equity method of accounting (unconsolidated). The following tables and information summarize the Company’s investments in partially owned entities as of June 30, 2014 (amounts in thousands except for project and apartment unit amounts):

	Consolidated								Unconsolidated
	Development Projects								Development Projects
	Held for and/or Under Development		Operating			Total			Held for and/or Under Development		Completed, Not Stabilized (3)			Operating			Total
Total projects (1)	—		19			19			—		2			2			4
Total apartment units (1)	—		3,752			3,752			—		945			724			1,669
Balance sheet information at 6/30/14 (at 100%):
ASSETS
Investment in real estate	$	329,668	$	676,848		$	1,006,516		$	55,998	$	233,411		$	108,164		$	397,573
Accumulated depreciation	—		(183,571		)	(183,571		)	—		(6,693		)	(7,136		)	(13,829		)
Investment in real estate, net	329,668		493,277			822,945			55,998		226,718			101,028			383,744
Cash and cash equivalents	4,488		14,125			18,613			454		2,830			1,582			4,866
Investments in unconsolidated entities	—		53,209			53,209			—		—			—			—
Deposits – restricted	34,761		250			35,011			—		130			47			177
Deferred financing costs, net	—		2,318			2,318			53		4			122			179
Other assets	6,679		26,176			32,855			14		41			1,250			1,305
Total assets	$	375,596	$	589,355		$	964,951		$	56,519	$	229,723		$	104,029		$	390,271
LIABILITIES AND EQUITY/CAPITAL
Mortgage notes payable (2)	$	—	$	360,305		$	360,305		$	21,982	$	145,016		$	63,305		$	230,303
Accounts payable & accrued expenses	12,313		1,730			14,043			5,095		955			350			6,400
Accrued interest payable	—		1,265			1,265			43		687			42			772
Other liabilities	140		1,252			1,392			—		244			1,046			1,290
Security deposits	—		1,916			1,916			—		279			140			419
Total liabilities	12,453		366,468			378,921			27,120		147,181			64,883			239,184
Noncontrolling Interests – Partially Owned Properties/Partners' equity	117,677		8,166			125,843			27,858		70,428			23,434			121,720
Company equity/General and Limited Partners' Capital	245,466		214,721			460,187			1,541		12,114			15,712			29,367
Total equity/capital	363,143		222,887			586,030			29,399		82,542			39,146			151,087
Total liabilities and equity/capital	$	375,596	$	589,355		$	964,951		$	56,519	$	229,723		$	104,029		$	390,271

	Consolidated									Unconsolidated
	Development Projects									Development Projects
	Held for and/or Under Development									Held for and/or Under Development						Operating
													Completed, Not Stabilized (3)
				Operating			Total												Total
Operating information for the six months ended 6/30/14 (at 100%):
Operating revenue	$	—		$	43,110		$	43,110		$	—		$	7,958		$	5,060		$	13,018
Operating expenses	154			12,825			12,979			132			3,287			1,856			5,275
Net operating (loss) income	(154		)	30,285			30,131			(132		)	4,671			3,204			7,743
Depreciation	—			10,768			10,768			—			5,299			2,039			7,338
General and administrative/other	(3		)	26			23			—			1			122			123
Operating (loss) income	(151		)	19,491			19,340			(132		)	(629		)	1,043			282
Interest and other income	—			3			3			—			—			—			—
Other expenses	(76		)	(32		)	(108		)	—			—			—			—
Interest:
Expense incurred, net	—			(7,788		)	(7,788		)	—			(3,864		)	(926		)	(4,790		)
Amortization of deferred financing costs	—			(177		)	(177		)	—			—			(7		)	(7		)
(Loss) income before income and other taxes and (loss) from investments in unconsolidated entities	(227		)	11,497			11,270			(132		)	(4,493		)	110			(4,515		)
Income and other tax (expense) benefit	—			(45		)	(45		)	—			(7		)	—			(7		)
(Loss) from investments in unconsolidated entities	—			(879		)	(879		)	—			—			—			—
Net (loss) income	$	(227	)	$	10,573		$	10,346		$	(132	)	$	(4,500	)	$	110		$	(4,522	)

(1) Project and apartment unit counts exclude all uncompleted development projects until those projects are substantially completed.

(2) All debt is non-recourse to the Company with the exception of 50% of the current $22.0 million outstanding debt balance on one unconsolidated development project.

(3) Projects included here are substantially complete. However, they may still require additional exterior and interior work for all units to be available for leasing.

Note: The above tables exclude the Company's interests in unconsolidated joint ventures entered into with AVB in connection with the Archstone Transaction. These ventures own certain non-core Archstone assets that are held for sale and succeeded to certain residual Archstone liabilities, such as liability for various employment-related matters as well as responsibility for tax protection arrangements and third-party preferred interests in former Archstone subsidiaries. The preferred interests have an aggregate liquidation value of $76.8 million at June 30, 2014. The ventures are owned 60% by the Company and 40% by AVB.

The Company is the controlling partner in various consolidated partnership properties and development properties having a noncontrolling interest book value of $125.8 million at June 30, 2014. The Company does not have any VIEs.

Archstone Acquisition

On February 27, 2013, in conjunction with the Archstone Acquisition, the Company acquired interests in several joint ventures. Details of these interests follow by project:

East Palmetto Park – This venture was formed to ultimately develop certain land parcels into a 377 unit apartment building located in Boca Raton, Florida. The Company has a 90% equity interest with an initial basis of $20.2 million. The Company is the managing member, is responsible for constructing the project and its partner does not have substantive kick-out or participating rights. As a result, the entity is required to be consolidated on the Company's balance sheet.

Wisconsin Place – This project contains a mixed-use site located in Chevy Chase, Maryland consisting of residential, retail, office and accessory uses, including underground parking facilities. The Company has a 75% equity interest with an initial basis of $198.5 million in the 432 unit residential component. The Company is the managing member, was responsible for constructing the residential project and its partner does not have substantive kick-out or participating rights. As a result, the entity that owns the residential component of this mixed-use site is required to be consolidated on the Company's balance sheet. Such entity also retains an unconsolidated interest in an entity that owns the land underlying the entire project and owns and operates the parking facility. The initial fair value of this investment is $56.5 million. The Company does not have any ownership interest in the retail and office components.

San Norterra – This venture developed certain land parcels into a 388 unit apartment building located in Phoenix, Arizona and was completed and stabilized during the quarter ended June 30, 2014. The Company has an 85% equity interest with an initial basis of $16.9 million. Total project costs were approximately $52.8 million and construction was partially funded with a construction loan that was guaranteed by the partner and non-recourse to the Company. The loanhas a maximum debt commitment of $34.8 million and a current unconsolidated outstanding balance of $33.0 million; the loan bears interest at LIBOR plus 2.00% and matures January 6, 2015. The partner is the managing member and developed the project. The Company does not have substantive kick-out or participating rights. As a result, the entity is unconsolidated and recorded using the equity method of accounting.

Waterton Tenside – This venture was formed to develop and operate a 336 unit apartment property located in Atlanta, Georgia. The Company has a 20% equity interest with an initial basis of $5.1 million. The partner is the managing member and developed the project. The project is encumbered by a non-recourse mortgage loan that has a current outstanding balance of $30.3 million, bears interest at 3.66% and matures December 1, 2018. The Company does not have substantive kick-out or participating rights. As a result, the entity is unconsolidated and recorded using the equity method of accounting.

Parc on Powell (formerly known as 1333 Powell) – This venture is currently developing certain land parcels into a 176 unit apartment building located in Emeryville, California. The Company has a 5% equity interest with an initial obligation of approximately $2.1 million. Total project costs are expected to be approximately $75.0 million and construction is being partially funded with a construction loan. The loan has a maximum debt commitment of $39.5 million and a current unconsolidated outstanding balance of $22.0 million; the loan bears interest at LIBOR plus 2.25% and matures August 14, 2015. The Company has given a repayment guaranty on the construction loan of 50% of the outstanding balance, up to a maximum of $19.7 million, and has given certain construction cost overrun guarantees. The partner is the managing member. The Company does not have substantive kick-out or participating rights. As a result, the entity is unconsolidated and recorded using the equity method of accounting.

On February 27, 2013, in connection with the Archstone Acquisition, subsidiaries of the Company and AVB entered into three limited liability company agreements (collectively, the “Residual JV”). The Residual JV owns certain non-core Archstone assets, such as interests in a six property portfolio of apartment buildings and succeeded to certain residual Archstone liabilities, such as liability for various employment-related matters. The Residual JV is owned 60% by the Company and 40% by AVB and the Company's initial investment was $147.6 million. The Residual JV is managed by a Management Committee consisting of two members from each of the Company and AVB. Both partners have equal participation in the Management Committee and all significant participating rights are shared by both partners. As a result, the Residual JV is unconsolidated and recorded using the equity method of accounting.

During the six months ended June 30, 2014, the Company closed on the sale of its unconsolidated interest in the German portfolio fund and the German management company, representing the sale of the majority of the remaining German real estate assets that were acquired by the Residual JV as part of the Archstone Acquisition. The Company's pro rata share of the proceeds/distributions that have been repatriated to the Residual JV and received by the Company as a result of the German dispositions was approximately $64.7 million during the six months ended June 30, 2014 and $83.6 million cumulatively since the closing of the Archstone Acquisition.

On February 27, 2013, in connection with the Archstone Acquisition, a subsidiary of the Company and AVB entered into a limited liability company agreement (the “Legacy JV”), through which they assumed obligations of Archstone in the form of preferred interests, some of which are governed by tax protection arrangements. During the year ended December 31, 2013, the Company purchased with AVB $65.0 million (of which the Company's 60% share was $39.0 million) of the preferred interests assumed by Legacy JV. At June 30, 2014, the remaining preferred interests have an aggregate liquidation value of $76.8 million, our share of which is included in other liabilities in the accompanying consolidated balance sheets. Obligations of the Legacy JV are borne 60% by the Company and 40% by AVB. The Legacy JV is managed by a Management Committee consisting of two members from each of the Company and AVB. Both partners have equal participation in the Management Committee and all significant participating rights are shared by both partners. As a result, the Legacy JV is unconsolidated and recorded using the equity method of accounting.

Other

In December 2011, the Company and Toll Brothers (NYSE: TOL) jointly acquired a vacant land parcel at 400 Park Avenue South in New York City. The Company's and Toll Brothers' allocated portions of the purchase price were approximately $76.1 million and $57.9 million, respectively. The Company is the managing member and Toll Brothers does not have substantive kick-out or participating rights. Until the core and shell of the building is complete, the building and land will be owned jointly and are required to be consolidated on the Company's balance sheet. Thereafter, the Company will solely own and control the rental portion of the building (floors 2-22) and Toll Brothers will solely own and control the for sale portion of the building (floors 23-40). Once the core and shell are complete, the Toll Brothers' portion of the property will be deconsolidated from the Company's balance sheet. The acquisition was financed through contributions by the Company and Toll Brothers of approximately $102.5 million and $75.7 million, respectively, which included the land purchase noted above, restricted deposits and taxes and fees. As of June 30, 2014, the Company's and Toll Brothers' consolidated contributions to the joint venture were approximately $327.9 million, of which Toll Brothers' noncontrolling interest balance totaled $117.4 million.

The Company admitted an 80% institutional partner to two separate entities/transactions (Nexus Sawgrass in December 2010 and Domain in August 2011), each owning a developable land parcel, in exchange for $40.1 million in cash and retained a 20% equity interest in both of these entities. These projects are now unconsolidated. Details of these projects follow:

• Nexus Sawgrass – This development project is substantially complete. Total project costs are expected to be approximately $79.0 million and construction was predominantly funded with a long-term, non-recourse secured loan from the partner. The mortgage loan has a maximum debt commitment of $48.7 million and a current unconsolidated outstanding balance of $48.6 million; the loan bears interest at 5.60% and matures January 1, 2021.

• Domain – This development project is substantially complete. Total project costs are expected to be approximately $155.8 million and construction was predominantly funded with a long-term, non-recourse secured loan from the partner. The mortgage loan has a maximum debt commitment of $98.6 million and a current unconsolidated outstanding balance of $96.4 million; the loan bears interest at 5.75% and matures January 1, 2022.

While the Company is the managing member of both of the joint ventures, was responsible for constructing both of the projects and has given certain construction cost overrun guarantees, the joint venture partner has significant participating rights and has active involvement in and oversight of the ongoing projects. The Company currently has no further funding obligations related to these projects.

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CONSOLIDATED BALANCE SHEETS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Investment in real estate
Land	$ 6,296,735	$ 6,192,512
Depreciable property	19,730,737	19,226,047
Projects under development	1,006,992	988,867
Land held for development	306,625	393,522
Real Estate Investment Property, at Cost	27,341,089	26,800,948
Real Estate Investment Property, Accumulated Depreciation	(5,170,438)	(4,807,709)
Investment in real estate, net	22,170,651	21,993,239
Cash and cash equivalents	76,132	53,534
Investments in unconsolidated entities	142,318	178,526
Deposits - restricted	84,408	103,567
Escrow deposits - mortgage	45,269	42,636
Deferred financing costs, net	63,441	58,486
Other assets	409,183	404,557
Total assets	22,991,402	22,834,545
Liabilities:
Mortgage notes payable	5,158,091	5,174,166
Notes, net	5,923,952	5,477,088
Lines of credit	0	115,000
Accounts payable and accrued expenses	168,225	118,791
Accrued interest payable	78,389	78,309
Other liabilities	331,662	347,748
Security deposits	74,508	71,592
Distributions payable	187,906	243,511
Total liabilities	11,922,733	11,626,205
Commitments and contingencies
Partners’ Capital:
Accumulated other comprehensive (loss)	(166,990)	(155,162)
Noncontrolling Interests - Partially Owned Properties	125,843	126,583
Total liabilities and equity	22,991,402	22,834,545
OPERATING PARTNERSHIP
Investment in real estate
Land	6,296,735	6,192,512
Depreciable property	19,730,737	19,226,047
Projects under development	1,006,992	988,867
Land held for development	306,625	393,522
Real Estate Investment Property, at Cost	27,341,089	26,800,948
Real Estate Investment Property, Accumulated Depreciation	(5,170,438)	(4,807,709)
Investment in real estate, net	22,170,651	21,993,239
Cash and cash equivalents	76,132	53,534
Investments in unconsolidated entities	142,318	178,526
Deposits - restricted	84,408	103,567
Escrow deposits - mortgage	45,269	42,636
Deferred financing costs, net	63,441	58,486
Other assets	409,183	404,557
Total assets	22,991,402	22,834,545
Liabilities:
Mortgage notes payable	5,158,091	5,174,166
Notes, net	5,923,952	5,477,088
Lines of credit	0	115,000
Accounts payable and accrued expenses	168,225	118,791
Accrued interest payable	78,389	78,309
Other liabilities	331,662	347,748
Security deposits	74,508	71,592
Distributions payable	187,906	243,511
Total liabilities	11,922,733	11,626,205
Commitments and contingencies
Redeemable Limited Partners	440,050	363,144
Partners’ Capital:
Preferred Units, Preferred Partners' Capital Accounts	50,000	50,000
General Partner	10,406,728	10,612,363
Limited Partners	213,038	211,412
Accumulated other comprehensive (loss)	(166,990)	(155,162)
Total partners’ capital	10,502,776	10,718,613
Noncontrolling Interests - Partially Owned Properties	125,843	126,583
Total capital	10,628,619	10,845,196
Total liabilities and equity	$ 22,991,402	$ 22,834,545

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CONSOLIDATED STATEMENT OF CHANGES IN CAPITAL OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) (USD $) In Thousands, unless otherwise specified	Total	PREFERRED UNITS	General Partner [Member]	Limited Partner [Member]	Accumulated Other Comprehensive (Loss)	Partially Owned Properties [Member]
Balance, beginning of year - Noncontrolling Interest at Dec. 31, 2013						$ 126,583
Balance, beginning of year at Dec. 31, 2013		50,000	10,612,363	211,412	(155,162)
OP Unit Issuance:
Conversion of OP Units held by Limited Partners into OP Units held by General Partner			1,430	(1,430)
Exercise of EQR share options			25,685
Stock Issued During Period, Value, Employee Stock Purchase Plan			2,218
Share-based employee compensation expense:
EQR restricted shares			6,983
EQR share options			5,330
EQR ESPP discount			587
Payments For Repurchase Of Op Units			(1,777)
Net income available to Units - General Partner			189,753
OP Units - General Partner distributions			(361,279)
Supplemental Executive Retirement Plan (SERP)			4,212
Acquisition Noncontrolling Interests Partially Owned Properties			(2,308)			(2,244)
Change in market value of Redeemable Limited Partners			(80,615)
Adjustment for Limited Partners ownership in Operating Partnership			4,146	(4,146)
Issuance of LTIP Units to Noncontrolling Interests				3
Equity compensation associated with Units - Limited Partners				10,319
Net Income (Loss) Allocated to Limited Partners				7,535
Net (income) attributable to Noncontrolling Interests – Partially Owned Properties	1,092					1,092
Units - Limited Partners distributions				(14,364)		(5,272)
Change in carrying value of Redeemable Limited Partners				3,709
Other comprehensive (loss) income – derivative instruments:
Unrealized holding (losses) arising during the period	(21,881)				(21,881)
Losses reclassified into earnings from other comprehensive income	(8,335)				8,335
Currency translation adjustments arising during the period	1,718				1,718
Contributions by Noncontrolling Interests	5,684					5,684
Balance, end of period - Noncontrolling Interest at Jun. 30, 2014						125,843
Balance, end of period at Jun. 30, 2014		$ 50,000	$ 10,406,728	$ 213,038	$ (166,990)

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CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Unaudited) (USD $) In Thousands, unless otherwise specified	Total	PREFERRED SHARES	COMMON SHARES, $0.01 PAR VALUE	Additional Paid-in Capital [Member]	RETAINED EARNINGS	Accumulated Other Comprehensive (Loss)	OPERATING PARTNERSHIP	Partially Owned Properties [Member]
Beginning Balance, Noncontrolling Interest at Dec. 31, 2013	$ 337,995						$ 211,412	$ 126,583
Beginning Balance, Parent at Dec. 31, 2013	10,507,201	50,000	3,605	8,561,500	2,047,258	(155,162)
Common Share Issuance:
Conversion of OP Units held by Noncontrolling Interests into OP Units held by General Partner			1	1,429			(1,430)
Exercise of share options			8	25,677
Stock Issued During Period, Value, Employee Stock Purchase Plan				2,218
Share-based employee compensation expense:
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition			2	6,981
Share options				5,330
ESPP discount				587
Payments for Repurchase of Common Stock	(1,777)			(1,777)
Supplemental Executive Retirement Plan (SERP)				4,212
Acquisition Noncontrolling Interests Partially Owned Properties				(2,308)				(2,244)
Change in market value	(80,615)			(80,615)
Adjustment for Noncontrolling Interests ownership in Operating Partnership				4,146			(4,146)
Net income attributable to controlling interests	191,825				191,825
Common Share distributions					(361,279)
Dividends, Preferred Stock, Cash					(2,072)
Other comprehensive (loss) income – derivative instruments:
Unrealized holding (losses) arising during the period	(21,881)					(21,881)
Losses reclassified into earnings from other comprehensive income	(8,335)					8,335
Currency translation adjustments arising during the period	1,718					1,718
Issuance of LTIP Units to Noncontrolling Interests							3
Equity Compensation associated with Noncontrolling Interests							10,319
Net (Income) Attributable to Noncontrolling Interest	7,535						7,535	1,092
Contributions by Noncontrolling Interests	5,684							5,684
Distributions to Noncontrolling Interests							(14,364)	(5,272)
Change in carrying value							3,709
Ending Balance, Noncontrolling Interest at Jun. 30, 2014	338,881						213,038	125,843
Ending Balance, Parent at Jun. 30, 2014	$ 10,289,738	$ 50,000	$ 3,616	$ 8,527,380	$ 1,875,732	$ (166,990)

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Discontinued Operations

6 Months Ended

Jun. 30, 2014

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

11. Discontinued Operations

The Company has presented separately as discontinued operations in all periods the results of operations for all consolidated assets disposed of and all properties held for sale, if any, for properties sold in 2013 and prior years. The amounts included in discontinued operations for the six months and quarter ended June 30, 2014 represent trailing activity for properties sold in 2013 and prior years. None of the properties sold during the six months and quarter ended June 30, 2014 met the new criteria for reporting discontinued operations. See Note 2 for further discussion.

The components of discontinued operations are outlined below and include the results of operations for the respective periods that the Company owned such assets for properties sold in 2013 and prior years during the six months and quarters ended June 30, 2014 and 2013 (amounts in thousands).

	Six Months Ended June 30,						Quarter Ended June 30,
	2014			2013			2014			2013
REVENUES
Rental income	$	1,275		$	107,956		$	252		$	26,174
Total revenues	1,275			107,956			252			26,174
EXPENSES (1)
Property and maintenance	(41		)	31,449			(89		)	11,025
Real estate taxes and insurance	(6		)	10,867			(19		)	2,273
Property management	—			1			—			—
Depreciation	—			30,962			—			7,146
General and administrative	51			73			46			65
Total expenses	4			73,352			(62		)	20,509
Discontinued operating income	1,271			34,604			314			5,665
Interest and other income	80			90			45			38
Other expenses	—			(3		)	—			(1		)
Interest (2):
Expense incurred, net	—			(1,258		)	—			(6		)
Amortization of deferred financing costs	—			(228		)	—			—
Income and other tax (expense) benefit	(13		)	(463		)	(2		)	(405		)
Discontinued operations	1,338			32,742			357			5,291
Net gain on sales of discontinued operations	224			1,588,874			153			389,952
Discontinued operations, net	$	1,562		$	1,621,616		$	510		$	395,243

(1) Includes expenses paid in the current period for properties sold in prior periods related to the Company’s period of ownership.

(2) Includes only interest expense specific to secured mortgage notes payable for properties sold.

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Deposits - Restricted

6 Months Ended

Jun. 30, 2014

Deposits - Restricted [Abstract]

Restricted Cash And Cash Equivalents Disclosure [Text Block]

7. Deposits – Restricted and Escrow Deposits – Mortgage

The following table presents the Company’s restricted deposits as of June 30, 2014 and December 31, 2013 (amounts in thousands):

	June 30, 2014		December 31, 2013
Earnest money on pending acquisitions	$	830	$	4,514
Restricted deposits on real estate investments	36,476		53,771
Resident security and utility deposits	46,597		44,777
Other	505		505
Totals	$	84,408	$	103,567

The following table presents the Company’s escrow deposits as of June 30, 2014 and December 31, 2013 (amounts in thousands):

	June 30, 2014		December 31, 2013
Real estate taxes and insurance	$	3,500	$	3,687
Replacement reserves	3,469		4,229
Mortgage principal reserves/sinking funds	37,448		33,868
Other	852		852
Totals	$	45,269	$	42,636

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Equity, Capital and Other Interests

6 Months Ended

Jun. 30, 2014

Equity, Capital and other Interests [Abstract]

Equity Capital And Other Interests [Text Block]

3. Equity, Capital and Other Interests

Equity and Redeemable Noncontrolling Interests of Equity Residential

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 six months ended June 30, 2014:

	2014
Common Shares
Common Shares outstanding at January 1,	360,479,260
Common Shares Issued:
Conversion of OP Units	56,536
Exercise of share options	851,514
Employee Share Purchase Plan (ESPP)	47,457
Restricted share grants, net	170,626
Common Shares Other:
Conversion of restricted shares to LTIP Units	(12,146	)
Repurchased and retired	(31,240	)
Common Shares outstanding at June 30,	361,562,007
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	(56,536	)
Units outstanding at June 30,	14,336,826
Total Common Shares and Units outstanding at June 30,	375,898,833
Units Ownership Interest in Operating Partnership	3.8	%

The equity positions of various individuals and entities that contributed their properties to the Operating Partnership in exchange for OP Units, as well as the equity positions of the holders of LTIP Units, are collectively referred to as the “Noncontrolling Interests – Operating Partnership”. Subject to certain exceptions (including the “book-up” requirements of LTIP Units), the Noncontrolling Interests – Operating Partnership may exchange their Units with EQR for Common Shares on a one-for-one basis. The carrying value of the Noncontrolling Interests – Operating Partnership (including redeemable interests) is allocated based on the number of Noncontrolling Interests – Operating Partnership Units in total in proportion to the number of Noncontrolling Interests – Operating Partnership Units in total plus the number of Common Shares. Net income is allocated to the Noncontrolling Interests – Operating Partnership based on the weighted average ownership percentage during the period.

The Operating Partnership has the right but not the obligation to make a cash payment instead of issuing Common Shares to any and all holders of Noncontrolling Interests – Operating Partnership Units requesting an exchange of their OP Units with EQR. Once the Operating Partnership elects not to redeem the Noncontrolling Interests – Operating Partnership Units for cash, EQR is obligated to deliver Common Shares to the exchanging holder of the Noncontrolling Interests – Operating Partnership Units.

The Noncontrolling Interests – Operating Partnership Units are classified as either mezzanine equity or permanent equity. If EQR is required, either by contract or securities law, to deliver registered Common Shares, such Noncontrolling Interests – Operating Partnership are differentiated and referred to as “Redeemable Noncontrolling Interests – Operating Partnership”. Instruments that require settlement in registered shares can not be classified in permanent equity as it is not always completely within an issuer’s control to deliver registered shares. Therefore, settlement in cash is assumed and that responsibility for settlement in cash is deemed to fall to the Operating Partnership as the primary source of cash for EQR, resulting in presentation in the mezzanine section of the balance sheet. The Redeemable Noncontrolling Interests – Operating Partnership are adjusted to the greater of carrying value or fair market value based on the Common Share price of EQR at the end of each respective reporting period. EQR has the ability to deliver unregistered Common Shares for the remaining portion of the Noncontrolling Interests – Operating Partnership Units that are classified in permanent equity at June 30, 2014 and December 31, 2013.

The carrying value of the Redeemable Noncontrolling Interests – Operating Partnership is allocated based on the number of Redeemable Noncontrolling Interests – Operating Partnership Units in proportion to the number of Noncontrolling Interests – Operating Partnership Units in total. Such percentage of the total carrying value of Units which is ascribed to the Redeemable Noncontrolling Interests – Operating Partnership is then adjusted to the greater of carrying value or fair market value as described above. As of June 30, 2014, the Redeemable Noncontrolling Interests – Operating Partnership have a redemption value of approximately $440.1 million, which represents the value of Common Shares that would be issued in exchange with the Redeemable Noncontrolling Interests – Operating Partnership Units.

The following table presents the changes in the redemption value of the Redeemable Noncontrolling Interests – Operating Partnership for the six months ended June 30, 2014 (amounts in thousands):

	2014
Balance at January 1,	$	363,144
Change in market value	80,615
Change in carrying value	(3,709		)
Balance at June 30,	$	440,050

Net proceeds from EQR Common Share and Preferred Share (see definition below) offerings are contributed by EQR to ERPOP. In return for those contributions, EQR receives a number of OP Units in ERPOP equal to the number of Common Shares it has issued in the equity offering (or in the case of a preferred equity offering, a number of preference units in ERPOP equal in number and having the same terms as the Preferred Shares issued in the equity offering). As a result, the net offering proceeds from Common Shares and Preferred Shares are allocated between shareholders’ equity and Noncontrolling Interests – Operating Partnership to account for the change in their respective percentage ownership of the underlying equity of ERPOP.

The Company’s declaration of trust authorizes it to issue up to 100,000,000 preferred shares of beneficial interest, $0.01 par value per share (the “Preferred Shares”), with specific rights, preferences and other attributes as the Board of Trustees may determine, which may include preferences, powers and rights that are senior to the rights of holders of the Company’s Common Shares.

The following table presents the Company’s issued and outstanding Preferred Shares as of June 30, 2014 and December 31, 2013:

				Amounts in thousands
	Redemption Date (1)	Annual Dividend per Share (2)		June 30, 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 June 30, 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.

Capital and Redeemable Limited Partners of ERP Operating Limited Partnership

The following tables present the changes in the Operating Partnership’s issued and outstanding Units and in the limited partners’ Units for the six months ended June 30, 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	851,514
EQR’s Employee Share Purchase Plan (ESPP)	47,457
EQR's restricted share grants, net	170,626
Issued to Limited Partners:
LTIP Units, net	200,840
OP Units Other:
Repurchased and retired	(31,240	)
General and Limited Partner Units outstanding at June 30,	375,898,833
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	(56,536	)
Limited Partner Units outstanding at June 30,	14,336,826
Limited Partner Units Ownership Interest in Operating Partnership	3.8	%

The Limited Partners of the Operating Partnership as of June 30, 2014 include various individuals and entities that contributed their properties to the Operating Partnership in exchange for OP Units, as well as the equity positions of the holders of LTIP Units. Subject to certain exceptions (including the “book-up” requirements of LTIP Units), Limited Partners may exchange their Units with EQR for Common Shares on a one-for-one basis. The carrying value of the Limited Partner Units (including redeemable interests) is allocated based on the number of Limited Partner Units in total in proportion to the number of Limited Partner Units in total plus the number of General Partner Units. Net income is allocated to the Limited Partner Units based on the weighted average ownership percentage during the period.

The Operating Partnership has the right but not the obligation to make a cash payment instead of issuing Common Shares to any and all holders of Limited Partner Units requesting an exchange of their OP Units with EQR. Once the Operating Partnership elects not to redeem the Limited Partner Units for cash, EQR is obligated to deliver Common Shares to the exchanging limited partner.

The Limited Partner Units are classified as either mezzanine equity or permanent equity. If EQR is required, either by contract or securities law, to deliver registered Common Shares, such Limited Partner Units are differentiated and referred to as “Redeemable Limited Partner Units”. Instruments that require settlement in registered shares can not be classified in permanent equity as it is not always completely within an issuer's control to deliver registered shares. Therefore, settlement in cash is assumed and that responsibility for settlement in cash is deemed to fall to the Operating Partnership as the primary source of cash for EQR, resulting in presentation in the mezzanine section of the balance sheet. The Redeemable Limited Partner Units are adjusted to the greater of carrying value or fair market value based on the Common Share price of EQR at the end of each respective reporting period. EQR has the ability to deliver unregistered Common Shares for the remaining portion of the Limited Partner Units that are classified in permanent equity at June 30, 2014 and December 31, 2013.

The carrying value of the Redeemable Limited Partner Units is allocated based on the number of Redeemable Limited Partner Units in proportion to the number of Limited Partner Units in total. Such percentage of the total carrying value of Limited Partner Units which is ascribed to the Redeemable Limited Partner Units is then adjusted to the greater of carrying value or fair market value as described above. As of June 30, 2014, the Redeemable Limited Partner Units have a redemption value of approximately $440.1 million, which represents the value of Common Shares that would be issued in exchange with the Redeemable Limited Partner Units.

The following table presents the changes in the redemption value of the Redeemable Limited Partners for the six months ended June 30, 2014 (amounts in thousands):

	2014
Balance at January 1,	$	363,144
Change in market value	80,615
Change in carrying value	(3,709		)
Balance at June 30,	$	440,050

EQR contributes all net proceeds from its various equity offerings (including proceeds from exercise of options for Common Shares) to ERPOP. In return for those contributions, EQR receives a number of OP Units in ERPOP equal to the number of Common Shares it has issued in the equity offering (or in the case of a preferred equity offering, a number of preference units in ERPOP equal in number and having the same terms as the preferred shares issued in the equity offering).

The following table presents the Operating Partnership’s issued and outstanding “Preference Units” as of June 30, 2014 and December 31, 2013:

				Amounts in thousands
	Redemption Date (1)	Annual Dividend per Unit (2)		June 30, 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 June 30, 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.

Other

On February 27, 2013, the Company issued 34,468,085 Common Shares to an affiliate of Lehman Brothers Holdings Inc. as partial consideration for the portion of the Archstone Portfolio acquired by the Company (as discussed in Note 4 below). The shares had a total value of $1.9 billion based on the February 27, 2013 closing price of EQR Common Shares of $55.99 per share. Concurrent with this transaction, ERPOP issued 34,468,085 OP Units to EQR. On March 7, 2013, EQR filed a shelf registration statement relating to the resale of these shares by the selling shareholders.

In September 2009, the Company announced the establishment of an At-The-Market (“ATM”) share offering program which would allow EQR to sell Common Shares from time to time into the existing trading market at current market prices as well as through negotiated transactions. Per the terms of ERPOP's partnership agreement, EQR contributes the net proceeds from all equity offerings to the capital of ERPOP in exchange for additional OP Units (on a one-for-one Common Share per OP Unit basis). On July 30, 2013, the Board of Trustees approved an increase to the amount of shares which may be offered under the ATM program to 13.0 million Common Shares and extended the program maturity to July 2016. EQR has not issued any shares under this program since September 14, 2012.

Effective July 30, 2013, the Board of Trustees approved an increase and modification to the Company's share repurchase program to allow for the potential repurchase of up to 13.0 million Common Shares. Considering the repurchase activity for the six months ended June 30, 2014 (see discussion below), EQR has remaining authorization to repurchase an additional 12,968,760 of its shares as of June 30, 2014.

During the six months ended June 30, 2014, EQR repurchased 31,240 of its Common Shares at a price of $56.87 per share for total consideration of approximately $1.8 million. These shares were retired subsequent to the repurchases. Concurrent with these transactions, ERPOP repurchased and retired 31,240 OP Units previously issued to EQR. All of the shares repurchased during the six months ended June 30, 2014 were repurchased from employees at the then current market price to cover the minimum statutory tax withholding obligations related to the vesting of employees’ restricted shares. 

During the six months ended June 30, 2014, the Company acquired all of its partners' interests in one consolidated partially owned property consisting of 268 apartment units and one consolidated partially owned land parcel for $5.5 million. In conjunction with these transactions, the Company reduced paid in capital (included in general partner's capital in the Operating Partnership's financial statements) by $2.3 million, Noncontrolling Interests – Partially Owned Properties by $2.2 million and other liabilities by $1.0 million.

See Note 6 for a discussion of the Noncontrolling Interests assumed in conjunction with the acquisition of Archstone.

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Reportable Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Rental income:
Same store	$ 626,746	$ 602,046	$ 1,239,506	$ 1,191,430
Segment Reporting Segment Non Same Store Rental Income	23,020	12,498	40,985	18,099
Segment Reporting Information Revenues	649,766	614,544	1,280,491	1,117,106
Operating expenses:
Same store	208,086	205,213	426,227	416,591
Segment Reporting Segment Non Same Store Operating Expenses	10,912	7,061	22,556	18,525
Segment Reporting Segment Operating Expenses	218,998	212,274	448,783	398,387
NOI:
Same store	418,660	396,833	813,279	774,839
Segment Reporting Information Non Same Store Net Operating Income	12,108	5,437	18,429	(426)
Segment Reporting Information Net Operating Income	430,768	402,270	831,708	718,719
Assets	22,991,402		22,991,402		22,834,545
Payments to Acquire Other Property, Plant, and Equipment			76,912
Reportable Segments (Textuals) [Abstract]
Units in same store properties			100,648
Rental income	649,766	614,544	1,280,491	1,117,106
Property Repairs and Maintenance	(115,388)	(113,501)	(240,961)	(212,030)
Real Estate Taxes and Insurance	(83,055)	(76,742)	(165,149)	(141,837)
Property management	(20,555)	(22,031)	(42,673)	(44,520)
Total Operating Expenses	(218,998)	(212,274)	(448,783)	(398,387)
Archstone [Member]
Reportable Segments (Textuals) [Abstract]
Units in same store properties			18,465
Same Store [Domain]
NOI:
Assets	20,029,692		20,029,692
Payments to Acquire Other Property, Plant, and Equipment			74,398
Non-same store [Domain]
NOI:
Assets	2,961,710		2,961,710
Payments to Acquire Other Property, Plant, and Equipment			2,514
Boston [Domain]
Rental income:
Same store	63,117	61,401	125,024	120,455
Segment Reporting Segment Non Same Store Rental Income	790	898	1,817	1,154
Operating expenses:
Same store	19,259	19,444	41,414	39,651
Segment Reporting Segment Non Same Store Operating Expenses	202	201	413	255
NOI:
Same store	43,858	41,957	83,610	80,804
Segment Reporting Information Non Same Store Net Operating Income	588	697	1,404	899
Boston [Domain] | Same Store [Domain]
NOI:
Assets	1,953,627		1,953,627
Payments to Acquire Other Property, Plant, and Equipment			8,814
Boston [Domain] | Non-same store [Domain]
NOI:
Assets	48,830		48,830
Payments to Acquire Other Property, Plant, and Equipment			630
Denver [Domain]
Rental income:
Same store	27,511	25,524	54,123	50,494
Operating expenses:
Same store	7,648	7,770	15,098	14,987
NOI:
Same store	19,863	17,754	39,025	35,507
Denver [Domain] | Same Store [Domain]
NOI:
Assets	530,832		530,832
Payments to Acquire Other Property, Plant, and Equipment			1,904
New York [Domain]
Rental income:
Same store	114,221	109,299	225,407	217,297
Operating expenses:
Same store	41,898	40,634	88,102	83,745
NOI:
Same store	72,323	68,665	137,305	133,552
New York [Domain] | Same Store [Domain]
NOI:
Assets	4,720,592		4,720,592
Payments to Acquire Other Property, Plant, and Equipment			8,202
San Francisco [Domain]
Rental income:
Same store	84,082	77,514	165,343	152,459
Operating expenses:
Same store	26,305	25,955	52,960	54,109
NOI:
Same store	57,777	51,559	112,383	98,350
San Francisco [Domain] | Same Store [Domain]
NOI:
Assets	2,753,902		2,753,902
Payments to Acquire Other Property, Plant, and Equipment			12,704
Seattle [Domain]
Rental income:
Same store	38,977	36,176	76,702	71,548
Segment Reporting Segment Non Same Store Rental Income	2,756	1,271	4,444	1,303
Operating expenses:
Same store	13,037	12,316	25,805	24,553
Segment Reporting Segment Non Same Store Operating Expenses	1,042	373	1,779	374
NOI:
Same store	25,940	23,860	50,897	46,995
Segment Reporting Information Non Same Store Net Operating Income	1,714	898	2,665	929
Seattle [Domain] | Same Store [Domain]
NOI:
Assets	1,046,051		1,046,051
Payments to Acquire Other Property, Plant, and Equipment			5,264
Seattle [Domain] | Non-same store [Domain]
NOI:
Assets	226,604		226,604
Payments to Acquire Other Property, Plant, and Equipment			281
South Florida [Domain]
Rental income:
Same store	49,456	47,051	97,893	93,289
Segment Reporting Segment Non Same Store Rental Income	1,241	14	2,041	24
Operating expenses:
Same store	18,220	17,774	36,404	35,417
Segment Reporting Segment Non Same Store Operating Expenses	760	68	1,301	146
NOI:
Same store	31,236	29,277	61,489	57,872
Segment Reporting Information Non Same Store Net Operating Income	481	(54)	740	(122)
South Florida [Domain] | Same Store [Domain]
NOI:
Assets	1,170,295		1,170,295
Payments to Acquire Other Property, Plant, and Equipment			7,600
South Florida [Domain] | Non-same store [Domain]
NOI:
Assets	70,896		70,896
Payments to Acquire Other Property, Plant, and Equipment			16
Southern California [Domain]
Rental income:
Same store	104,608	100,156	207,272	198,366
Segment Reporting Segment Non Same Store Rental Income	8,446	4,106	15,623	5,397
Operating expenses:
Same store	34,811	34,275	69,450	69,149
Segment Reporting Segment Non Same Store Operating Expenses	4,261	1,976	7,452	2,593
NOI:
Same store	69,797	65,881	137,822	129,217
Segment Reporting Information Non Same Store Net Operating Income	4,185	2,130	8,171	2,804
Southern California [Domain] | Same Store [Domain]
NOI:
Assets	2,978,750		2,978,750
Payments to Acquire Other Property, Plant, and Equipment			11,953
Southern California [Domain] | Non-same store [Domain]
NOI:
Assets	511,343		511,343
Payments to Acquire Other Property, Plant, and Equipment			645
Washington DC [Domain]
Rental income:
Same store	111,739	112,815	222,135	223,807
Segment Reporting Segment Non Same Store Rental Income	5,906	3,512	10,840	5,320
Operating expenses:
Same store	35,102	35,165	72,499	71,049
Segment Reporting Segment Non Same Store Operating Expenses	1,954	1,209	3,857	1,862
NOI:
Same store	76,637	77,650	149,636	152,758
Segment Reporting Information Non Same Store Net Operating Income	3,952	2,303	6,983	3,458
Washington DC [Domain] | Same Store [Domain]
NOI:
Assets	4,270,418		4,270,418
Payments to Acquire Other Property, Plant, and Equipment			14,834
Washington DC [Domain] | Non-same store [Domain]
NOI:
Assets	306,594		306,594
Payments to Acquire Other Property, Plant, and Equipment			852
Non-Core [Domain]
Rental income:
Same store	33,035	32,110	65,607	63,715
Operating expenses:
Same store	11,806	11,880	24,495	23,931
NOI:
Same store	21,229	20,230	41,112	39,784
Non-Core [Domain] | Same Store [Domain]
NOI:
Assets	605,225		605,225
Payments to Acquire Other Property, Plant, and Equipment			3,123
Archstone pre-ownership [Member]
Rental income:
Same store			0	(92,423)
Operating expenses:
Same store			0	(36,729)
NOI:
Same store			0	(55,694)
Other [Domain]
Rental income:
Segment Reporting Segment Non Same Store Rental Income	3,881	2,697	6,220	4,901
Operating expenses:
Segment Reporting Segment Non Same Store Operating Expenses	2,693	3,234	7,754	13,295
NOI:
Segment Reporting Information Non Same Store Net Operating Income	1,188	(537)	(1,534)	(8,394)
Other [Domain] | Non-same store [Domain]
NOI:
Assets	1,797,443		1,797,443
Payments to Acquire Other Property, Plant, and Equipment			$ 90

XML

Business

6 Months Ended

Jun. 30, 2014

Business [Abstract]

Business

1. Business

Equity Residential (“EQR”), a Maryland real estate investment trust (“REIT”) formed in March 1993, is an S&P 500 company focused on the acquisition, development and management of high quality apartment properties in top United States growth markets. ERP Operating Limited Partnership ("ERPOP"), an Illinois limited partnership, was formed in May 1993 to conduct the multifamily residential property business of Equity Residential. EQR has elected to be taxed as a REIT. References to the "Company," "we," "us" or "our" mean collectively EQR, ERPOP and those entities/subsidiaries owned or controlled by EQR and/or ERPOP. References to the "Operating Partnership" mean collectively ERPOP and those entities/subsidiaries owned or controlled by ERPOP. Unless otherwise indicated, the notes to consolidated financial statements apply to both the Company and the Operating Partnership.

EQR is the general partner of, and as of June 30, 2014 owned an approximate 96.2% ownership interest in, ERPOP. All of the Company’s property ownership, development and related business operations are conducted through the Operating Partnership and EQR has no material assets or liabilities other than its investment in ERPOP. EQR issues public equity from time to time but does not have any indebtedness as all debt is incurred by the Operating Partnership. The Operating Partnership holds substantially all of the assets of the Company, including the Company’s ownership interests in its joint ventures. The Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity.

As of June 30, 2014, the Company, directly or indirectly through investments in title holding entities, owned all or a portion of 397 properties located in 12 states and the District of Columbia consisting of 111,491 apartment units. The ownership breakdown includes (table does not include various uncompleted development properties):

	Properties	Apartment Units
Wholly Owned Properties	369	100,210
Master-Leased Properties – Consolidated	3	853
Partially Owned Properties – Consolidated	19	3,752
Partially Owned Properties – Unconsolidated	4	1,669
Military Housing	2	5,007
	397	111,491

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2014

Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) and certain reclassifications considered necessary for a fair presentation have been included. Certain reclassifications have been made to the prior period financial statements in order to conform to the current year presentation. These reclassifications did not have an impact on net income previously reported. Operating results for the six months ended June 30, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014.

In preparation of the Company’s financial statements in conformity with accounting principles generally accepted in the United States, management makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.

The balance sheets at December 31, 2013 have been derived from the audited financial statements at that date but do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.

For further information, including definitions of capitalized terms not defined herein, refer to the consolidated financial statements and footnotes thereto included in the Company’s and the Operating Partnership's annual report on Form 10-K for the year ended December 31, 2013.

Income and Other Taxes

Due to the structure of EQR as a REIT and the nature of the operations of its operating properties, no provision for federal income taxes has been made at the EQR level. In addition, ERPOP generally is not liable for federal income taxes as the partners recognize their proportionate share of income or loss in their tax returns; therefore no provision for federal income taxes has been made at the ERPOP level. Historically, the Company has generally only incurred certain state and local income, excise and franchise taxes. The Company has elected Taxable REIT Subsidiary (“TRS”) status for certain of its corporate subsidiaries and as a result, these entities will incur both federal and state income taxes on any taxable income of such entities after consideration of any net operating losses.

Deferred tax assets and liabilities applicable to the TRS are recognized for future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. These assets and liabilities are measured using enacted tax rates for which the temporary differences are expected to be recovered or settled. The effects of changes in tax rates on deferred tax assets and liabilities are recognized in earnings in the period enacted. The Company’s deferred tax assets are generally the result of tax affected suspended interest deductions, net operating losses, differing depreciable lives on capitalized assets and the timing of expense recognition for certain accrued liabilities. As of June 30, 2014, the Company has recorded a deferred tax asset, which is fully offset by a valuation allowance due to the uncertainty in forecasting future TRS taxable income.

Other

The Company is the controlling partner in various consolidated partnerships owning 19 properties and 3,752 apartment units and various completed and uncompleted development properties having a noncontrolling interest book value of $125.8 million at June 30, 2014. The Company is required to make certain disclosures regarding noncontrolling interests in consolidated limited-life subsidiaries. Of the consolidated entities described above, the Company is the controlling partner in limited-life partnerships owning six properties having a noncontrolling interest deficit balance of $10.2 million. These six partnership agreements contain provisions that require the partnerships to be liquidated through the sale of their assets upon reaching a date specified in each respective partnership agreement. The Company, as controlling partner, has an obligation to cause the property owning partnerships to distribute the proceeds of liquidation to the Noncontrolling Interests in these Partially Owned Properties only to the extent that the net proceeds received by the partnerships from the sale of their assets warrant a distribution based on the partnership agreements. As of June 30, 2014, the Company estimates the value of Noncontrolling Interest distributions for these six properties would have been approximately $53.2 million (“Settlement Value”) had the partnerships been liquidated. This Settlement Value is based on estimated third party consideration realized by the partnerships upon disposition of the six Partially Owned Properties and is net of all other assets and liabilities, including yield maintenance on the mortgages encumbering the properties, that would have been due on June 30, 2014 had those mortgages been prepaid. Due to, among other things, the inherent uncertainty in the sale of real estate assets, the amount of any potential distribution to the Noncontrolling Interests in the Company's Partially Owned Properties is subject to change. To the extent that the partnerships' underlying assets are worth less than the underlying liabilities, the Company has no obligation to remit any consideration to the Noncontrolling Interests in these Partially Owned Properties.

Effective January 1, 2013, companies are required to report, in one place, information about reclassifications out of accumulated other comprehensive income ("AOCI"). Companies are also required to report changes in AOCI balances. For significant items reclassified out of AOCI to net income in their entirety in the same reporting period, reporting is required about the effect of the reclassifications on the respective line items in the statement where net income is presented. For items that are not reclassified to net income in their entirety in the same reporting period, a cross reference to other disclosures currently required under US GAAP is required in the notes. This does not have a material effect on the Company's consolidated results of operations or financial position. See Note 9 for further discussion.

Effective January 1, 2014, companies are required to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount a company agreed to pay on the basis of its arrangement among its co-obligors and any additional amount a company expects to pay on behalf of its co-obligors. Companies are required to disclose the nature and amount of the obligation as well as other information about those obligations. This does not have a material effect on the Company's consolidated results of operations or financial position.

In April 2014, the Financial Accounting Standards Board (the "FASB") issued new guidance for reporting discontinued operations. Only disposals representing a strategic shift in operations that has a major effect on a company’s operations and financial results will be presented as discontinued operations. Companies will be required to expand their disclosures about discontinued operations to provide more information on the assets, liabilities, income and expenses of the discontinued operations. Companies will also be required to disclose the pre-tax income attributable to a disposal of a significant part of a company that does not qualify for discontinued operations reporting. Application of this guidance is prospective from the date of adoption and early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued. The new standard is effective January 1, 2015 but the Company early adopted it as allowed effective January 1, 2014. Adoption of this standard did not have a material effect on the Company's overall consolidated results of operations or financial position. However, adoption will result in substantially fewer of the Company's dispositions meeting the discontinued operations qualifications. See Note 11 for further discussion.

In May 2014, the FASB issued a comprehensive new revenue recognition standard entitled Revenue from Contracts with Customers that will supersede nearly all existing revenue recognition guidance. The new standard specifically excludes lease contracts. The new standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. Companies will likely need to use more judgment and make more estimates than under current revenue recognition guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration, if any, to include in the transaction price and allocating the transaction price to each separate performance obligation. The new standard will be effective for the Company beginning on January 1, 2017 and early adoption is not permitted. The new standard may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption. The Company has not yet selected a transition method and is currently evaluating the impact of adopting the new standard on its consolidated results of operations and financial position.

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Real Estate

6 Months Ended

Jun. 30, 2014

Real Estate [Abstract]

Real Estate Disclosure [Text Block]

4. Real Estate and Lease Intangibles

The following table summarizes the carrying amounts for the Company’s investment in real estate (at cost) as of June 30, 2014 and December 31, 2013 (amounts in thousands):

	June 30, 2014			December 31, 2013
Land	$	6,296,735		$	6,192,512
Depreciable property:
Buildings and improvements	17,920,222			17,509,609
Furniture, fixtures and equipment	1,302,882			1,214,220
In-Place lease intangibles	507,633			502,218
Projects under development:
Land	391,156			353,574
Construction-in-progress	615,836			635,293
Land held for development:
Land	256,536			341,389
Construction-in-progress	50,089			52,133
Investment in real estate	27,341,089			26,800,948
Accumulated depreciation	(5,170,438		)	(4,807,709		)
Investment in real estate, net	$	22,170,651		$	21,993,239

The following table summarizes the carrying amounts for the Company's above and below market ground and retail lease intangibles as of June 30, 2014 and December 31, 2013 (amounts in thousands):

Description	Balance Sheet Location	June 30, 2014			December 31, 2013
Assets
Ground lease intangibles – below market	Other Assets	$	178,251		$	178,251
Retail lease intangibles – above market	Other Assets	1,260			1,260
Lease intangible assets		179,511			179,511
Accumulated amortization		(6,641		)	(4,364		)
Lease intangible assets, net		$	172,870		$	175,147
Liabilities
Ground lease intangibles – above market	Other Liabilities	$	2,400		$	2,400
Retail lease intangibles – below market	Other Liabilities	5,270			5,500
Lease intangible liabilities		7,670			7,900
Accumulated amortization		(1,678		)	(1,161		)
Lease intangible liabilities, net		$	5,992		$	6,739

During the six months ended June 30, 2014 and 2013, the Company amortized approximately $2.2 million and $1.4 million, respectively, of above and below market ground lease intangibles which is included (net increase) in property and maintenance expense in the accompanying consolidated statements of operations and comprehensive income and approximately $0.6 million and $0.2 million, respectively, of above and below market retail lease intangibles which is included (net increase) in rental income in the accompanying consolidated statements of operations and comprehensive income. During the quarters ended June 30, 2014 and 2013, the Company amortized approximately $1.1 million and $1.0 million, respectively, of above and below market ground lease intangibles which is included (net increase) in property and maintenance expense in the accompanying consolidated statements of operations and comprehensive income and approximately $0.3 million and $0.1 million, respectively, of above and below market retail lease intangibles which is included (net increase) in rental income in the accompanying consolidated statements of operations and comprehensive income.

The weighted average amortization period for above and below market ground lease intangibles and retail lease intangibles is 49.8 years and 2.8 years, respectively.

The following table provides a summary of the aggregate amortization expense for above and below market ground lease intangibles and retail lease intangibles for each of the next five years (amounts in thousands):

	Remaining
	2014			2015			2016			2017			2018			2019
Ground lease intangibles	$	2,161		$	4,321		$	4,321		$	4,321		$	4,321		$	4,321
Retail lease intangibles	(469		)	(939		)	(896		)	(540		)	(71		)	(71		)
Total	$	1,692		$	3,382		$	3,425		$	3,781		$	4,250		$	4,250

Archstone Acquisition

On February 27, 2013, the Company, AvalonBay Communities, Inc. (“AVB”) and certain of their respective subsidiaries completed their previously announced acquisition (the “Archstone Acquisition” or the “Archstone Transaction”) from Archstone Enterprise LP (“Enterprise”) (which subsequently changed its name to Jupiter Enterprise LP), an affiliate of Lehman Brothers Holdings Inc. (“Lehman”) and its affiliates, of all of the assets of Enterprise (including interests in various entities affiliated with Enterprise), constituting a portfolio of apartment properties and other assets (the “Archstone Portfolio”).

The Company acquired assets representing approximately 60% of the Archstone Portfolio which consisted principally of high-quality apartment properties in major markets in the United States. The acquisition allowed the Company to accelerate the completion of its strategic shift into coastal apartment markets. Pursuant to the Archstone Transaction, the Company acquired directly or indirectly, 71 wholly owned, stabilized properties consisting of 20,160 apartment units, one partially owned and consolidated stabilized property consisting of 432 apartment units, one partially owned and unconsolidated stabilized property consisting of 336 apartment units, three consolidated master-leased properties consisting of 853 apartment units, four projects in various stages of construction (two consolidated and two unconsolidated) for 964 apartment units and fourteen land sites for approximately $9.0 billion. During the six months ended June 30, 2013, the Company recorded revenues and net operating income ("NOI") of $204.5 million and $140.0 million, respectively, from the acquired assets. During the quarter ended June 30, 2013, the Company recorded revenues and NOI of $151.9 million and $103.9 million, respectively, from the acquired assets.

The consideration paid by the Company in connection with the Archstone Acquisition consisted of cash of approximately $4.0 billion (inclusive of $2.0 billion of Archstone secured mortgage principal paid off in conjunction with the closing), 34,468,085 Common Shares (which shares had a total value of $1.9 billion based on the February 27, 2013 closing price of EQR common shares of $55.99 per share) issued to the seller and the assumption of approximately $3.1 billion of mortgage debt (inclusive of a net mark-to-market premium of $127.9 million) and approximately 60% of all of the other assets and liabilities related to the Archstone Portfolio. The cash consideration was funded with proceeds from the issuance of 21,850,000 Common Shares (which shares had a total value of approximately $1.2 billion based on a price of $54.75 per share) in the November/December 2012 public equity offering, asset sales of approximately $4.5 billion that were completed during the year ended December 31, 2013, the Company's $750.0 million unsecured term loan facility (which was subsequently paid off in the second quarter of 2014) and the Company's revolving credit facility.

The Company owns the building and improvements and leases the land underlying the improvements under long-term ground leases that expire beginning in 2042 and running through 2103 for nine of the operating properties acquired and discussed above. These properties are consolidated and reflected as real estate assets while the ground leases are accounted for as operating leases. The Company also leases the three master-leased properties discussed above to third party operators and earns monthly net rental income.

The Company accounted for the acquisition under the acquisition method in accordance with Accounting Standards Codification ("ASC") 805, Business Combinations (“ASC 805”), and the accounting for this business combination is complete and final. The following table summarizes the acquisition date fair values of the assets acquired and liabilities assumed, which the Company determined using Level 1, Level 2 and Level 3 inputs (amounts in thousands):

Land	$	2,239,000
Depreciable property:
Buildings and improvements	5,765,538
Furniture, fixtures and equipment	61,470
In-Place lease intangibles	304,830
Projects under development	36,583
Land held for development	244,097
Investments in unconsolidated entities	230,608
Other assets	195,260
Other liabilities	(108,997		)
Net assets acquired	$	8,968,389

The allocation of fair values of the assets acquired and liabilities assumed has changed from the allocation reported in “Note 4 – Real Estate and Lease Intangibles” in the Notes to Consolidated Financial Statements included in Part II of our Annual Report on Form 10-K for the year ended December 31, 2013 filed with the SEC on February 27, 2014. The changes to our valuation assumptions were based on more accurate information concerning the subject assets and liabilities and resulted from information not readily available at the acquisition date, final purchase price settlement with our partner in accordance with the terms of the purchase agreement and reclassification adjustments for presentation. None of these changes had a material impact on our Consolidated Financial Statements. The Company's assessment of the fair values and the allocation of the purchase price to the identified tangible and intangible assets/liabilities at March 31, 2014 was its final and best estimate of fair value. As a result, the Company did not make any changes to its allocation of fair values of the assets acquired and liabilities assumed subsequent to the allocation reported in "Note 4 – Real Estate and Lease Intangibles" in the Notes to Consolidated Financial Statements included in Part I of our Quarterly Report on Form 10-Q for the quarter ended March 31, 2014 filed with the SEC on May 8, 2014.

The fair values of investment in real estate were determined using internally developed models that were based on market assumptions and comparable sales data as well as external valuations performed by unrelated third parties. The market assumptions used as inputs to the Company’s fair value model include construction costs, leasing assumptions, growth rates, discount rates, terminal capitalization rates and development yields. The Company used data on its existing portfolio of properties and its recent acquisition and development properties, as well as similar market data from third party sources, when available, in determining these inputs (Level 2 and 3). The fair value of Noncontrolling Interests was calculated similar to the investment in real estate described above. The fair value of mortgage debt was calculated using indicative rates, leverage and coverage provided by lenders of similar loans (Level 2). The Common Shares issued to an affiliate of Lehman Brothers Holdings Inc. were valued using the quoted market price of Common Shares (Level 1).

The following table summarizes the acquisition date fair values of the above and below market ground and retail lease intangibles, which we determined using Level 2 and Level 3 inputs (amounts in thousands):

Description	Balance Sheet Location	Fair Value
Ground lease intangibles – below market	Other Assets	$	178,251
Retail lease intangibles – above market	Other Assets	1,260
Ground lease intangibles – above market	Other Liabilities	2,400
Retail lease intangibles – below market	Other Liabilities	8,040

As of June 30, 2014, the Company has incurred cumulative Archstone-related expenses of approximately $100.9 million, of which approximately $13.5 million of this total was financing-related and approximately $87.4 million was merger costs. During the six months ended June 30, 2014, the Company expensed nominal amounts of direct merger costs. During the six months ended June 30, 2013, the Company expensed $19.6 million of direct merger costs primarily related to investment banking and legal/accounting fees, which were included in other expenses in the accompanying consolidated statements of operations and comprehensive income. During the six months ended June 30, 2014 and 2013, the Company also expensed $6.2 million and $53.0 million, respectively, of indirect merger costs primarily related to severance and retention obligations, office leases and German operations/sales that were incurred through our 60% interest in unconsolidated joint ventures with AVB, which were included in (loss) from investments in unconsolidated entities in the accompanying consolidated statements of operations and comprehensive income. Finally, during the six months ended June 30, 2013, the Company also expensed $2.5 million of financing-related costs, which were included in interest expense in the accompanying consolidated statements of operations and comprehensive income.

Unaudited Pro Forma Financial Information

Equity Residential

The following table illustrates the effect on net income, earnings per share – basic and earnings per share – diluted as if the Company had consummated the Archstone Acquisition as of January 1, 2012 (amounts in thousands, except per share amounts):

	Six Months Ended		Quarter Ended
	June 30, 2013		June 30, 2013
Total revenues	$	1,256,088	$	635,078
Income from continuing operations	60,541		96,585
Discontinued operations, net	1,608,374		389,329
Net income	1,668,915		485,914
Net income available to Common Shares	1,601,368		467,237
Earnings per share - basic:
Net income available to Common Shares	$	4.45	$	1.30
Weighted average Common Shares outstanding (1)	359,509		359,653
Earnings per share - diluted:
Net income available to Common Shares	$	4.44	$	1.29
Weighted average Common Shares outstanding (1)	375,722		375,910

(1) Includes an adjustment for Common Shares issued to the public in November/December 2012 and to an affiliate of Lehman Brothers Holdings Inc. in February 2013 as partial consideration for the Archstone Acquisition.

ERP Operating Limited Partnership

The following table illustrates the effect on net income, earnings per Unit – basic and earnings per Unit – diluted as if the Operating Partnership had consummated the Archstone Acquisition as of January 1, 2012 (amounts in thousands, except per Unit amounts):

	Six Months Ended		Quarter Ended
	June 30, 2013		June 30, 2013
Total revenues	$	1,256,088	$	635,078
Income from continuing operations	60,541		96,585
Discontinued operations, net	1,608,374		389,329
Net income	1,668,915		485,914
Net income available to Units	1,668,439		485,693
Earnings per Unit - basic:
Net income available to Units	$	4.45	$	1.30
Weighted average Units outstanding (1)	373,245		373,403
Earnings per Unit - diluted:
Net income available to Units	$	4.44	$	1.29
Weighted average Units outstanding (1)	375,722		375,910

(1) Includes an adjustment for Common Shares issued to the public in November/December 2012 and to an affiliate of Lehman Brothers Holdings Inc. in February 2013 as partial consideration for the Archstone Acquisition. Concurrent with these transactions, ERPOP issued the same number of OP Units to EQR.

For the six months ended June 30, 2013, acquisition costs of $19.6 million and severance/retention and other costs of $50.9 million related to the Archstone Acquisition are not expected to have a continuing impact on the Company's financial results and therefore have been excluded from these pro forma results. The pro forma results also do not include the impact of any synergies or lower borrowing costs that the Company has or may achieve as a result of the acquisition or any strategies that management has or may consider in order to more efficiently manage the Company's operations, nor do they give pro forma effect to any other acquisitions, dispositions or capital markets transactions (excluding the equity offering in November/December 2012 which proceeds were used for the Archstone Acquisition) that the Company completed during the periods presented. These pro forma results are not necessarily indicative of the operating results that would have been obtained had the Archstone Acquisition occurred at the beginning of the periods presented, nor are they necessarily indicative of future operating results.

Other

During the six months ended June 30, 2014, the Company acquired the entire equity interest in the following from unaffiliated parties (purchase price in thousands):

	Properties	Apartment Units	Purchase Price
Rental Properties – Consolidated	3	772	$	249,610
Land Parcels – Consolidated	—	—	15,790
Total	3	772	$	265,400

During the six months ended June 30, 2014, the Company disposed of the following to unaffiliated parties (sales price in thousands):

	Properties	Apartment Units	Sales Price
Rental Properties	1	336	$	40,850
Land Parcel	—	—	8,200
Total	1	336	$	49,050

The Company recognized a net gain on sales of real estate properties of approximately $14.9 million and a net gain on sales of land parcels of approximately $0.8 million on the above sales.

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Derivative and Other Fair Value Instruments (Tables)

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Derivative Instrument Table

The following table summarizes the Company’s consolidated derivative instruments at June 30, 2014 (dollar amounts are in thousands):

	Fair Value Hedges (1)			Forward Starting Swaps (2)
Current Notional Balance	$	450,000		$	100,000
Lowest Possible Notional	$	450,000		$	100,000
Highest Possible Notional	$	450,000		$	100,000
Lowest Interest Rate	2.375		%	3.140		%
Highest Interest Rate	2.375		%	3.191		%
Earliest Maturity Date	2019			2025
Latest Maturity Date	2019			2025

(1) Fair Value Hedges – Converts outstanding fixed rate unsecured notes ($450.0 million2.375%notes due July 1, 2019) to a floating interest rate of 90-Day LIBOR plus 0.61%.

(2) Forward Starting Swaps – Designed to partially fix interest rates in advance of a planned future debt issuance. These swaps have mandatory counterparty terminations in 2016, and are targeted to 2015 issuances.

Schedule of Location and Amount of Financial Instruments on Balanace Sheet

The following tables provide a summary of the fair value measurements for each major category of assets and liabilities measured at fair value on a recurring basis and the location within the accompanying consolidated balance sheets at June 30, 2014 and December 31, 2013, respectively (amounts in thousands):

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	6/30/2014		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant  Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level  3)
Assets
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Assets	$	1,452	$	—	$	1,452	$	—
Supplemental Executive Retirement Plan	Other Assets	97,543		97,543		—		—
Total		$	98,995	$	97,543	$	1,452	$	—
Liabilities
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	Other Liabilities	$	2,346	$	—	$	2,346	$	—
Supplemental Executive Retirement Plan	Other Liabilities	97,543		97,543		—		—
Total		$	99,889	$	97,543	$	2,346	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	440,050	$	—	$	440,050	$	—

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	12/31/2013		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant  Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level  3)
Assets
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	Other Assets	$	18,710	$	—	$	18,710	$	—
Supplemental Executive Retirement Plan	Other Assets	83,845		83,845		—		—
Total		$	102,555	$	83,845	$	18,710	$	—
Liabilities
Supplemental Executive Retirement Plan	Other Liabilities	$	83,845	$	83,845	$	—	$	—
Total		$	83,845	$	83,845	$	—	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	363,144	$	—	$	363,144	$	—

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]

The following tables provide a summary of the effect of fair value hedges on the Company’s accompanying consolidated statements of operations and comprehensive income for the six months ended June 30, 2014 and 2013, respectively (amounts in thousands):

June 30, 2014 Type of Fair Value Hedge	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative		Hedged Item	Income Statement Location of Hedged Item Gain/(Loss)	Amount of Gain/(Loss) Recognized in Income on Hedged Item
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Interest Rate Swaps	Interest expense	$	1,452	Fixed rate debt	Interest expense	$	(1,452	)
Total		$	1,452			$	(1,452	)

June 30, 2013 Type of Fair Value Hedge	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative			Hedged Item	Income Statement Location of Hedged Item Gain/(Loss)	Amount of Gain/(Loss) Recognized in Income on Hedged Item
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Interest Rate Swaps	Interest expense	$	(1,524	)	Fixed rate debt	Interest expense	$	1,524
Total		$	(1,524	)			$	1,524

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

The following tables provide a summary of the effect of cash flow hedges on the Company’s accompanying consolidated statements of operations and comprehensive income for the six months ended June 30, 2014 and 2013, respectively (amounts in thousands):

	Effective Portion							Ineffective Portion
June 30, 2014 Type of Cash Flow Hedge	Amount of Gain/(Loss) Recognized in OCI on Derivative			Location of Gain/ (Loss) Reclassified from Accumulated OCI into Income	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income			Location of Gain/(Loss) Recognized in Income  on Derivative	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps/Treasury Locks	$	(21,790	)	Interest expense	$	(8,335	)	Interest expense	$	91
Total	$	(21,790	)		$	(8,335	)		$	91

	Effective Portion						Ineffective Portion
June 30, 2013 Type of Cash Flow Hedge	Amount of Gain/(Loss) Recognized in OCI on Derivative		Location of Gain/ (Loss) Reclassified from Accumulated OCI into Income	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income			Location of Gain/(Loss) Recognized in Income  on Derivative	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps/Treasury Locks	$	12,337	Interest expense	$	(12,098	)	N/A	$	—
Total	$	12,337		$	(12,098	)		$	—

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Debt Notes (Details) (USD $)	6 Months Ended			6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Mar. 31, 2013 Term Loan [Member]	Jun. 30, 2014 2.375% Notes [Member]	Jun. 30, 2014 4.50% Notes [Member]	Jun. 30, 2014 Unsecured Debt [Member]
Debt Instrument [Line Items]
Notes, net	$ 5,923,952,000	$ 5,477,088,000
Term Loan Principal Amount			750,000,000
Proceeds from Issuance of Unsecured Debt				450,000,000	750,000,000
Debt Instrument, Interest Rate, Stated Percentage				2.375%	4.50%
Proceeds from Debt, Net of Issuance Costs				$ 449,600,000	$ 744,700,000
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum				2.52%	4.57%
Debt Instrument, Maturity Date Range, End	Dec. 31, 2044
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	0.03%					2.375%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	7.25%					7.57%
Weighted Average Interest Rate	4.97%

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Derivative and Other Fair Value Instruments

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Derivatives and Fair Value [Text Block]

9. Derivative and Other Fair Value Instruments

The valuation of financial instruments requires the Company to make estimates and judgments that affect the fair value of the instruments. The Company, where possible, bases the fair values of its financial instruments, including its derivative instruments, on listed market prices and third party quotes. Where these are not available, the Company bases its estimates on current instruments with similar terms and maturities or on other factors relevant to the financial instruments.

The carrying values of the Company’s mortgage notes payable and unsecured notes were approximately $5.2 billion and $5.9 billion, respectively, at June 30, 2014. The fair values of the Company’s mortgage notes payable and unsecured notes were approximately $5.2 billion (Level 2) and $6.4 billion (Level 2), respectively, at June 30, 2014. The carrying values of the Company's mortgage notes payable and unsecured debt (including its line of credit) were approximately $5.2 billion and $5.6 billion, respectively, at December 31, 2013. The fair values of the Company’s mortgage notes payable and unsecured debt (including its line of credit) were approximately $5.1 billion (Level 2) and $5.9 billion (Level 2), respectively, at December 31, 2013. The fair values of the Company’s financial instruments (other than mortgage notes payable, unsecured notes, lines of credit and derivative instruments), including cash and cash equivalents and other financial instruments, approximate their carrying or contract values.

In the normal course of business, the Company is exposed to the effect of interest rate changes. The Company seeks to manage these risks by following established risk management policies and procedures including the use of derivatives to hedge interest rate risk on debt instruments. The Company may also use derivatives to manage its exposure to foreign exchange rates or manage commodity prices in the daily operations of the business.

The following table summarizes the Company’s consolidated derivative instruments at June 30, 2014 (dollar amounts are in thousands):

	Fair Value Hedges (1)			Forward Starting Swaps (2)
Current Notional Balance	$	450,000		$	100,000
Lowest Possible Notional	$	450,000		$	100,000
Highest Possible Notional	$	450,000		$	100,000
Lowest Interest Rate	2.375		%	3.140		%
Highest Interest Rate	2.375		%	3.191		%
Earliest Maturity Date	2019			2025
Latest Maturity Date	2019			2025

(1) Fair Value Hedges – Converts outstanding fixed rate unsecured notes ($450.0 million2.375%notes due July 1, 2019) to a floating interest rate of 90-Day LIBOR plus 0.61%.

(2) Forward Starting Swaps – Designed to partially fix interest rates in advance of a planned future debt issuance. These swaps have mandatory counterparty terminations in 2016, and are targeted to 2015 issuances.

A three-level valuation hierarchy exists for disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The three levels are defined as follows:

• Level 1 – Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.

• Level 2 – Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

• Level 3 – Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

The Company’s derivative positions are valued using models developed by the respective counterparty as well as models developed internally by the Company that use as their basis readily observable market parameters (such as forward yield curves and credit default swap data). Employee holdings other than Common Shares within the supplemental executive retirement plan (the “SERP”) are valued using quoted market prices for identical assets and are included in other assets and other liabilities on the consolidated balance sheets. Redeemable Noncontrolling Interests – Operating Partnership/Redeemable Limited Partners are valued using the quoted market price of Common Shares. The fair values disclosed for mortgage notes payable and unsecured debt (including its line of credit) were calculated using indicative rates provided by lenders of similar loans in the case of mortgage notes payable and the private unsecured debt (including its line of credit) and quoted market prices for each underlying issuance in the case of the public unsecured notes.

The following tables provide a summary of the fair value measurements for each major category of assets and liabilities measured at fair value on a recurring basis and the location within the accompanying consolidated balance sheets at June 30, 2014 and December 31, 2013, respectively (amounts in thousands):

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	6/30/2014		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant  Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level  3)
Assets
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Assets	$	1,452	$	—	$	1,452	$	—
Supplemental Executive Retirement Plan	Other Assets	97,543		97,543		—		—
Total		$	98,995	$	97,543	$	1,452	$	—
Liabilities
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	Other Liabilities	$	2,346	$	—	$	2,346	$	—
Supplemental Executive Retirement Plan	Other Liabilities	97,543		97,543		—		—
Total		$	99,889	$	97,543	$	2,346	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	440,050	$	—	$	440,050	$	—

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	12/31/2013		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant  Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level  3)
Assets
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	Other Assets	$	18,710	$	—	$	18,710	$	—
Supplemental Executive Retirement Plan	Other Assets	83,845		83,845		—		—
Total		$	102,555	$	83,845	$	18,710	$	—
Liabilities
Supplemental Executive Retirement Plan	Other Liabilities	$	83,845	$	83,845	$	—	$	—
Total		$	83,845	$	83,845	$	—	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	363,144	$	—	$	363,144	$	—

The following tables provide a summary of the effect of fair value hedges on the Company’s accompanying consolidated statements of operations and comprehensive income for the six months ended June 30, 2014 and 2013, respectively (amounts in thousands):

June 30, 2014 Type of Fair Value Hedge	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative		Hedged Item	Income Statement Location of Hedged Item Gain/(Loss)	Amount of Gain/(Loss) Recognized in Income on Hedged Item
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Interest Rate Swaps	Interest expense	$	1,452	Fixed rate debt	Interest expense	$	(1,452	)
Total		$	1,452			$	(1,452	)

June 30, 2013 Type of Fair Value Hedge	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain/(Loss) Recognized in Income on Derivative			Hedged Item	Income Statement Location of Hedged Item Gain/(Loss)	Amount of Gain/(Loss) Recognized in Income on Hedged Item
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Interest Rate Swaps	Interest expense	$	(1,524	)	Fixed rate debt	Interest expense	$	1,524
Total		$	(1,524	)			$	1,524

The following tables provide a summary of the effect of cash flow hedges on the Company’s accompanying consolidated statements of operations and comprehensive income for the six months ended June 30, 2014 and 2013, respectively (amounts in thousands):

	Effective Portion							Ineffective Portion
June 30, 2014 Type of Cash Flow Hedge	Amount of Gain/(Loss) Recognized in OCI on Derivative			Location of Gain/ (Loss) Reclassified from Accumulated OCI into Income	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income			Location of Gain/(Loss) Recognized in Income  on Derivative	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps/Treasury Locks	$	(21,790	)	Interest expense	$	(8,335	)	Interest expense	$	91
Total	$	(21,790	)		$	(8,335	)		$	91

	Effective Portion						Ineffective Portion
June 30, 2013 Type of Cash Flow Hedge	Amount of Gain/(Loss) Recognized in OCI on Derivative		Location of Gain/ (Loss) Reclassified from Accumulated OCI into Income	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income			Location of Gain/(Loss) Recognized in Income  on Derivative	Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps/Treasury Locks	$	12,337	Interest expense	$	(12,098	)	N/A	$	—
Total	$	12,337		$	(12,098	)		$	—

As of June 30, 2014 and December 31, 2013, there were approximately $169.3 million and $155.8 million in deferred losses, net, included in accumulated other comprehensive (loss), respectively, related to derivative instruments. Based on the estimated fair values of the net derivative instruments at June 30, 2014, the Company may recognize an estimated $22.0 million of accumulated other comprehensive (loss) as additional interest expense during the twelve months ending June 30, 2015.

In June 2014, the Company paid a net $2.0 million to settle seven forward starting ten-year swaps in conjunction with the issuance of $750.0 million of thirty-year fixed rate public notes. The ineffective portion of approximately $0.1 million was recorded as a decrease to interest expense and accrued interest of approximately $1.3 million was recorded as an increase to interest expense. The remaining amount of approximately $0.8 million will be deferred as a component of accumulated other comprehensive (loss) and recognized as an increase to interest expense over the first nine years and ten months of the notes.

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Subsequent Events/Other

6 Months Ended

Jun. 30, 2014

Subsequent Events Other [Abstract]

Subsequent Events/Other

14. Subsequent Events/Other

Subsequent Events

Subsequent to June 30, 2014, the Company:

• Acquired one land parcel for $13.0 million;

• Repaid $60.7 million in mortgage loans; and

• Closed on the sale of its unconsolidated interest in the remaining Residual JV wholly-owned German real estate assets that were acquired as part of the Archstone Acquisition. With this sale, all German real estate assets have now been sold.

Other

During the six months ended June 30, 2014 and 2013, the Company incurred charges of $0.1 million and $0.1 million, respectively, related to property acquisition costs, such as survey, title and legal fees, on the acquisition of operating properties (excluding the Archstone Transaction) and $1.5 million and $3.4 million, respectively, related to the write-off of various pursuit and out-of-pocket costs for terminated acquisition, disposition and development transactions. These costs, totaling $1.6 million and $3.5 million, respectively, are included in other expenses in the accompanying consolidated statements of operations and comprehensive income. See Note 4 for details on the property acquisition costs related to the Archstone Transaction.

During the six months ended June 30, 2014, the Company received $2.3 million for the settlement of various litigation/insurance claims, which are included in interest and other income in the accompanying consolidated statements of operations and comprehensive income.

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Deposits - Restricted (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Restricted Cash and Cash Equivalents Items [Line Items]
Earnest Money On Pending Acquisitions	$ 830	$ 4,514
Restricted deposits on real estate investments	36,476	53,771
Resident security and utility deposits	46,597	44,777
Other Restricted Cash	505	505
Restricted Cash and Cash Equivalents	84,408	103,567
Escrow deposits for real estate taxes and insurance	3,500	3,687
Replacement Reserve Escrow	3,469	4,229
Principal fund reserves/sinking funds	37,448	33,868
Escrow deposits - other	852	852
Escrow Deposits For Mortgage And Replacement Reserves	$ 45,269	$ 42,636

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Equity, Capital and Other Interests Redeemable (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Redeemable Noncontrolling Interests - Operating Partnership	$ 440,050	$ 363,144
Change in market value	80,615
Change in carrying value	(3,709)
Limited Partners Change In Redemption Value	80,615
Limited Partners Change In Carrying Value	$ (3,709)

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CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
REVENUES
Rental income	$ 649,766	$ 614,544	$ 1,280,491	$ 1,117,106
Fee and asset management	2,802	2,673	5,519	4,833
Total revenues	652,568	617,217	1,286,010	1,121,939
EXPENSES
Property and maintenance	115,388	113,501	240,961	212,030
Real estate taxes and insurance	83,055	76,742	165,149	141,837
Property management	20,555	22,031	42,673	44,520
Fee and asset management	1,378	1,577	3,040	3,223
Depreciation	190,136	323,304	375,303	519,526
General and administrative	13,752	16,085	31,328	32,580
Total expenses	424,264	553,240	858,454	953,716
Operating Income	228,304	63,977	427,556	168,223
Interest and other income	2,032	432	2,637	752
Other expenses	(1,533)	(1,631)	(2,190)	(23,350)
Interest:
Expense incurred, net	(115,924)	(122,950)	(228,973)	(317,417)
Amortization of deferred financing costs	(3,134)	(4,353)	(5,926)	(11,301)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain on sales of land parcels, discontinued operations and net gain on sales of real estate properties	109,745	(64,525)	193,104	(183,093)
Income and other tax (expense) benefit	(646)	(428)	(886)	(833)
(Loss) from investments in unconsolidated entities	(7,616)	(8,174)	(9,025)	(54,540)
Net gain on sales of land parcels	824	14,616	794	14,616
Income (loss) from continuing operations	102,307	(58,511)	183,987	(223,850)
Discontinued operations, net	510	395,243	1,562	1,621,616
Income before net gain on sales of real estate properties	102,817	336,732	185,549	1,397,766
Net gain on sales of real estate properties	14,903	0	14,903	0
Net income	117,720	336,732	200,452	1,397,766
Net (income) loss attributable to Noncontrolling Interests:
Net (Income) loss Attributable to Noncontrolling Interest	(4,442)	(12,788)	(7,535)	(56,111)
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(588)	815	(1,092)	790
Net income attributable to controlling interests	112,690	324,759	191,825	1,342,445
Preferred distributions	(1,036)	(1,036)	(2,072)	(2,072)
Net income available to Common Shares	$ 111,654	$ 323,723	$ 189,753	$ 1,340,373
Earnings per share - basic:
Income (loss) from continuing operations available to Common Shares	$ 0.308	$ (0.157)	$ 0.522	$ (0.620)
Net income available to Common Shares	$ 0.309	$ 0.900	$ 0.526	$ 3.844
Weighted average Common Shares outstanding	360,809	359,653	360,641	348,654
Earnings per share - diluted:
Income (loss) from continuing operations available to Common Shares	$ 0.307	$ (0.157)	$ 0.520	$ (0.620)
Net income available to Common Shares	$ 0.308	$ 0.900	$ 0.524	$ 3.844
Weighted average Common Shares outstanding	377,118	359,653	376,780	348,654
Distributions declared per Common Share outstanding	$ 0.50	$ 0.40	$ 1.00	$ 0.80

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CONSOLIDATED STATEMENTS OF CASH FLOWS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 200,452	$ 1,397,766
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	375,303	550,488
Amortization of deferred financing costs	5,926	11,529
Amortization of Intangible Assets	1,530	1,216
Amortization of discounts and premiums on debt	(5,876)	(23,031)
Amortization of deferred settlements on derivative instruments	8,068	11,830
Write-off of pursuit costs	1,492	3,365
Income Loss from Investments in Unconsolidated Entities Adjustment	9,025	54,540
Distributions from unconsolidated entities - return on capital	2,390	588
Net (gain) on sales of discontinued operations	(224)	(1,588,874)
Net (gain) on sales of real estate properties	(14,903)	0
Unrealized (gain) loss on derivative instruments	(90)	24
Compensation paid with Company Common Shares	21,905	22,089
Changes in assets and liabilities:
(Increase) in deposits – restricted	(1,820)	(12,220)
Decrease in mortgage deposits	187	789
(Increase) in other assets	(7,745)	(4,695)
Increase in accounts payable and accrued expenses	38,951	25,956
Increase (decrease) in accrued interest payable	80	(1,396)
(Decrease) in other liabilities	(17,237)	(11,449)
Increase (decrease) in security deposits	2,916	(6,080)
Net cash provided by operating activities	619,536	417,819
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments to Acquire Businesses, Net of Cash Acquired	0	(4,000,875)
Investment in real estate - acquisitions	(265,466)	(108,308)
Investment in real estate - development/other	(245,657)	(154,576)
Improvements to real estate	(76,912)	(57,253)
Additions to non-real estate property	(1,818)	(2,801)
Interest capitalized for real estate and unconsolidated entities under development	(25,037)	(20,006)
Proceeds from disposition of real estate, net	48,359	3,764,000
Investments in unconsolidated entities	(9,554)	(53,687)
Proceeds From Distributions Received From Unconsolidated Subsidiaries	64,669	0
Decrease in deposits on real estate acquisitions and investments, net	20,979	65,869
Decrease in mortgage deposits	760	5,089
Acquisition of Noncontrolling Interests – Partially Owned Properties	(5,501)	0
Net cash (used for) investing activities	(495,178)	(562,548)
CASH FLOWS FROM FINANCING ACTIVITIES:
Loan and bond acquisition costs	(10,881)	(18,006)
Mortgage Deposits	(3,580)	(2,208)
Mortgage notes payable:
Proceeds from Issuance of Long-term Debt	0	683
Scheduled principal repayments	(6,000)	(6,336)
Notes, net:
Proceeds from Notes Payable	1,194,277	1,245,550
Lump sum payoffs	(750,000)	(400,000)
Line of Credit Facility:
Proceeds	3,374,000	8,413,000
Repayments	(3,489,000)	(8,413,000)
(Payments on) settlement of derivative instruments	(733)	(44,013)
Proceeds from exercise of options	25,685	13,885
Payment of offering costs	0	(744)
Other financing activities, net	(33)	(33)
Contributions - Noncontrolling Interests - Partially Owned Properties	5,684	6,769
Contributions - Noncontrolling Interests - Operating Partnership	3	5
Distributions:
Noncontrolling Interests – Partially Owned Properties	(5,239)	(4,404)
Net cash (used for) financing activities	(101,760)	(315,297)
Net increase (decrease) in cash and cash equivalents	22,598	(460,026)
Cash and cash equivalents, beginning of period	53,534	612,590
Cash and cash equivalents, end of period	76,132	152,564
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	226,785	319,992
Net cash paid for income and other taxes	843	1,028
AmortizationOfDeferredFinancingCosts [Abstract]
Amortization Of Deferred Financing Costs Investment In Real Estate Net	0	1
Amortization Of Deferred Financing Costs Deferred Financing Costs Net	5,926	11,530
Amortization of discounts and premiums on debt:
Mortgage notes payable	7,011	24,083
Notes, net	1,135	1,052
Amortization of deferred settlements on derivative instruments:
Other liabilities	(267)	(268)
Losses reclassified into earnings from other comprehensive income	8,335	12,098
Loss From Investments In Unconsolidated Entities [Abstract]
Income Loss From Equity Method Investments Merger	7,354	49,507
Other Liabilities Loss From Investments in unconsolidated entities	1,671	5,033
Distributions from unconsolidated entities return on capital [Abstract]
Distributions from unconsolidated entities investments in unconsolidated entities	2,285	588
Distributions from unconsolidated entities other liabilities	105	0
Unrealized (gain) loss on derivative instruments:
Other assets	10,611	(10,753)
Notes, net	1,452	(1,523)
Other liabilities	9,728	(37)
Unrealized holding (losses) gains arising during the period	(21,881)	12,337
Acquisition of Archstone, net of cash acquired [Abstract]
Acquisition of Archstone Investment in Real Estate Net	39,929	(8,713,217)
Acquisition of Archstone Investments in Unconsolidated Entities	(33,993)	(214,677)
Acquisition of Archstone Deposits Restricted	0	(474)
Acquisition of Archstone Escrow Deposits Mortgage	0	(35,898)
Acquisition of Archstone Deferred Financing Costs	0	(25,780)
Acquisition of Archstone Other Assets	(2,586)	(203,008)
Acquisition of Archstone Mortgage Notes Payable	0	3,076,876
Acquisition of Archstone Accounts Payable And Accrued Liabilities	(146)	17,576
Acqusition of Archstone Interest Payable	0	11,256
Acquisition of Archstone Other Liabilities	(3,204)	117,391
Acquisition of Archstone Security Deposits	0	10,949
Acquisition of Archstone Common Shares Issued	0	1,929,868
Acquisition of Archstone Noncontrolling Interests Partially Owned Properties	0	28,263
Interest capitalized for real estate and unconsolidated entities under development:
Investment in real estate, net	(25,002)	(19,195)
Investments in unconsolidated entities	(35)	(811)
Investments in unconsolidated entities [Abstract]
Investments in unconsolidated entities	2,354	4,371
Investments in unconsolidated entities other liabilities	7,200	49,316
Other:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(1,718)	(941)
OPERATING PARTNERSHIP
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	200,452	1,397,766
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	375,303	550,488
Amortization of deferred financing costs	5,926	11,529
Amortization of Intangible Assets	1,530	1,216
Amortization of discounts and premiums on debt	(5,876)	(23,031)
Amortization of deferred settlements on derivative instruments	8,068	11,830
Write-off of pursuit costs	1,492	3,365
Income Loss from Investments in Unconsolidated Entities Adjustment	9,025	54,540
Distributions from unconsolidated entities - return on capital	2,390	588
Net (gain) on sales of land parcels	(794)	(14,616)
Net (gain) on sales of discontinued operations	(224)	(1,588,874)
Net (gain) on sales of real estate properties	(14,903)	0
Unrealized (gain) loss on derivative instruments	(90)	24
Compensation paid with Company Common Shares	21,905	22,089
Changes in assets and liabilities:
(Increase) in deposits – restricted	(1,820)	(12,220)
Decrease in mortgage deposits	187	789
(Increase) in other assets	(7,745)	(4,695)
Increase in accounts payable and accrued expenses	38,951	25,956
Increase (decrease) in accrued interest payable	80	(1,396)
(Decrease) in other liabilities	(17,237)	(11,449)
Increase (decrease) in security deposits	2,916	(6,080)
Net cash provided by operating activities	619,536	417,819
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments to Acquire Businesses, Net of Cash Acquired	0	(4,000,875)
Investment in real estate - acquisitions	(265,466)	(108,308)
Investment in real estate - development/other	(245,657)	(154,576)
Improvements to real estate	(76,912)	(57,253)
Additions to non-real estate property	(1,818)	(2,801)
Interest capitalized for real estate and unconsolidated entities under development	(25,037)	(20,006)
Proceeds from disposition of real estate, net	48,359	3,764,000
Investments in unconsolidated entities	(9,554)	(53,687)
Proceeds From Distributions Received From Unconsolidated Subsidiaries	64,669	0
Decrease in deposits on real estate acquisitions and investments, net	20,979	65,869
Decrease in mortgage deposits	760	5,089
Acquisition of Noncontrolling Interests – Partially Owned Properties	(5,501)	0
Net cash (used for) investing activities	(495,178)	(562,548)
CASH FLOWS FROM FINANCING ACTIVITIES:
Loan and bond acquisition costs	(10,881)	(18,006)
Mortgage Deposits	(3,580)	(2,208)
Mortgage notes payable:
Proceeds from Issuance of Long-term Debt	0	683
Lump sum payoffs	(3,064)	(697,897)
Scheduled principal repayments	(6,000)	(6,336)
Notes, net:
Proceeds from Notes Payable	1,194,277	1,245,550
Lump sum payoffs	(750,000)	(400,000)
Line of Credit Facility:
Proceeds	3,374,000	8,413,000
Repayments	(3,489,000)	(8,413,000)
(Payments on) settlement of derivative instruments	(733)	(44,013)
Stock Issued During Period, Value, Employee Stock Purchase Plan	2,218	2,363
Proceeds from exercise of options	25,685	13,885
Payments For Repurchase Of Op Units	(1,777)	0
Payment of offering costs	0	(744)
Other financing activities, net	(33)	(33)
Contributions - Noncontrolling Interests - Partially Owned Properties	5,684	6,769
Contributions - Noncontrolling Interests - Operating Partnership	3	5
Distributions:
OP Units - General Partner	(414,843)	(393,347)
Preference Units	(2,072)	(1,036)
OP Units - Limited Partners	(16,405)	(16,528)
Noncontrolling Interests – Partially Owned Properties	(5,239)	(4,404)
Net cash (used for) financing activities	(101,760)	(315,297)
Net increase (decrease) in cash and cash equivalents	22,598	(460,026)
Cash and cash equivalents, beginning of period	53,534	612,590
Cash and cash equivalents, end of period	76,132	152,564
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	226,785	319,992
Net cash paid for income and other taxes	843	1,028
AmortizationOfDeferredFinancingCosts [Abstract]
Amortization Of Deferred Financing Costs Investment In Real Estate Net	0	(1)
Amortization Of Deferred Financing Costs Deferred Financing Costs Net	5,926	11,530
Amortization of discounts and premiums on debt:
Mortgage notes payable	(7,011)	(24,083)
Notes, net	1,135	1,052
Amortization of deferred settlements on derivative instruments:
Other liabilities	(267)	(268)
Losses reclassified into earnings from other comprehensive income	8,335	12,098
Loss From Investments In Unconsolidated Entities [Abstract]
Income Loss From Equity Method Investments Merger	7,354	49,507
Other Liabilities Loss From Investments in unconsolidated entities	1,671	5,033
Distributions from unconsolidated entities return on capital [Abstract]
Distributions from unconsolidated entities investments in unconsolidated entities	2,285	588
Distributions from unconsolidated entities other liabilities	105	0
Unrealized (gain) loss on derivative instruments:
Other assets	10,611	(10,753)
Notes, net	1,452	(1,523)
Other liabilities	9,728	(37)
Unrealized holding (losses) gains arising during the period	(21,881)	12,337
Acquisition of Archstone, net of cash acquired [Abstract]
Acquisition of Archstone Investment in Real Estate Net	39,929	(8,713,217)
Acquisition of Archstone Investments in Unconsolidated Entities	(33,993)	(214,677)
Acquisition of Archstone Deposits Restricted	0	(474)
Acquisition of Archstone Escrow Deposits Mortgage	0	(35,898)
Acquisition of Archstone Deferred Financing Costs	0	(25,780)
Acquisition of Archstone Other Assets	(2,586)	(203,008)
Acquisition of Archstone Mortgage Notes Payable	0	3,076,876
Acquisition of Archstone Accounts Payable And Accrued Liabilities	(146)	17,576
Acqusition of Archstone Interest Payable	0	11,256
Acquisition of Archstone Other Liabilities	(3,204)	117,391
Acquisition of Archstone Security Deposits	0	10,949
Acquisition of Archstone Common Shares Issued	0	1,929,868
Acquisition of Archstone Noncontrolling Interests Partially Owned Properties	0	28,263
Interest capitalized for real estate and unconsolidated entities under development:
Investment in real estate, net	(25,002)	(19,195)
Investments in unconsolidated entities	(35)	(811)
Investments in unconsolidated entities [Abstract]
Investments in unconsolidated entities	(2,354)	(4,371)
Investments in unconsolidated entities other liabilities	(7,200)	(49,316)
Other:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	$ (1,718)	$ (941)

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Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
REVENUES
Disposal Group Including Discontinued Operation Rental Income	$ 252		$ 26,174		$ 1,275		$ 107,956
Disposal Group, Including Discontinued Operation, Revenue	252		26,174		1,275		107,956
EXPENSES (1)
Disposal Group Including Discontinued Operation Property And Maintenance	(89)	[1]	11,025	[1]	(41)	[1]	31,449	[1]
Disposal Group Including Discontinued Operation Real Estate Taxes And Insurance	(19)	[1]	2,273	[1]	(6)	[1]	10,867	[1]
Disposal Group Including Discontinued Operations Property Management	0		0	[1]	0		1	[1]
Disposal Group Including Discontinued Operation Depreciation	0	[1]	7,146	[1]	0	[1]	30,962	[1]
Disposal Group Including Discontinued Operation General And Administrative	46	[1]	65	[1]	51	[1]	73	[1]
Disposal Group, Including Discontinued Operation, Operating Expense	(62)	[1]	20,509	[1]	4	[1]	73,352	[1]
Disposal Group, Including Discontinued Operation, Operating Income (Loss)	314		5,665		1,271		34,604
Disposal Group Including Discontinued Operation Interest And Other Income	45		38		80		90
Disposal Group Including Discontinued Operation Other Expenses	0		(1)		0		(3)
Interest (2)
Expense Incurred, Net	0	[2]	(6)	[2]	0	[2]	(1,258)	[2]
Disposal Group Including Discontinued Operation Amortization Of Deferred Financing Costs	0	[2]	0	[2]	0	[2]	(228)	[2]
Discontinued Operation, Tax Effect of Discontinued Operation	(2)		(405)		(13)		(463)
Income Loss From Discontinued Operations	357		5,291		1,338		32,742
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	153		389,952		224		1,588,874
Discontinued operations, net	$ 510		$ 395,243		$ 1,562		$ 1,621,616

[1] Includes expenses paid in the current period for properties sold in prior periods related to the Company’s period of ownership.

[2] Includes only interest expense specific to secured mortgage notes payable for properties sold.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2014

Summary of Significant Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) and certain reclassifications considered necessary for a fair presentation have been included. Certain reclassifications have been made to the prior period financial statements in order to conform to the current year presentation. These reclassifications did not have an impact on net income previously reported. Operating results for the six months ended June 30, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014.

In preparation of the Company’s financial statements in conformity with accounting principles generally accepted in the United States, management makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.

The balance sheets at December 31, 2013 have been derived from the audited financial statements at that date but do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.

For further information, including definitions of capitalized terms not defined herein, refer to the consolidated financial statements and footnotes thereto included in the Company’s and the Operating Partnership's annual report on Form 10-K for the year ended December 31, 2013.

Income and Other Taxes

Income and Other Taxes

Due to the structure of EQR as a REIT and the nature of the operations of its operating properties, no provision for federal income taxes has been made at the EQR level. In addition, ERPOP generally is not liable for federal income taxes as the partners recognize their proportionate share of income or loss in their tax returns; therefore no provision for federal income taxes has been made at the ERPOP level. Historically, the Company has generally only incurred certain state and local income, excise and franchise taxes. The Company has elected Taxable REIT Subsidiary (“TRS”) status for certain of its corporate subsidiaries and as a result, these entities will incur both federal and state income taxes on any taxable income of such entities after consideration of any net operating losses.

Deferred tax assets and liabilities applicable to the TRS are recognized for future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. These assets and liabilities are measured using enacted tax rates for which the temporary differences are expected to be recovered or settled. The effects of changes in tax rates on deferred tax assets and liabilities are recognized in earnings in the period enacted. The Company’s deferred tax assets are generally the result of tax affected suspended interest deductions, net operating losses, differing depreciable lives on capitalized assets and the timing of expense recognition for certain accrued liabilities. As of June 30, 2014, the Company has recorded a deferred tax asset, which is fully offset by a valuation allowance due to the uncertainty in forecasting future TRS taxable income.

Other

Other

The Company is the controlling partner in various consolidated partnerships owning 19 properties and 3,752 apartment units and various completed and uncompleted development properties having a noncontrolling interest book value of $125.8 million at June 30, 2014. The Company is required to make certain disclosures regarding noncontrolling interests in consolidated limited-life subsidiaries. Of the consolidated entities described above, the Company is the controlling partner in limited-life partnerships owning six properties having a noncontrolling interest deficit balance of $10.2 million. These six partnership agreements contain provisions that require the partnerships to be liquidated through the sale of their assets upon reaching a date specified in each respective partnership agreement. The Company, as controlling partner, has an obligation to cause the property owning partnerships to distribute the proceeds of liquidation to the Noncontrolling Interests in these Partially Owned Properties only to the extent that the net proceeds received by the partnerships from the sale of their assets warrant a distribution based on the partnership agreements. As of June 30, 2014, the Company estimates the value of Noncontrolling Interest distributions for these six properties would have been approximately $53.2 million (“Settlement Value”) had the partnerships been liquidated. This Settlement Value is based on estimated third party consideration realized by the partnerships upon disposition of the six Partially Owned Properties and is net of all other assets and liabilities, including yield maintenance on the mortgages encumbering the properties, that would have been due on June 30, 2014 had those mortgages been prepaid. Due to, among other things, the inherent uncertainty in the sale of real estate assets, the amount of any potential distribution to the Noncontrolling Interests in the Company's Partially Owned Properties is subject to change. To the extent that the partnerships' underlying assets are worth less than the underlying liabilities, the Company has no obligation to remit any consideration to the Noncontrolling Interests in these Partially Owned Properties.

Effective January 1, 2013, companies are required to report, in one place, information about reclassifications out of accumulated other comprehensive income ("AOCI"). Companies are also required to report changes in AOCI balances. For significant items reclassified out of AOCI to net income in their entirety in the same reporting period, reporting is required about the effect of the reclassifications on the respective line items in the statement where net income is presented. For items that are not reclassified to net income in their entirety in the same reporting period, a cross reference to other disclosures currently required under US GAAP is required in the notes. This does not have a material effect on the Company's consolidated results of operations or financial position. See Note 9 for further discussion.

Effective January 1, 2014, companies are required to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount a company agreed to pay on the basis of its arrangement among its co-obligors and any additional amount a company expects to pay on behalf of its co-obligors. Companies are required to disclose the nature and amount of the obligation as well as other information about those obligations. This does not have a material effect on the Company's consolidated results of operations or financial position.

In April 2014, the Financial Accounting Standards Board (the "FASB") issued new guidance for reporting discontinued operations. Only disposals representing a strategic shift in operations that has a major effect on a company’s operations and financial results will be presented as discontinued operations. Companies will be required to expand their disclosures about discontinued operations to provide more information on the assets, liabilities, income and expenses of the discontinued operations. Companies will also be required to disclose the pre-tax income attributable to a disposal of a significant part of a company that does not qualify for discontinued operations reporting. Application of this guidance is prospective from the date of adoption and early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued. The new standard is effective January 1, 2015 but the Company early adopted it as allowed effective January 1, 2014. Adoption of this standard did not have a material effect on the Company's overall consolidated results of operations or financial position. However, adoption will result in substantially fewer of the Company's dispositions meeting the discontinued operations qualifications. See Note 11 for further discussion.

In May 2014, the FASB issued a comprehensive new revenue recognition standard entitled Revenue from Contracts with Customers that will supersede nearly all existing revenue recognition guidance. The new standard specifically excludes lease contracts. The new standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. Companies will likely need to use more judgment and make more estimates than under current revenue recognition guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration, if any, to include in the transaction price and allocating the transaction price to each separate performance obligation. The new standard will be effective for the Company beginning on January 1, 2017 and early adoption is not permitted. The new standard may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption. The Company has not yet selected a transition method and is currently evaluating the impact of adopting the new standard on its consolidated results of operations and financial position.

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Business (Details)	Jun. 30, 2014
Noncontrolling Interest, Ownership Percentage by Parent	96.20%
Number of Real Estate Properties	397
Number of States in which Entity Operates	12
Number of Units in Real Estate Property	111,491
Consolidated Entities [Member]
Number of Real Estate Properties	369
Number of Units in Real Estate Property	100,210
Master-Leased Properties [Member]
Number of Real Estate Properties	3
Number of Units in Real Estate Property	853
Consolidated Properties [Member]
Number of Real Estate Properties	19
Number of Units in Real Estate Property	3,752
Unconsolidated Properties [Member]
Number of Real Estate Properties	4
Number of Units in Real Estate Property	1,669
Military Housing [Member]
Number of Real Estate Properties	2
Number of Units in Real Estate Property	5,007

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Debt

6 Months Ended

Jun. 30, 2014

Debt Disclosure [Abstract]

Debt Disclosure [Text Block]

8.    Debt

EQR does not have any indebtedness as all debt is incurred by the Operating Partnership. EQR guarantees the Operating Partnership’s revolving credit facility up to the maximum amount and for the full term of the facility.

Mortgage Notes Payable

As of June 30, 2014, the Company had outstanding mortgage debt of approximately $5.2 billion.

During the six months ended June 30, 2014, the Company:

▪ Repaid $9.1 million of mortgage loans.

As of June 30, 2014, the Company had $700.5 million of secured debt subject to third party credit enhancement.

As of June 30, 2014, scheduled maturities for the Company’s outstanding mortgage indebtedness were at various dates through May 1, 2061. At June 30, 2014, the interest rate range on the Company’s mortgage debt was 0.03% to 7.25%. During the six months ended June 30, 2014, the weighted average interest rate on the Company’s mortgage debt was 4.23%.

Notes

As of June 30, 2014, the Company had outstanding unsecured notes of approximately $5.9 billion.

During the six months ended June 30, 2014, the Company:

▪ Repaid its $750.0 million unsecured term loan facility in conjunction with the note issuances discussed below;

▪ Issued $450.0 million of five-year 2.375% fixed rate public notes, receiving net proceeds of $449.6 million before underwriting fees and other expenses, at an all-in effective interest rate of 2.52% and swapped the notes to a floating interest rate in conjunction with the issuance (see Note 9 for further discussion); and

▪ Issued $750.0 million of thirty-year 4.50% fixed rate public notes, receiving net proceeds of $744.7 million before underwriting fees, hedge termination costs and other expenses, at an all-in effective interest rate of 4.57% after termination of various forward starting swaps in conjunction with the issuance (see Note 9 for further discussion).

As of June 30, 2014, scheduled maturities for the Company’s outstanding notes were at various dates through 2044. At June 30, 2014, the interest rate range on the Company’s notes was 2.375% to 7.57%. During the six months ended June 30, 2014, the weighted average interest rate on the Company’s notes was 4.97%.

Lines of Credit

On January 11, 2013, the Company replaced its existing $1.75 billion facility with a $2.5 billion unsecured revolving credit facility maturing April 1, 2018. The Company has the ability to increase available borrowings by an additional $500.0 million by adding additional banks to the facility or obtaining the agreement of existing banks to increase their commitments. The interest rate on advances under the facility will generally be LIBOR plus a spread (currently 1.05%) and the Company pays an annual facility fee (currently 15 basis points). Both the spread and the facility fee are dependent on the credit rating of the Company's long-term debt.

As of June 30, 2014, the amount available on the credit facility was $2.47 billion (net of $34.8 million which was restricted/dedicated to support letters of credit). During the six months ended June 30, 2014, the weighted average interest rate was 0.96%.