10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2019

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)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Shares of Beneficial Interest, $0.01 Par Value (Equity Residential)	EQR	New York Stock Exchange
7.57% Notes due August 15, 2026 (ERP Operating Limited Partnership)	N/A	New York Stock Exchange

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 ☒  No ☐ ERP Operating Limited Partnership  Yes ☒  No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).

Equity Residential  Yes ☒  No ☐ ERP Operating Limited Partnership  Yes ☒  No ☐

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

Equity Residential:

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Small reporting company	☐
Emerging growth company	☐

ERP Operating Limited Partnership:

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒	Small reporting company	☐
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Equity Residential  ☐ ERP Operating Limited Partnership  ☐

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 ☒ ERP Operating Limited Partnership  Yes ☐  No ☒

The number of EQR Common Shares of Beneficial Interest, $0.01 par value, outstanding on July 26, 2019 was 370,852,718.

EXPLANATORY NOTE

This report combines the reports on Form 10-Q for the quarterly period ended June 30, 2019 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, 2019 owned an approximate 96.4% ownership interest in, ERPOP.  The remaining 3.6% interest is owned by limited partners.  As the sole general partner of ERPOP, EQR has exclusive control of ERPOP’s day-to-day management. 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 is structured as an umbrella partnership REIT (“UPREIT”) and EQR contributes all net proceeds from its various equity offerings to ERPOP.  In return for those contributions, EQR receives a number of OP Units (see definition below) in ERPOP equal to the number of Common Shares it has issued in the equity offering. The Company may acquire properties in transactions that include the issuance of OP Units as consideration for the acquired properties. Such transactions may, in certain circumstances, enable the sellers to defer in whole or in part, the recognition of taxable income or gain that might otherwise result from the sales.  This 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 because the Company maintains a one-for-one relationship between the OP Units of ERPOP issued to EQR and the outstanding 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.

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, the net proceeds of which it is obligated to contribute to ERPOP, 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 EQR (which are contributed to the capital of ERPOP in exchange for additional partnership interests in ERPOP (“OP Units”) (on a one-for-one Common Share per OP Unit basis) or additional preference units in ERPOP (on a one-for-one preferred share per preference 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 and/or commercial paper program, the issuance of secured and unsecured debt and partnership interests, and proceeds received from disposition of certain properties and joint venture interests.

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. 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 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, as amended (the “Exchange Act”), 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 ERPOP, EQR consolidates ERPOP 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, 2019 and December 31, 2018	2
Consolidated Statements of Operations and Comprehensive Income for the six months and quarters ended June 30, 2019 and 2018	3 to 4
Consolidated Statements of Cash Flows for the six months ended June 30, 2019 and 2018	5 to 7
Consolidated Statements of Changes in Equity for the six months and quarters ended June 30, 2019 and 2018	8 to 9
Financial Statements of ERP Operating Limited Partnership:
Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018	10
Consolidated Statements of Operations and Comprehensive Income for the six months and quarters ended June 30, 2019 and 2018	11 to 12
Consolidated Statements of Cash Flows for the six months ended June 30, 2019 and 2018	13 to 15
Consolidated Statements of Changes in Capital for the six months and quarters ended June 30, 2019 and 2018	16 to 17
Notes to Consolidated Financial Statements of Equity Residential and ERP Operating Limited Partnership	18 to 38
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	39 to 54
Item 3. Quantitative and Qualitative Disclosures about Market Risk	54
Item 4. Controls and Procedures	54 to 55
PART II.
Item 1. Legal Proceedings	55
Item 1A. Risk Factors	55
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	55
Item 3. Defaults Upon Senior Securities	55
Item 4. Mine Safety Disclosures	55
Item 5. Other Information	55
Item 6. Exhibits	55

EQUITY RESIDENTIAL

CONSOLIDATED BALANCE SHEETS

(Amounts in thousands except for share amounts)

(Unaudited)

	June 30,			December 31,
	2019			2018
ASSETS
Land	$	5,889,308		$	5,875,803
Depreciable property		20,824,053			20,435,901
Projects under development		171,869			109,409
Land held for development		110,545			89,909
Investment in real estate		26,995,775			26,511,022
Accumulated depreciation		(7,026,622	)		(6,696,281	)
Investment in real estate, net		19,969,153			19,814,741
Investments in unconsolidated entities		52,907			58,349
Cash and cash equivalents		251,273			47,442
Restricted deposits		58,195			68,871
Right-of-use assets		431,753			—
Other assets		227,430			404,806
Total assets	$	20,990,711		$	20,394,209
LIABILITIES AND EQUITY
Liabilities:
Mortgage notes payable, net	$	2,599,013		$	2,385,470
Notes, net		6,531,408			5,933,286
Line of credit and commercial paper		—			499,183
Accounts payable and accrued expenses		108,574			102,471
Accrued interest payable		64,158			62,622
Lease liabilities		281,620			—
Other liabilities		302,628			358,563
Security deposits		69,027			67,258
Distributions payable		218,697			206,601
Total liabilities		10,175,125			9,615,454
Commitments and contingencies
Redeemable Noncontrolling Interests – Operating Partnership		436,035			379,106
Equity:
Shareholders’ equity:
Preferred Shares of beneficial interest, $0.01 par value; 100,000,000 shares    authorized; 745,600 shares issued and outstanding as of June 30, 2019 and    December 31, 2018		37,280			37,280
Common Shares of beneficial interest, $0.01 par value; 1,000,000,000 shares    authorized; 370,838,810 shares issued and outstanding as of June 30, 2019 and    369,405,161 shares issued and outstanding as of December 31, 2018		3,708			3,694
Paid in capital		8,949,581			8,935,453
Retained earnings		1,252,809			1,261,763
Accumulated other comprehensive income (loss)		(89,849	)		(64,986	)
Total shareholders’ equity		10,153,529			10,173,204
Noncontrolling Interests:
Operating Partnership		227,320			228,738
Partially Owned Properties		(1,298	)		(2,293	)
Total Noncontrolling Interests		226,022			226,445
Total equity		10,379,551			10,399,649
Total liabilities and equity	$	20,990,711		$	20,394,209

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,
	2019			2018			2019			2018
REVENUES
Rental income	$	1,331,676		$	1,272,451		$	669,374		$	639,620
Fee and asset management		335			373			143			188
Total revenues		1,332,011			1,272,824			669,517			639,808
EXPENSES
Property and maintenance		223,531			211,946			108,461			103,744
Real estate taxes and insurance		182,888			181,396			91,446			89,482
Property management		50,765			46,928			24,369			23,484
General and administrative		29,710			28,780			14,329			12,502
Depreciation		404,723			389,251			200,508			192,942
Total expenses		891,617			858,301			439,113			422,154
Net gain (loss) on sales of real estate properties		138,835			142,162			138,856			(51	)
Operating income		579,229			556,685			369,260			217,603
Interest and other income		1,590			6,996			1,009			1,116
Other expenses		(8,392	)		(7,210	)		(5,117	)		(3,769	)
Interest:
Expense incurred, net		(203,840	)		(210,235	)		(108,902	)		(94,131	)
Amortization of deferred financing costs		(5,783	)		(5,778	)		(3,647	)		(2,099	)
Income before income and other taxes, income (loss) from investments in    unconsolidated entities and net gain (loss) on sales of land parcels		362,804			340,458			252,603			118,720
Income and other tax (expense) benefit		(484	)		(487	)		(246	)		(274	)
Income (loss) from investments in unconsolidated entities		68,058			(2,008	)		68,765			(1,031	)
Net gain (loss) on sales of land parcels		178			995			177			995
Net income		430,556			338,958			321,299			118,410
Net (income) loss attributable to Noncontrolling Interests:
Operating Partnership		(15,429	)		(12,358	)		(11,510	)		(4,299	)
Partially Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Net income attributable to controlling interests		413,507			325,411			308,968			113,602
Preferred distributions		(1,545	)		(1,545	)		(772	)		(772	)
Net income available to Common Shares	$	411,962		$	323,866		$	308,196		$	112,830
Earnings per share – basic:
Net income available to Common Shares	$	1.11		$	0.88		$	0.83		$	0.31
Weighted average Common Shares outstanding		369,952			367,865			370,342			367,930
Earnings per share – diluted:
Net income available to Common Shares	$	1.11		$	0.88		$	0.83		$	0.31
Weighted average Common Shares outstanding		385,644			383,224			386,107			383,423

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,
	2019			2018			2019			2018
Comprehensive income:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Other comprehensive income (loss):
Other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period		(33,765	)		11,995			(19,345	)		5,908
Losses reclassified into earnings from other comprehensive    income		8,902			9,307			4,509			4,516
Other comprehensive income (loss)		(24,863	)		21,302			(14,836	)		10,424
Comprehensive income		405,693			360,260			306,463			128,834
Comprehensive (income) attributable to Noncontrolling Interests		(16,150	)		(14,329	)		(11,797	)		(5,190	)
Comprehensive income attributable to controlling interests	$	389,543		$	345,931		$	294,666		$	123,644

See accompanying notes

4

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2019			2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	430,556		$	338,958
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		404,723			389,251
Amortization of deferred financing costs		5,783			5,778
Amortization of above/below market lease intangibles		(35	)		2,196
Amortization of discounts and premiums on debt		17,795			3,263
Amortization of deferred settlements on derivative instruments		8,896			9,302
Amortization of right-of-use assets		6,952			—
Write-off of pursuit costs		2,987			2,066
(Income) loss from investments in unconsolidated entities		(68,058	)		2,008
Distributions from unconsolidated entities – return on capital		2,387			1,188
Net (gain) loss on sales of real estate properties		(138,835	)		(142,162	)
Net (gain) loss on sales of land parcels		(178	)		(995	)
Net (gain) loss on debt extinguishment		—			22,110
Compensation paid with Company Common Shares		16,782			17,032
Changes in assets and liabilities:
(Increase) decrease in other assets		1,610			417
Increase (decrease) in accounts payable and accrued expenses		22,435			25,396
Increase (decrease) in accrued interest payable		1,536			5,306
Increase (decrease) in lease liabilities		(1,171	)		—
Increase (decrease) in other liabilities		(25,161	)		2,549
Increase (decrease) in security deposits		1,769			1,791
Net cash provided by operating activities		690,773			685,454
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in real estate – acquisitions		(653,132	)		(200,546	)
Investment in real estate – development/other		(93,210	)		(76,635	)
Capital expenditures to real estate		(81,528	)		(85,987	)
Non-real estate capital additions		(1,466	)		(2,145	)
Interest capitalized for real estate under development		(2,679	)		(2,937	)
Proceeds from disposition of real estate, net		393,439			287,173
Investments in unconsolidated entities		(8,572	)		(3,099	)
Distributions from unconsolidated entities – return of capital		78,262			—
Purchase of investment securities and other investments		(269	)		—
Net cash provided by (used for) investing activities		(369,155	)		(84,176	)

See accompanying notes

5

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2019			2018
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt financing costs	$	(6,069	)	$	(4,354	)
Mortgage notes payable, net:
Proceeds		295,620			—
Lump sum payoffs		(95,500	)		(725,639	)
Scheduled principal repayments		(3,110	)		(3,273	)
Net gain (loss) on debt extinguishment		—			(22,110	)
Notes, net:
Proceeds		597,480			497,010
Line of credit and commercial paper:
Line of credit proceeds		1,995,000			415,000
Line of credit repayments		(1,995,000	)		(415,000	)
Commercial paper proceeds		7,775,817			4,766,050
Commercial paper repayments		(8,275,000	)		(4,720,000	)
Proceeds from (payments on) settlement of derivative instruments		(41,616	)		1,638
Proceeds from Employee Share Purchase Plan (ESPP)		1,652			2,181
Proceeds from exercise of options		48,487			2,617
Payment of offering costs		(155	)		(27	)
Other financing activities, net		(49	)		(48	)
Contributions – Noncontrolling Interests – Partially Owned Properties		4,594			125
Contributions – Noncontrolling Interests – Operating Partnership		—			1
Distributions:
Common Shares		(409,943	)		(384,315	)
Preferred Shares		(773	)		(1,545	)
Noncontrolling Interests – Operating Partnership		(14,728	)		(13,854	)
Noncontrolling Interests – Partially Owned Properties		(5,170	)		(7,620	)
Net cash provided by (used for) financing activities		(128,463	)		(613,163	)
Net increase (decrease) in cash and cash equivalents and restricted deposits		193,155			(11,885	)
Cash and cash equivalents and restricted deposits, beginning of period		116,313			100,762
Cash and cash equivalents and restricted deposits, end of period	$	309,468		$	88,877
Cash and cash equivalents and restricted deposits, end of period
Cash and cash equivalents	$	251,273		$	34,507
Restricted deposits		58,195			54,370
Total cash and cash equivalents and restricted deposits, end of period	$	309,468		$	88,877

See accompanying notes

6

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2019			2018
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	$	171,116		$	188,913
Net cash paid for income and other taxes	$	754		$	644
Amortization of deferred financing costs:
Other assets	$	1,206		$	1,206
Mortgage notes payable, net	$	2,344		$	2,552
Notes, net	$	2,233		$	2,020
Amortization of discounts and premiums on debt:
Mortgage notes payable, net	$	16,426		$	1,963
Notes, net	$	1,369		$	1,300
Amortization of deferred settlements on derivative instruments:
Other liabilities	$	(6	)	$	(5	)
Accumulated other comprehensive income	$	8,902		$	9,307
Write-off of pursuit costs:
Investment in real estate, net	$	2,947		$	2,042
Other assets	$	37		$	10
Accounts payable and accrued expenses	$	3		$	14
(Income) loss from investments in unconsolidated entities:
Investments in unconsolidated entities	$	(68,735	)	$	1,321
Other liabilities	$	677		$	687
Realized/unrealized (gain) loss on derivative instruments:
Other assets	$	2,002		$	(13,226	)
Notes, net	$	2,253		$	(2,151	)
Other liabilities	$	29,510		$	3,382
Accumulated other comprehensive income	$	(33,765	)	$	11,995
Investments in unconsolidated entities:
Investments in unconsolidated entities	$	(6,472	)	$	(2,379	)
Other liabilities	$	(2,100	)	$	(720	)
Debt financing costs:
Other assets	$	145		$	—
Mortgage notes payable, net	$	(2,237	)	$	—
Notes, net	$	(5,213	)	$	(4,354	)
Other liabilities	$	1,236		$	—
Right-of-use assets and lease liabilities initial measurement and reclassifications:
Right-of-use assets	$	(438,705	)	$	—
Other assets	$	184,116		$	—
Lease liabilities	$	282,791		$	—
Other liabilities	$	(28,202	)	$	—

See accompanying notes

7

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

(Amounts in thousands except per share data)

(Unaudited)

	Six Months Ended June 30,						Quarter Ended June 30,
	2019			2018			2019			2018
SHAREHOLDERS’ EQUITY
PREFERRED SHARES
Balance, beginning of period	$	37,280		$	37,280		$	37,280		$	37,280
Balance, end of period	$	37,280		$	37,280		$	37,280		$	37,280
COMMON SHARES, $0.01 PAR VALUE
Balance, beginning of period	$	3,694		$	3,680		$	3,705		$	3,682
Conversion of OP Units into Common Shares		2			—			—			—
Exercise of share options		10			1			3			—
Employee Share Purchase Plan (ESPP)		—			1			—			1
Share-based employee compensation expense:
Restricted shares		2			1			—			—
Balance, end of period	$	3,708		$	3,683		$	3,708		$	3,683
PAID IN CAPITAL
Balance, beginning of period	$	8,935,453		$	8,886,586		$	8,925,882		$	8,910,306
Common Share Issuance:
Conversion of OP Units into Common Shares		4,869			331			84			197
Exercise of share options		48,477			2,616			18,624			1,017
Employee Share Purchase Plan (ESPP)		1,652			2,180			526			499
Share-based employee compensation expense:
Restricted shares		7,980			5,162			3,404			2,540
Share options		1,682			8,536			889			1,198
ESPP discount		365			400			98			103
Offering costs		(155	)		(27	)		(155	)		(1	)
Supplemental Executive Retirement Plan (SERP)		(1,539	)		(538	)		(937	)		(621	)
Change in market value of Redeemable Noncontrolling Interests –    Operating Partnership		(56,974	)		(172	)		(1,953	)		(13,003	)
Adjustment for Noncontrolling Interests ownership in Operating    Partnership		7,771			110			3,119			2,949
Balance, end of period	$	8,949,581		$	8,905,184		$	8,949,581		$	8,905,184
RETAINED EARNINGS
Balance, beginning of period	$	1,261,763		$	1,403,530		$	1,155,032		$	1,415,638
Net income attributable to controlling interests		413,507			325,411			308,968			113,602
Common Share distributions		(420,916	)		(397,796	)		(210,419	)		(198,868	)
Preferred Share distributions		(1,545	)		(1,545	)		(772	)		(772	)
Balance, end of period	$	1,252,809		$	1,329,600		$	1,252,809		$	1,329,600
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
Balance, beginning of period	$	(64,986	)	$	(88,612	)	$	(75,013	)	$	(77,734	)
Accumulated other comprehensive income (loss) – derivative    instruments:
Unrealized holding gains (losses) arising during the period		(33,765	)		11,995			(19,345	)		5,908
Losses reclassified into earnings from other comprehensive income		8,902			9,307			4,509			4,516
Balance, end of period	$	(89,849	)	$	(67,310	)	$	(89,849	)	$	(67,310	)
DISTRIBUTIONS
Distributions declared per Common Share outstanding	$	1.135		$	1.08		$	0.5675		$	0.54

See accompanying notes

8

EQUITY RESIDENTIAL

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Continued)

(Amounts in thousands except per share data)

(Unaudited)

	Six Months Ended June 30,						Quarter Ended June 30,
	2019			2018			2019			2018
NONCONTROLLING INTERESTS
OPERATING PARTNERSHIP
Balance, beginning of period	$	228,738		$	226,691		$	225,081		$	234,628
Issuance of restricted units to Noncontrolling Interests		—			1			—			—
Conversion of OP Units held by Noncontrolling Interests into OP    Units held by General Partner		(4,871	)		(331	)		(84	)		(197	)
Equity compensation associated with Noncontrolling Interests		10,829			8,116			2,926			3,313
Net income attributable to Noncontrolling Interests		15,429			12,358			11,510			4,299
Distributions to Noncontrolling Interests		(15,079	)		(14,374	)		(7,474	)		(7,186	)
Change in carrying value of Redeemable Noncontrolling Interests –    Operating Partnership		45			644			(1,520	)		1,087
Adjustment for Noncontrolling Interests ownership in Operating    Partnership		(7,771	)		(110	)		(3,119	)		(2,949	)
Balance, end of period	$	227,320		$	232,995		$	227,320		$	232,995
PARTIALLY OWNED PROPERTIES
Balance, beginning of period	$	(2,293	)	$	4,708		$	(5,462	)	$	1,293
Net income attributable to Noncontrolling Interests		1,620			1,189			821			509
Contributions by Noncontrolling Interests		4,594			125			4,594			—
Distributions to Noncontrolling Interests		(5,219	)		(7,668	)		(1,251	)		(3,448	)
Balance, end of period	$	(1,298	)	$	(1,646	)	$	(1,298	)	$	(1,646	)

See accompanying notes

9

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED BALANCE SHEETS

(Amounts in thousands)

(Unaudited)

	June 30,			December 31,
	2019			2018
ASSETS
Land	$	5,889,308		$	5,875,803
Depreciable property		20,824,053			20,435,901
Projects under development		171,869			109,409
Land held for development		110,545			89,909
Investment in real estate		26,995,775			26,511,022
Accumulated depreciation		(7,026,622	)		(6,696,281	)
Investment in real estate, net		19,969,153			19,814,741
Investments in unconsolidated entities		52,907			58,349
Cash and cash equivalents		251,273			47,442
Restricted deposits		58,195			68,871
Right-of-use assets		431,753			—
Other assets		227,430			404,806
Total assets	$	20,990,711		$	20,394,209
LIABILITIES AND CAPITAL
Liabilities:
Mortgage notes payable, net	$	2,599,013		$	2,385,470
Notes, net		6,531,408			5,933,286
Line of credit and commercial paper		—			499,183
Accounts payable and accrued expenses		108,574			102,471
Accrued interest payable		64,158			62,622
Lease liabilities		281,620			—
Other liabilities		302,628			358,563
Security deposits		69,027			67,258
Distributions payable		218,697			206,601
Total liabilities		10,175,125			9,615,454
Commitments and contingencies
Redeemable Limited Partners		436,035			379,106
Capital:
Partners’ Capital:
Preference Units		37,280			37,280
General Partner		10,206,098			10,200,910
Limited Partners		227,320			228,738
Accumulated other comprehensive income (loss)		(89,849	)		(64,986	)
Total partners’ capital		10,380,849			10,401,942
Noncontrolling Interests – Partially Owned Properties		(1,298	)		(2,293	)
Total capital		10,379,551			10,399,649
Total liabilities and capital	$	20,990,711		$	20,394,209

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,
	2019			2018			2019			2018
REVENUES
Rental income	$	1,331,676		$	1,272,451		$	669,374		$	639,620
Fee and asset management		335			373			143			188
Total revenues		1,332,011			1,272,824			669,517			639,808
EXPENSES
Property and maintenance		223,531			211,946			108,461			103,744
Real estate taxes and insurance		182,888			181,396			91,446			89,482
Property management		50,765			46,928			24,369			23,484
General and administrative		29,710			28,780			14,329			12,502
Depreciation		404,723			389,251			200,508			192,942
Total expenses		891,617			858,301			439,113			422,154
Net gain (loss) on sales of real estate properties		138,835			142,162			138,856			(51	)
Operating income		579,229			556,685			369,260			217,603
Interest and other income		1,590			6,996			1,009			1,116
Other expenses		(8,392	)		(7,210	)		(5,117	)		(3,769	)
Interest:
Expense incurred, net		(203,840	)		(210,235	)		(108,902	)		(94,131	)
Amortization of deferred financing costs		(5,783	)		(5,778	)		(3,647	)		(2,099	)
Income before income and other taxes, income (loss) from investments in    unconsolidated entities and net gain (loss) on sales of land parcels		362,804			340,458			252,603			118,720
Income and other tax (expense) benefit		(484	)		(487	)		(246	)		(274	)
Income (loss) from investments in unconsolidated entities		68,058			(2,008	)		68,765			(1,031	)
Net gain (loss) on sales of land parcels		178			995			177			995
Net income		430,556			338,958			321,299			118,410
Net (income) loss attributable to Noncontrolling Interests – Partially Owned    Properties		(1,620	)		(1,189	)		(821	)		(509	)
Net income attributable to controlling interests	$	428,936		$	337,769		$	320,478		$	117,901
ALLOCATION OF NET INCOME:
Preference Units	$	1,545		$	1,545		$	772		$	772
General Partner	$	411,962		$	323,866		$	308,196		$	112,830
Limited Partners		15,429			12,358			11,510			4,299
Net income available to Units	$	427,391		$	336,224		$	319,706		$	117,129
Earnings per Unit – basic:
Net income available to Units	$	1.11		$	0.88		$	0.83		$	0.31
Weighted average Units outstanding		382,854			380,729			383,227			380,795
Earnings per Unit – diluted:
Net income available to Units	$	1.11		$	0.88		$	0.83		$	0.31
Weighted average Units outstanding		385,644			383,224			386,107			383,423

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,
	2019			2018			2019			2018
Comprehensive income:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Other comprehensive income (loss):
Other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period		(33,765	)		11,995			(19,345	)		5,908
Losses reclassified into earnings from other comprehensive    income		8,902			9,307			4,509			4,516
Other comprehensive income (loss)		(24,863	)		21,302			(14,836	)		10,424
Comprehensive income		405,693			360,260			306,463			128,834
Comprehensive (income) attributable to Noncontrolling Interests –    Partially Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Comprehensive income attributable to controlling interests	$	404,073		$	359,071		$	305,642		$	128,325

See accompanying notes

12

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2019			2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	430,556		$	338,958
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		404,723			389,251
Amortization of deferred financing costs		5,783			5,778
Amortization of above/below market lease intangibles		(35	)		2,196
Amortization of discounts and premiums on debt		17,795			3,263
Amortization of deferred settlements on derivative instruments		8,896			9,302
Amortization of right-of-use assets		6,952			—
Write-off of pursuit costs		2,987			2,066
(Income) loss from investments in unconsolidated entities		(68,058	)		2,008
Distributions from unconsolidated entities – return on capital		2,387			1,188
Net (gain) loss on sales of real estate properties		(138,835	)		(142,162	)
Net (gain) loss on sales of land parcels		(178	)		(995	)
Net (gain) loss on debt extinguishment		—			22,110
Compensation paid with Company Common Shares		16,782			17,032
Changes in assets and liabilities:
(Increase) decrease in other assets		1,610			417
Increase (decrease) in accounts payable and accrued expenses		22,435			25,396
Increase (decrease) in accrued interest payable		1,536			5,306
Increase (decrease) in lease liabilities		(1,171	)		—
Increase (decrease) in other liabilities		(25,161	)		2,549
Increase (decrease) in security deposits		1,769			1,791
Net cash provided by operating activities		690,773			685,454
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in real estate – acquisitions		(653,132	)		(200,546	)
Investment in real estate – development/other		(93,210	)		(76,635	)
Capital expenditures to real estate		(81,528	)		(85,987	)
Non-real estate capital additions		(1,466	)		(2,145	)
Interest capitalized for real estate under development		(2,679	)		(2,937	)
Proceeds from disposition of real estate, net		393,439			287,173
Investments in unconsolidated entities		(8,572	)		(3,099	)
Distributions from unconsolidated entities – return of capital		78,262			—
Purchase of investment securities and other investments		(269	)		—
Net cash provided by (used for) investing activities		(369,155	)		(84,176	)

See accompanying notes

13

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2019			2018
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt financing costs	$	(6,069	)	$	(4,354	)
Mortgage notes payable, net:
Proceeds		295,620			—
Lump sum payoffs		(95,500	)		(725,639	)
Scheduled principal repayments		(3,110	)		(3,273	)
Net gain (loss) on debt extinguishment		—			(22,110	)
Notes, net:
Proceeds		597,480			497,010
Line of credit and commercial paper:
Line of credit proceeds		1,995,000			415,000
Line of credit repayments		(1,995,000	)		(415,000	)
Commercial paper proceeds		7,775,817			4,766,050
Commercial paper repayments		(8,275,000	)		(4,720,000	)
Proceeds from (payments on) settlement of derivative instruments		(41,616	)		1,638
Proceeds from EQR’s Employee Share Purchase Plan (ESPP)		1,652			2,181
Proceeds from exercise of EQR options		48,487			2,617
Payment of offering costs		(155	)		(27	)
Other financing activities, net		(49	)		(48	)
Contributions – Noncontrolling Interests – Partially Owned Properties		4,594			125
Contributions – Limited Partners		—			1
Distributions:
OP Units – General Partner		(409,943	)		(384,315	)
Preference Units		(773	)		(1,545	)
OP Units – Limited Partners		(14,728	)		(13,854	)
Noncontrolling Interests – Partially Owned Properties		(5,170	)		(7,620	)
Net cash provided by (used for) financing activities		(128,463	)		(613,163	)
Net increase (decrease) in cash and cash equivalents and restricted deposits		193,155			(11,885	)
Cash and cash equivalents and restricted deposits, beginning of period		116,313			100,762
Cash and cash equivalents and restricted deposits, end of period	$	309,468		$	88,877
Cash and cash equivalents and restricted deposits, end of period
Cash and cash equivalents	$	251,273		$	34,507
Restricted deposits		58,195			54,370
Total cash and cash equivalents and restricted deposits, end of period	$	309,468		$	88,877

See accompanying notes

14

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2019			2018
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	$	171,116		$	188,913
Net cash paid for income and other taxes	$	754		$	644
Amortization of deferred financing costs:
Other assets	$	1,206		$	1,206
Mortgage notes payable, net	$	2,344		$	2,552
Notes, net	$	2,233		$	2,020
Amortization of discounts and premiums on debt:
Mortgage notes payable, net	$	16,426		$	1,963
Notes, net	$	1,369		$	1,300
Amortization of deferred settlements on derivative instruments:
Other liabilities	$	(6	)	$	(5	)
Accumulated other comprehensive income	$	8,902		$	9,307
Write-off of pursuit costs:
Investment in real estate, net	$	2,947		$	2,042
Other assets	$	37		$	10
Accounts payable and accrued expenses	$	3		$	14
(Income) loss from investments in unconsolidated entities:
Investments in unconsolidated entities	$	(68,735	)	$	1,321
Other liabilities	$	677		$	687
Realized/unrealized (gain) loss on derivative instruments:
Other assets	$	2,002		$	(13,226	)
Notes, net	$	2,253		$	(2,151	)
Other liabilities	$	29,510		$	3,382
Accumulated other comprehensive income	$	(33,765	)	$	11,995
Investments in unconsolidated entities:
Investments in unconsolidated entities	$	(6,472	)	$	(2,379	)
Other liabilities	$	(2,100	)	$	(720	)
Debt financing costs:
Other assets	$	145		$	—
Mortgage notes payable, net	$	(2,237	)	$	—
Notes, net	$	(5,213	)	$	(4,354	)
Other liabilities	$	1,236		$	—
Right-of-use assets and lease liabilities initial measurement and reclassifications:
Right-of-use assets	$	(438,705	)	$	—
Other assets	$	184,116		$	—
Lease liabilities	$	282,791		$	—
Other liabilities	$	(28,202	)	$	—

See accompanying notes

15

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL

(Amounts in thousands except per Unit data)

(Unaudited)

	Six Months Ended June 30,						Quarter Ended June 30,
	2019			2018			2019			2018
PARTNERS’ CAPITAL
PREFERENCE UNITS
Balance, beginning of period	$	37,280		$	37,280		$	37,280		$	37,280
Balance, end of period	$	37,280		$	37,280		$	37,280		$	37,280
GENERAL PARTNER
Balance, beginning of period	$	10,200,910		$	10,293,796		$	10,084,619		$	10,329,626
OP Unit Issuance:
Conversion of OP Units held by Limited Partners into OP Units    held by General Partner		4,871			331			84			197
Exercise of EQR share options		48,487			2,617			18,627			1,017
EQR’s Employee Share Purchase Plan (ESPP)		1,652			2,181			526			500
Share-based employee compensation expense:
EQR restricted shares		7,982			5,163			3,404			2,540
EQR share options		1,682			8,536			889			1,198
EQR ESPP discount		365			400			98			103
Net income available to Units – General Partner		411,962			323,866			308,196			112,830
OP Units – General Partner distributions		(420,916	)		(397,796	)		(210,419	)		(198,868	)
Offering costs		(155	)		(27	)		(155	)		(1	)
Supplemental Executive Retirement Plan (SERP)		(1,539	)		(538	)		(937	)		(621	)
Change in market value of Redeemable Limited Partners		(56,974	)		(172	)		(1,953	)		(13,003	)
Adjustment for Limited Partners ownership in Operating Partnership		7,771			110			3,119			2,949
Balance, end of period	$	10,206,098		$	10,238,467		$	10,206,098		$	10,238,467
LIMITED PARTNERS
Balance, beginning of period	$	228,738		$	226,691		$	225,081		$	234,628
Issuance of restricted units to Limited Partners		—			1			—			—
Conversion of OP Units held by Limited Partners into OP Units held    by General Partner		(4,871	)		(331	)		(84	)		(197	)
Equity compensation associated with Units – Limited Partners		10,829			8,116			2,926			3,313
Net income available to Units – Limited Partners		15,429			12,358			11,510			4,299
Units – Limited Partners distributions		(15,079	)		(14,374	)		(7,474	)		(7,186	)
Change in carrying value of Redeemable Limited Partners		45			644			(1,520	)		1,087
Adjustment for Limited Partners ownership in Operating Partnership		(7,771	)		(110	)		(3,119	)		(2,949	)
Balance, end of period	$	227,320		$	232,995		$	227,320		$	232,995
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
Balance, beginning of period	$	(64,986	)	$	(88,612	)	$	(75,013	)	$	(77,734	)
Accumulated other comprehensive income (loss) – derivative    instruments:
Unrealized holding gains (losses) arising during the period		(33,765	)		11,995			(19,345	)		5,908
Losses reclassified into earnings from other comprehensive    income		8,902			9,307			4,509			4,516
Balance, end of period	$	(89,849	)	$	(67,310	)	$	(89,849	)	$	(67,310	)
DISTRIBUTIONS
Distributions declared per Unit outstanding	$	1.135		$	1.08		$	0.5675		$	0.54

See accompanying notes

16

ERP OPERATING LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL (Continued)

(Amounts in thousands except per Unit data)

(Unaudited)

	Six Months Ended June 30,						Quarter Ended June 30,
	2019			2018			2019			2018
NONCONTROLLING INTERESTS
NONCONTROLLING INTERESTS – PARTIALLY OWNED    PROPERTIES
Balance, beginning of period	$	(2,293	)	$	4,708		$	(5,462	)	$	1,293
Net income attributable to Noncontrolling Interests		1,620			1,189			821			509
Contributions by Noncontrolling Interests		4,594			125			4,594			—
Distributions to Noncontrolling Interests		(5,219	)		(7,668	)		(1,251	)		(3,448	)
Balance, end of period	$	(1,298	)	$	(1,646	)	$	(1,298	)	$	(1,646	)

See accompanying notes

17

EQUITY RESIDENTIAL

ERP OPERATING LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1. Business

Equity Residential (“EQR”) is an S&P 500 company focused on the acquisition, development and management of rental apartment properties located in urban and high-density suburban markets, a business that is conducted on its behalf by ERP Operating Limited Partnership (“ERPOP”).  EQR is a Maryland real estate investment trust (“REIT”) formed in March 1993 and ERPOP is an Illinois limited partnership formed in May 1993.  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, 2019 owned an approximate 96.4% 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, the net proceeds of which it is obligated to contribute to ERPOP, 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, 2019, the Company, directly or indirectly through investments in title holding entities, owned all or a portion of 309 properties located in 10 states and the District of Columbia consisting of 79,624 apartment units.  The ownership breakdown includes (table does not include various uncompleted development properties):

	Properties		Apartment Units
Wholly Owned Properties		291		75,927
Master-Leased Properties – Consolidated		1		162
Partially Owned Properties – Consolidated		17		3,535
		309		79,624

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, 2019  are not necessarily indicative of the results that may be expected for the year ending December 31, 2019.

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, 2018 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.

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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, 2018.

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 may incur both federal and state income taxes on any taxable income of such entities after consideration of any net operating losses.

In December 2017, H.R. 1, informally titled the Tax Cuts and Jobs Act (the “Tax Act”), became law. As of June 30, 2019, the Tax Act did not have a material impact on our REIT or subsidiary entities, our ability to continue to qualify as a REIT or on our results of operations.  

Recently Issued Accounting Pronouncements

In June 2016, the Financial Accounting Standards Board (“FASB”) issued a new standard which requires companies to adopt a new approach for estimating credit losses on certain types of financial instruments, such as trade and other receivables and loans.  The standard requires entities to estimate a lifetime expected credit loss for most financial instruments, including trade receivables. In November 2018, the FASB issued an amendment excluding operating lease receivables accounted for under the new leases standard from the scope of the new credit losses standard.  The new standard will be effective for the Company beginning on January 1, 2020, with early adoption permitted beginning January 1, 2019.  The Company is currently evaluating the impact of adopting the new standard on its consolidated results of operations and financial position.

Recently Adopted Accounting Pronouncements

In May 2014, the FASB issued a comprehensive new revenue recognition standard entitled Revenue from Contracts with Customers that superseded nearly all existing revenue recognition guidance.  The new standard specifically excludes lease revenue.  The new standard may be applied retrospectively to each prior period presented or prospectively with the cumulative effect, if any, recognized as of the date of adoption.  The Company selected the modified retrospective transition method as of the date of adoption as required effective January 1, 2018.  Approximately 94% of rental income consists of revenue from leasing arrangements, which is specifically excluded from the standard.  The Company analyzed its remaining revenue streams, inclusive of fee and asset management and gains and losses on sales, and concluded these revenue streams have the same timing and pattern of revenue recognition under the new guidance, and therefore the Company had no changes in revenue recognition with the adoption of the new standard.  As such, adoption of the standard did not result in a cumulative adjustment recognized as of January 1, 2018, and the standard did not have a material impact on the Company’s consolidated financial position, results of operations, equity/capital or cash flows.

For the remaining approximately 6% of rental income that is subject to the new revenue recognition standard, the Company’s disaggregated revenue streams are disclosed in the table included in the Company’s and the Operating Partnership’s Annual Report on Form 10-K for the year ended December 31, 2018 and are comparable with the percentage of rental income for the six months and quarter ended June 30, 2019.  These revenue streams have the same timing and pattern of revenue recognition across our reportable segments, with consistent allocations between the leasing and revenue recognition standards.  

Additionally, as part of the new revenue recognition standard, the FASB issued amendments related to partial sales of real estate.  Adoption of the new partial sales standard did not result in a change of accounting for the Company related to its disposition process.  We concluded that the Company’s typical dispositions will continue to meet the criteria for sale and associated profit recognition under both new standards.

In February 2016, the FASB issued a new leases standard which sets out principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessors and lessees).  The new standard requires the following:

• Lessors – Leases are accounted for using an approach that is substantially equivalent to existing guidance for operating,

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sales-type and financing leases, but aligned with the new revenue recognition standard.  Lessors are required to allocate lease payments to separate lease and non-lease components of each lease agreement, with the non-lease components evaluated under the new revenue recognition standard.

• Lessees – Leases are accounted for using a dual approach, classifying leases as either operating or finance based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee.  This classification determines whether the lease expense is recognized on a straight-line basis over the term of the lease (for operating leases) or based on an effective interest method (for finance leases).  A lessee is also required to record a right-of-use asset and a lease liability on its balance sheet for all leases with a term of greater than 12 months regardless of their classification as operating or finance leases.  Leases with a term of 12 months or less are accounted for similar to existing guidance for operating leases.

The Company adopted this new standard as required effective January 1, 2019 using a modified retrospective method and the Company applied the new guidance as of the adoption date and elected certain practical expedients, as described below.  The standard impacted our consolidated balance sheets but did not impact our consolidated statements of operations. Right-of-use (“ROU”) assets and lease liabilities where the Company is the lessee were recognized for various corporate office leases and ground leases.  The Company recorded ROU assets and related lease liabilities to its opening balance sheet upon adoption on January 1, 2019 of $434.2 million and $278.3 million, respectively.  The Company calculated the net present value of the lease liabilities on January 1, 2019 and reclassed the following amounts from other assets and other liabilities to record our initial ROU assets (amounts in thousands):

	January 1, 2019			Balance Sheet Reclass:
Initial lease liabilities	$	278,287
Reclassifications:
Prepaid ground leases		17,886		Other Assets
Ground lease intangibles – below market, net		166,230		Other Assets
Ground lease intangibles – above market, net		(2,110	)	Other Liabilities
Straight-line rent liabilities (1)		(26,092	)	Other Liabilities
Initial right-of-use assets	$	434,201

(1) Straight-line rent liabilities relate to corporate office leases and certain ground leases.

In July 2018, the FASB issued an amendment to the new leases standard, which includes a practical expedient that provides lessors an option not to separate lease and non-lease components when certain criteria are met and instead account for those components as a single component under the new leases standard.  The amendment also provides a transition option that permits the application of the new guidance as of the adoption date rather than to all periods presented.  The Company elected the practical expedient to account for both its lease and non-lease components as a single component under the leases standard and elected the new transition option as of the date of adoption effective January 1, 2019. See Note 8 for additional discussion regarding the new lease standard.

In August 2017, the FASB issued a final standard which makes changes to the hedge accounting model to enable entities to better portray their risk management activities in the financial statements.  The new standard expands an entity’s ability to hedge nonfinancial and financial risk components, reduces complexity in fair value hedges of interest rate risk and eases certain documentation and assessment requirements.  The new standard also eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of any hedging instrument to be presented in the same income statement line as the hedged instrument.  The Company adopted this new standard as required effective January 1, 2019 and it did not have a material effect on its consolidated results of operations or financial position.

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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 restricted units) for the six months ended June 30, 2019 and 2018:

	2019			2018
Common Shares
Common Shares outstanding at January 1,		369,405,161			368,018,082
Common Shares Issued:
Conversion of OP Units		188,406			11,494
Exercise of share options		1,059,674			80,875
Employee Share Purchase Plan (ESPP)		27,131			44,858
Restricted share grants, net		158,438			123,027
Common Shares outstanding at June 30,		370,838,810			368,278,336
Units
Units outstanding at January 1,		13,904,035			13,768,438
Restricted unit grants, net		140,055			267,074
Conversion of OP Units to Common Shares		(188,406	)		(11,494	)
Units outstanding at June 30,		13,855,684			14,024,018
Total Common Shares and Units outstanding at    June 30,		384,694,494			382,302,354
Units Ownership Interest in Operating Partnership		3.6	%		3.7	%

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 restricted units, are collectively referred to as the “Noncontrolling Interests – Operating Partnership”.  Subject to certain exceptions (including the “book-up” requirements of restricted 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 cannot 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, 2019 and December 31, 2018.

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, 2019 and 2018, the Redeemable Noncontrolling Interests – Operating Partnership have a redemption value of approximately $436.0 million and $366.5 million, respectively, which represents the value of Common Shares that would be issued in exchange for the Redeemable Noncontrolling Interests – Operating Partnership Units.

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The following table presents the changes in the redemption value of the Redeemable Noncontrolling Interests – Operating Partnership for the six months ended June 30, 2019 and 2018 (amounts in thousands):

	2019			2018
Balance at January 1,	$	379,106		$	366,955
Change in market value		56,974			172
Change in carrying value		(45	)		(644	)
Balance at June 30,	$	436,035		$	366,483

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, 2019 and December 31, 2018:

				Amounts in thousands
		Annual
	Call	Dividend Per		June 30,		December 31,
	Date (1)	Share (2)		2019		2018
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; 745,600 shares issued and    outstanding as of June 30, 2019 and December 31, 2018	12/10/26	$	4.145	$	37,280	$	37,280
				$	37,280	$	37,280

(1) On or after the call 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.

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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, 2019 and 2018:

	2019			2018
General and Limited Partner Units
General and Limited Partner Units outstanding at January 1,		383,309,196			381,786,520
Issued to General Partner:
Exercise of EQR share options		1,059,674			80,875
EQR’s Employee Share Purchase Plan (ESPP)		27,131			44,858
EQR’s restricted share grants, net		158,438			123,027
Issued to Limited Partners:
Restricted unit grants, net		140,055			267,074
General and Limited Partner Units outstanding at    June 30,		384,694,494			382,302,354
Limited Partner Units
Limited Partner Units outstanding at January 1,		13,904,035			13,768,438
Limited Partner restricted unit grants, net		140,055			267,074
Conversion of Limited Partner OP Units to EQR Common    Shares		(188,406	)		(11,494	)
Limited Partner Units outstanding at June 30,		13,855,684			14,024,018
Limited Partner Units Ownership Interest in Operating    Partnership		3.6	%		3.7	%

The Limited Partners of the Operating Partnership as of June 30, 2019 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 restricted units.  Subject to certain exceptions (including the “book-up” requirements of restricted 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 cannot 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, 2019 and December 31, 2018.

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, 2019 and 2018, the Redeemable Limited Partner Units have a redemption value of approximately $436.0 million and $366.5 million, respectively, which represents the value of Common Shares that would be issued in exchange for the Redeemable Limited Partner Units.

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The following table presents the changes in the redemption value of the Redeemable Limited Partners for the six months ended June 30, 2019 and 2018 (amounts in thousands):

	2019			2018
Balance at January 1,	$	379,106		$	366,955
Change in market value		56,974			172
Change in carrying value		(45	)		(644	)
Balance at June 30,	$	436,035		$	366,483

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, 2019 and December 31, 2018:

				Amounts in thousands
		Annual
	Call	Dividend Per		June 30,		December 31,
	Date (1)	Unit (2)		2019		2018
Preference Units:
8.29% Series K Cumulative Redeemable Preference Units;    liquidation value $50 per unit; 745,600 units issued and    outstanding as of June 30, 2019 and December 31, 2018	12/10/26	$	4.145	$	37,280	$	37,280
				$	37,280	$	37,280

(1) On or after the call 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

EQR and ERPOP currently have an active universal shelf registration statement for the issuance of equity and debt securities that automatically became effective upon filing with the SEC in June 2019 and expires in June 2022.  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 has an At-The-Market (“ATM”) share offering program which allows EQR to sell Common Shares from time to time into the existing trading market at current market prices as well as through negotiated transactions.  In June 2019, the Company extended the program maturity to June 2022. EQR has the authority to issue 13.0 million shares but has not issued any shares under this program since September 2012.

The Company may repurchase up to 13.0 million Common Shares under its share repurchase program.  No open market repurchases have occurred since 2008, and no repurchases of any kind have occurred since February 2014.  As of June 30, 2019, EQR has remaining authorization to repurchase up to 13.0 million of its shares under the repurchase program.  

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4. Real Estate

The following table summarizes the carrying amounts for the Company’s investment in real estate (at cost) as of June 30, 2019 and December 31, 2018 (amounts in thousands):

	June 30, 2019			December 31, 2018
Land	$	5,889,308		$	5,875,803
Depreciable property:
Buildings and improvements		18,529,097			18,232,625
Furniture, fixtures and equipment		1,813,243			1,722,231
In-Place lease intangibles		481,713			481,045
Projects under development:
Land		25,429			25,429
Construction-in-progress		146,440			83,980
Land held for development:
Land		74,187			61,038
Construction-in-progress		36,358			28,871
Investment in real estate		26,995,775			26,511,022
Accumulated depreciation		(7,026,622	)		(6,696,281	)
Investment in real estate, net	$	19,969,153		$	19,814,741

During the six months ended June 30, 2019, the Company acquired the following from unaffiliated parties (purchase price in thousands):

	Properties		Apartment Units		Purchase Price
Rental Properties – Consolidated (1)		6		1,644	$	634,650
Land Parcels (one) (2)		—		—		16,232
Total		6		1,644	$	650,882

(1) Purchase price includes an allocation of approximately $88.1 million to land and $548.5 million to depreciable property (inclusive of capitalized closing costs).

(2) Purchase price includes an allocation of approximately $13.1 million to vacant land and $3.4 million to construction-in-progress (inclusive of capitalized closing costs).  See Note 6 for additional discussion.

During the six months ended June 30, 2019, the Company disposed of the following to unaffiliated parties (sales price in thousands):

	Properties		Apartment Units		Sales Price
Rental Properties – Consolidated		2		561	$	402,750
Rental Properties – Unconsolidated (1)		2		945		394,500
Total		4		1,506	$	797,250

(1) The Company owned a 20% interest in both unconsolidated rental properties. Sales price listed is the gross sales price. The Company received net sales proceeds of approximately $78.3 million.

The Company recognized a net gain on sales of real estate properties of approximately $138.8 million and a net gain on sales of unconsolidated entities of approximately $69.5 million on the above sales.

5. Commitments to Acquire/Dispose of Real Estate

The Company has entered into an agreement to acquire the following (purchase price in thousands):

	Properties		Apartment Units		Purchase Price
Rental Properties – Consolidated		1		398	$	189,000
Total		1		398	$	189,000

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

	Properties		Apartment Units		Sales Price
Rental Properties – Consolidated		7		940	$	336,925
Land Parcels (one)		—		—		4,150
Total		7		940	$	341,075

The closing of pending transactions is subject to certain conditions and restrictions; therefore, there can be no assurance that the transactions will be consummated or that the final terms will not differ in material respects from any agreements summarized above.  See Note 14 for discussion of the properties acquired or disposed of, if any, subsequent to June 30, 2019.

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).  

Consolidated Variable Interest Entities (“VIEs”)

In accordance with accounting standards for consolidation of VIEs, the Company consolidates ERPOP on EQR’s financial statements.  As the sole general partner of ERPOP, EQR has exclusive control of ERPOP’s day-to-day management.  The limited partners are not able to exercise substantive kick-out or participating rights.  As a result, ERPOP qualifies as a VIE.  EQR has a controlling financial interest in ERPOP and, thus, is ERPOP’s primary beneficiary.  EQR has the power to direct the activities of ERPOP that most significantly impact ERPOP’s economic performance as well as the obligation to absorb losses or the right to receive benefits from ERPOP that could potentially be significant to ERPOP.  

The Company has various equity interests in certain joint ventures owning 17 properties containing 3,535 apartment units.  The Company is the general partner or managing member of these joint ventures and is responsible for managing the operations and affairs of the joint ventures as well as making all decisions regarding the businesses of the joint ventures.  The limited partners or non-managing members are not able to exercise substantive kick-out or participating rights.  As a result, the joint ventures qualify as VIEs.  The Company has a controlling financial interest in the VIEs and, thus, is the VIEs’ primary beneficiary.  The Company has both the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance as well as the obligation to absorb losses or the right to receive benefits from the VIEs that could potentially be significant to the VIEs.  As a result, the joint ventures are required to be consolidated on the Company’s financial statements.  

During the six months ended June 30, 2019, the Company entered into a consolidated joint venture which is owned 90% by the Company and 10% by its joint venture partner, who is the general partner.  The joint venture has been deemed to be a VIE and is consolidated due to the Company being the primary beneficiary.  The joint venture owns a land parcel which it intends to develop into a multifamily rental property.

The consolidated assets and liabilities related to the VIEs discussed above were approximately $710.8 million and $321.3 million, respectively, at June 30, 2019 and approximately $713.6 million and $313.9 million, respectively, at December 31, 2018.

Investments in Unconsolidated Entities

The following table and information summarizes the Company’s investments in unconsolidated entities, which are accounted for under the equity method of accounting as the requirements for consolidation are not met, as of June 30, 2019 and December 31, 2018 (amounts in thousands except for ownership percentage):

	June 30, 2019		December 31, 2018		Ownership Percentage
Investments in Unconsolidated Entities:
Wisconsin Place Developer (VIE) (1)	$	41,383	$	42,365	33.3%
Operating Properties (Non-VIE) (2)		—		10,494	20.0%
Other		11,524		5,490	Varies
Investments in Unconsolidated Entities	$	52,907	$	58,349

(1) Represents an unconsolidated interest in an entity that owns the land underlying one of the consolidated joint venture properties noted above and owns and operates a related parking facility.  The joint venture, as a limited partner, does not have substantive kick-out or participating rights in the entity.  As a result, the entity qualifies as a VIE.  The joint venture does not have a controlling financial interest in the VIE and is

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not the VIE’s primary beneficiary.  The joint venture does not have the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance or the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.  As a result, the entity that owns the land and owns and operates the parking facility is unconsolidated and recorded using the equity method of accounting.

(2) Includes two joint ventures under separate agreements with the same partner totaling 945 apartment units as of December 31, 2018.  During the six months ended June 30, 2019, the Company and its joint venture partner sold both properties under separate agreements to unaffiliated parties.  See Note 4 for additional discussion.

7. Restricted Deposits

The following table presents the Company’s restricted deposits as of June 30, 2019 and December 31, 2018 (amounts in thousands):

	June 30, 2019		December 31, 2018
Mortgage escrow deposits:
Real estate taxes and insurance	$	1,181	$	876
Replacement reserves		8,599		8,641
Mortgage principal reserves/sinking funds		7,898		9,754
Other		852		852
Mortgage escrow deposits		18,530		20,123
Restricted cash:
Earnest money on pending acquisitions		1,000		5,000
Restricted deposits on real estate investments		1,493		540
Resident security and utility deposits		36,192		35,659
Other		980		7,549
Restricted cash		39,665		48,748
Restricted deposits	$	58,195	$	68,871

8. Leases

Lessor Accounting

The Company is the lessor for its residential and retail leases (including commercial leases) and these leases will continue to be accounted for as operating leases under the new standard as described in Note 2.  Therefore, the Company did not have significant changes in the accounting for its lease revenues.  

For the six months ended June 30, 2019, approximately 97.1% of the Company’s total lease revenue is generated from residential apartment leases that are generally for twelve months or less in length.  The residential apartment leases may include lease income related to such items as parking, storage and pet rent that the Company treats as a single lease component because the amenities cannot be leased on their own and the timing and pattern of revenue recognition are the same.  The collection of lease payments at lease commencement is probable and therefore the Company subsequently recognizes lease income over the lease term on a straight-line basis.  Residential leases are renewable upon consent of both parties on an annual or monthly basis.

For the six months ended June 30, 2019, approximately 2.9% of the Company’s total lease revenue is generated by retail leases that are generally for terms ranging between 5-10 years.  The retail leases generally consist of ground floor retail spaces and master-leased parking garages that serve as additional amenities for our residents.  The retail leases may include lease income related to such items as parking and storage rent that the Company treats as a single lease component because the amenities cannot be leased on their own and the timing and pattern of revenue recognition are the same.  The collection of lease payments at lease commencement is probable and therefore the Company subsequently recognizes lease income over the lease term on a straight-line basis.  Retail leases are renewable with market-based renewal options.

The Company elected the practical expedient to account for both its lease and non-lease components (specifically common area maintenance charges) as a single lease component under the leases standard.  

The following table presents the lease income types relating to lease payments for residential and retail leases for the six months and quarter ended June 30, 2019 (amounts in thousands):

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	Six Months Ended June 30, 2019						Quarter Ended June 30, 2019
Lease Income Type	Residential Leases		Retail Leases		Total		Residential Leases		Retail Leases			Total
Residential and retail rent	$	1,190,729	$	36,163	$	1,226,892	$	598,209	$	17,693		$	615,902
Parking rent		18,469		159		18,628		9,332		87			9,419
Storage rent		1,856		31		1,887		937		(13	)		924
Pet rent		5,798		—		5,798		2,911		—			2,911
Total lease revenue (1)	$	1,216,852	$	36,353	$	1,253,205	$	611,389	$	17,767		$	629,156

(1) Excludes other rental income of $78.5 million for the six months ended June 30, 2019 and $40.2 million for the quarter ended June 30, 2019, which is accounted for under the revenue recognition standard.

Lessee Accounting

The Company is the lessee under various corporate office and ground leases for which the Company recognized ROU assets and related lease liabilities effective January 1, 2019.  The following table presents the Company’s ROU assets and related lease liabilities as of June 30, 2019 (amounts in thousands):  

	2019
Right-of-use assets:
Corporate office leases (1)	$	15,381
Ground leases		416,372
Right-of-use assets	$	431,753
Lease liabilities:
Corporate office leases (1)	$	16,879
Ground leases		264,741
Lease liabilities	$	281,620

(1) The Company has two corporate office leases that are considered short-term and therefore, there is no balance sheet impact and both leases continue to be expensed on a straight-line basis throughout the year.

As the standard requires the recognition of a liability for the lease obligation, discount rates are used to determine the net present value of the lease payments.  The discount rate for the lease is the rate implicit in the lease or, if that rate cannot be readily determined, the incremental borrowing rate.  As the Company does not know the amount of the lessors’ initial direct costs, it cannot readily determine the rate implicit in the lease and instead must apply the incremental borrowing rate.  The Company has estimated the discount rate ranges of 3.3% to 3.9% for corporate office leases and 4.4% to 5.5% for ground leases.  Since the Company’s credit backs the corporate office lease obligations and the lease terms are ten years or less, the discount rate range was estimated by using the Company’s borrowing rates for actual pricing.  The discount rate range for ground leases takes into account various factors, including the longer life of the ground leases, and was estimated by using the Company’s borrowing rates for actual pricing through 30 years and other long-term market rates.  

Corporate office leases

The Company leases nine corporate offices with remaining lease terms of one to ten years.  The Company’s corporate office leases continue to be accounted for as operating leases under the new standard.  When there is a material lease modification, the Company is required to remeasure the lease liability.

The Company leases its corporate headquarters from an entity affiliated with EQR’s Chairman of the Board of Trustees.  The lease terminates on January 31, 2022.  The amount incurred for such office space for the six months and quarter ended June 30, 2019 was approximately $1.3 million and $0.7 million, respectively.  The Company believes this amount approximates market rates for such rental space.

Ground leases

The Company maintains long-term ground leases for 14 operating properties with lease expiration dates ranging from 2042 through 2113.  The Company owns the building and improvements.  Based on its election of the package of practical expedients, the Company was not required to reassess the classification of existing ground leases and therefore these leases continue to be accounted for as operating leases.  However, in the event we materially modify existing ground leases and/or enter into new ground leases, such leases will likely be classified as finance leases.

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Additional disclosures

The following table illustrates the quantitative disclosures for lessees as of and for the six months and quarter ended June 30, 2019 (amounts in thousands):

	Six Months Ended June 30, 2019		Quarter Ended June 30, 2019
Lease cost:
Operating lease cost:
Corporate office leases	$	1,818	$	900
Ground leases		11,100		5,550
Short-term lease cost:
Corporate office leases		112		56
Ground leases		—		—
Variable lease cost:
Corporate office leases		769		508
Ground leases		1,695		844
Total lease cost	$	15,494	$	7,858

The following table illustrates the quantitative disclosures for lessees as of and for the six months ended June 30, 2019 (amounts in thousands):

	June 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases:
Corporate office leases	$	2,776
Ground leases	$	8,635
ROU assets obtained in exchange for new operating lease liabilities:
Corporate office leases	$	16,687
Ground leases	$	422,018
Weighted-average remaining lease term – operating leases:
Corporate office leases	6.4 years
Ground leases	56.6 years
Weighted-average discount rate – operating leases:
Corporate office leases		3.7	%
Ground leases		5.0	%

The following table summarizes the Company’s undiscounted cash flows for contractual obligations for minimum rent payments/receipts under operating leases for the next five years and thereafter as of June 30, 2019:

(Payments)/Receipts Due by Year (in thousands)
	Remaining 2019			2020			2021			2022			2023			2024			Thereafter			Total
Operating Leases:
Minimum Rent Payments (a)	$	(8,339	)	$	(17,208	)	$	(17,148	)	$	(14,993	)	$	(14,843	)	$	(15,101	)	$	(938,561	)	$	(1,026,193	)
Minimum Rent Receipts (b)	$	31,779		$	61,674		$	57,935		$	54,099		$	46,417		$	39,356		$	139,599		$	430,859

(a) Minimum basic rent due for corporate office leases and base rent due on ground leases where the Company is the lessee.

(b) Minimum basic rent receipts due for various retail space where the Company is the lessor.  Excludes residential leases due to their short-term nature.

The following table provides a reconciliation of lease liabilities from our undiscounted cash flows for minimum rent payments for the six months ended June 30, 2019 (amounts in thousands):

	2019
Total minimum rent payments	$	1,026,193
Less: Lease discount		744,573
Lease liabilities	$	281,620

9. Debt

EQR does not have any indebtedness as all debt is incurred by the Operating Partnership.  EQR guarantees the Operating

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Partnership’s revolving credit facility up to the maximum amount and for the full term of the facility.  Weighted average interest rates noted below for the six months ended June 30, 2019 include the effect of any derivative instruments and amortization of premiums/discounts/OCI (other comprehensive income) on debt and derivatives.  

Mortgage Notes Payable

As of June 30, 2019, the Company had outstanding mortgage debt of approximately $2.6 billion.  

During the six months ended June 30, 2019, the Company:

• Obtained $288.1 million in 3.94% fixed rate mortgage debt held in a Fannie Mae loan pool maturing on March 1, 2029;

• Obtained $7.5 million in variable rate construction mortgage debt maturing on June 25, 2022 (total commitment of $67.6 million);

• Repaid $95.5 million of tax-exempt variable rate mortgage bonds maturing in 2036; and

• Repaid $3.1 million of scheduled principal repayments on various mortgage debt.

The Company recorded $1.5 million of write-offs of unamortized deferred financing costs during the six months ended June 30, 2019 as additional interest expense related to debt extinguishment of mortgages. The Company also recorded $15.1 million of write-offs of net unamortized discounts during the six months ended June 30, 2019 as additional interest expense related to debt extinguishment of mortgages.

As of June 30, 2019, the Company had $345.0 million of secured debt (primarily tax-exempt bonds) subject to third party credit enhancement.

As of June 30, 2019, scheduled maturities for the Company’s outstanding mortgage indebtedness were at various dates through May 28, 2061.  At June 30, 2019, the interest rate range on the Company’s mortgage debt was 0.10% to 5.78%.  During the six months ended June 30, 2019, the weighted average interest rate on the Company’s mortgage debt was 4.01%.

Notes

As of June 30, 2019, the Company had outstanding unsecured notes of approximately $6.5 billion.

During the six months ended June 30, 2019, the Company issued $600.0 million of ten-year 3.00% unsecured notes, receiving net proceeds of approximately $597.5 million before underwriting fees, hedge termination costs and other expenses, at an all-in effective interest rate of approximately 3.85%.

As of June 30, 2019, scheduled maturities for the Company’s outstanding notes were at various dates through August 1, 2047.  At June 30, 2019, the interest rate range on the Company’s notes before the effect of certain fair value hedges was 2.375% to 7.57%.  During the six months ended June 30, 2019, the weighted average interest rate on the Company’s notes was 4.30%.

The Company’s unsecured public debt contains certain financial and operating covenants including, among other things, maintenance of certain financial ratios.  The Company was in compliance with its unsecured public debt covenants for the six months ended June 30, 2019.

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Line of Credit and Commercial Paper

The Company has a $2.0 billion unsecured revolving credit facility maturing January 10, 2022.  The Company has the ability to increase available borrowings by an additional $750.0 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 0.825%), or based on bids received from the lending group, and the Company pays an annual facility fee (currently 0.125%).  Both the spread and the facility fee are dependent on the Company’s senior unsecured credit rating.

The Company has an unsecured commercial paper note program in the United States.  The Company may borrow up to a maximum of $500.0 million under this program subject to market conditions.  The notes will be sold under customary terms in the United States commercial paper note market and will rank pari passu with all of the Company’s other unsecured senior indebtedness.  As of June 30, 2019, there was no commercial paper outstanding. The notes bear interest at various floating rates with a weighted average of 2.73% for the six months ended June 30, 2019.  The weighted average amount outstanding for the six months ended June 30, 2019 was approximately $348.8 million.

As of June 30, 2019, there were no borrowings outstanding under the revolving credit facility and $6.7 million was restricted/dedicated to support letters of credit.  In addition, the Company limits its utilization of the facility in order to maintain liquidity and to support its $500.0 million commercial paper program along with certain other obligations.  As a result, the Company had approximately $1.90 billion available under the facility at June 30, 2019. During the six months ended June 30, 2019, the weighted average interest rate on the revolving credit facility was 3.25%.

Other

In 2017, the Company executed a letter of credit facility with a third party financial institution which is not backed or collateralized by borrowings on the Company’s unsecured revolving credit facility.  As of June 30, 2019, there was $9.0 million in letters of credit outstanding on this facility.

10. 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.

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 commodity prices in the daily operations of the business.

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 applied internally by the Company that use as their inputs 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 commercial paper and line of credit, if applicable) 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 commercial paper and line of credit, if applicable) and quoted market prices for each underlying issuance in the case of the public unsecured notes.

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The fair values of the Company’s financial instruments (other than mortgage notes payable, unsecured notes, commercial paper, line of credit and derivative instruments), including cash and cash equivalents and other financial instruments, approximate their carrying or contract value.  The following table provides a summary of the carrying and fair values for the Company’s mortgage notes payable and unsecured debt (including its commercial paper and line of credit, if applicable) at June 30, 2019 and December 31, 2018, respectively (amounts in thousands):

	June 30, 2019				December 31, 2018
	Carrying Value		Estimated Fair Value (Level 2)		Carrying Value		Estimated Fair Value (Level 2)
Mortgage notes payable, net	$	2,599,013	$	2,602,782	$	2,385,470	$	2,352,502
Unsecured debt, net		6,531,408		6,968,724		6,432,469		6,481,426
Total debt, net	$	9,130,421	$	9,571,506	$	8,817,939	$	8,833,928

The following table summarizes the Company’s consolidated derivative instruments at June 30, 2019 (dollar amounts are in thousands):

	Fair Value Hedges (1)
Current Notional Balance	$	450,000
Lowest Interest Rate		2.375	%
Highest Interest Rate		2.375	%
Maturity Date		2019

(1) Fair Value Hedges – Converts outstanding fixed rate unsecured notes ($450.0 million 2.375% notes due July 1, 2019) to a floating interest rate of 90-Day LIBOR plus 0.61%.

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, 2019 and December 31, 2018, respectively (amounts in thousands):

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	6/30/2019		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Supplemental Executive Retirement Plan	Other Assets	$	145,577	$	145,577	$	—	$	—
Total		$	145,577	$	145,577	$	—	$	—
Liabilities
Derivatives designated as hedging    instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Liabilities	$	24	$	—	$	24	$	—
Supplemental Executive Retirement Plan	Other Liabilities		145,577		145,577		—		—
Total		$	145,601	$	145,577	$	24	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	436,035	$	—	$	436,035	$	—

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				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	12/31/2018		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	$	2,000	$	—	$	2,000	$	—
Supplemental Executive Retirement Plan	Other Assets		134,088		134,088		—		—
Total		$	136,088	$	134,088	$	2,000	$	—
Liabilities
Derivatives designated as hedging    instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Liabilities	$	2,277	$	—	$	2,277	$	—
Forward Starting Swaps	Other Liabilities		9,851		—		9,851		—
Supplemental Executive Retirement Plan	Other Liabilities		134,088		134,088		—		—
Total		$	146,216	$	134,088	$	12,128	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	379,106	$	—	$	379,106	$	—

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, 2019 and 2018, respectively (amounts in thousands):

June 30, 2019 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	$	2,253	Fixed rate debt	Interest expense	$	(2,253	)
Total		$	2,253			$	(2,253	)

June 30, 2018 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	$	(2,151	)	Fixed rate debt	Interest expense	$	2,151
Total		$	(2,151	)			$	2,151

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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, 2019 and 2018, respectively (amounts in thousands):

	Effective Portion
June 30, 2019 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
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	$	(33,765	)	Interest expense	$	(8,902	)
Total	$	(33,765	)		$	(8,902	)

	Effective Portion						Ineffective Portion
June 30, 2018 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	$	11,995	Interest expense	$	(9,307	)	N/A	$	—
Total	$	11,995		$	(9,307	)		$	—

As of June 30, 2019 and December 31, 2018, there were approximately $89.8 million and $65.0 million in deferred losses, net, included in accumulated other comprehensive income (loss), respectively, related to derivative instruments.  Based on the estimated fair values of the net derivative instruments at June 30, 2019, the Company may recognize an estimated $25.7 million of accumulated other comprehensive income (loss) as additional interest expense during the twelve months ending June 30, 2020.

In June 2019, the Company paid approximately $41.8 million to settle ten forward starting swaps in conjunction with the issuance of $600.0 million of ten-year unsecured public notes.  The accrued interest of approximately $0.2 million was recorded as an increase to interest expense. The remaining $41.6 million will be deferred as a component of accumulated other comprehensive income (loss) and will be recognized as an increase to interest expense over the first nine years and eleven months of the notes.

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11. Earnings 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,
	2019			2018			2019			2018
Numerator for net income per share – basic:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Allocation to Noncontrolling Interests – Operating    Partnership		(15,429	)		(12,358	)		(11,510	)		(4,299	)
Net (income) loss attributable to Noncontrolling    Interests – Partially Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Preferred distributions		(1,545	)		(1,545	)		(772	)		(772	)
Numerator for net income per share – basic	$	411,962		$	323,866		$	308,196		$	112,830
Numerator for net income per share – diluted:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Net (income) loss attributable to Noncontrolling    Interests – Partially Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Preferred distributions		(1,545	)		(1,545	)		(772	)		(772	)
Numerator for net income per share – diluted	$	427,391		$	336,224		$	319,706		$	117,129
Denominator for net income per share – basic and diluted:
Denominator for net income per share – basic		369,952			367,865			370,342			367,930
Effect of dilutive securities:
OP Units		12,902			12,864			12,885			12,865
Long-term compensation shares/units		2,790			2,495			2,880			2,628
Denominator for net income per share – diluted		385,644			383,224			386,107			383,423
Net income per share – basic	$	1.11		$	0.88		$	0.83		$	0.31
Net income per share – diluted	$	1.11		$	0.88		$	0.83		$	0.31

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,
	2019			2018			2019			2018
Numerator for net income per Unit – basic and diluted:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Net (income) loss attributable to Noncontrolling Interests – Partially    Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Allocation to Preference Units		(1,545	)		(1,545	)		(772	)		(772	)
Numerator for net income per Unit – basic and diluted	$	427,391		$	336,224		$	319,706		$	117,129
Denominator for net income per Unit – basic and diluted:
Denominator for net income per Unit – basic		382,854			380,729			383,227			380,795
Effect of dilutive securities:
Dilution for Units issuable upon assumed exercise/vesting    of the Company’s long-term compensation shares/units		2,790			2,495			2,880			2,628
Denominator for net income per Unit – diluted		385,644			383,224			386,107			383,423
Net income per Unit – basic	$	1.11		$	0.88		$	0.83		$	0.31
Net income per Unit – diluted	$	1.11		$	0.88		$	0.83		$	0.31

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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 does not believe there is any 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, 2019, the Company has three wholly owned projects totaling 691 apartment units in various stages of development with remaining commitments to fund of approximately $354.7 million and estimated completion dates ranging through September 30, 2021, as well as other completed development projects that are in various stages of lease-up or are stabilized.

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 geographic same store operating segments located in urban and high-density suburban markets represent its reportable segments (the recently acquired Denver properties owned by the Company are currently included in non-same store).  The Company’s operating segments located in its other markets (Phoenix) that are not material have also been included in the tables presented below.  

The Company’s fee and asset management and development 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, 2019 and 2018, 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 and 2) real estate taxes and insurance 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 properties.  Revenues for all leases are reflected on a straight-line basis in accordance with GAAP for the current and comparable periods.

The following table presents a reconciliation of NOI from our rental real estate for the six months and quarters ended June 30, 2019 and 2018, respectively (amounts in thousands):

	Six Months Ended June 30,						Quarter Ended June 30,
	2019			2018			2019			2018
Rental income	$	1,331,676		$	1,272,451		$	669,374		$	639,620
Property and maintenance expense		(223,531	)		(211,946	)		(108,461	)		(103,744	)
Real estate taxes and insurance expense		(182,888	)		(181,396	)		(91,446	)		(89,482	)
Total operating expenses		(406,419	)		(393,342	)		(199,907	)		(193,226	)
Net operating income	$	925,257		$	879,109		$	469,467		$	446,394

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The following tables present NOI for each segment from our rental real estate for the six months and quarters ended June 30, 2019 and 2018, respectively, as well as total assets and capital expenditures at June 30, 2019 (amounts in thousands):

	Six Months Ended June 30, 2019						Six Months Ended June 30, 2018
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Los Angeles	$	232,546	$	68,259	$	164,287	$	222,227	$	63,887	$	158,340
Orange County		51,886		12,201		39,685		49,996		12,231		37,765
San Diego		47,023		12,084		34,939		45,425		11,754		33,671
Subtotal - Southern California		331,455		92,544		238,911		317,648		87,872		229,776
San Francisco		245,103		59,735		185,368		235,767		58,001		177,766
Washington D.C.		223,479		68,742		154,737		218,624		67,463		151,161
New York		225,942		94,472		131,470		220,456		88,496		131,960
Boston		112,127		31,075		81,052		108,348		30,152		78,196
Seattle		101,931		27,512		74,419		99,485		28,084		71,401
Other Markets		1,040		377		663		968		339		629
Total same store		1,241,077		374,457		866,620		1,201,296		360,407		840,889
Non-same store/other (2) (3)
Non-same store		81,933		26,738		55,195		40,438		15,393		25,045
Other (3)		8,666		5,224		3,442		30,717		17,542		13,175
Total non-same store/other		90,599		31,962		58,637		71,155		32,935		38,220
Totals	$	1,331,676	$	406,419	$	925,257	$	1,272,451	$	393,342	$	879,109

(1) For the six months ended June 30, 2019 and 2018, same store primarily includes all properties acquired or completed that were stabilized prior to January 1, 2018, less properties subsequently sold, which represented 73,609 apartment units.

(2) For the six months ended June 30, 2019 and 2018, non-same store primarily includes properties acquired after January 1, 2018, plus any properties in lease-up and not stabilized as of January 1, 2018.

(3) Other includes development, other corporate operations and operations prior to disposition for properties sold.

	Quarter Ended June 30, 2019						Quarter Ended June 30, 2018
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Los Angeles	$	117,147	$	33,776	$	83,371	$	111,230	$	31,845	$	79,385
Orange County		26,058		5,996		20,062		25,193		6,140		19,053
San Diego		23,720		5,958		17,762		22,932		5,790		17,142
Subtotal - Southern California		166,925		45,730		121,195		159,355		43,775		115,580
San Francisco		123,341		29,317		94,024		118,416		28,591		89,825
Washington D.C.		112,694		34,066		78,628		110,096		33,553		76,543
New York		113,579		46,304		67,275		110,691		43,683		67,008
Boston		58,224		15,859		42,365		56,379		15,475		40,904
Seattle		55,288		15,053		40,235		53,854		15,236		38,618
Other Markets		518		192		326		481		175		306
Total same store		630,569		186,521		444,048		609,272		180,488		428,784
Non-same store/other (2) (3)
Non-same store		36,712		11,676		25,036		17,393		6,465		10,928
Other (3)		2,093		1,710		383		12,955		6,273		6,682
Total non-same store/other		38,805		13,386		25,419		30,348		12,738		17,610
Totals	$	669,374	$	199,907	$	469,467	$	639,620	$	193,226	$	446,394

(1) For the quarters ended June 30, 2019 and 2018, same store primarily includes all properties acquired or completed that were stabilized prior to April 1, 2018, less properties subsequently sold, which represented 74,236 apartment units.

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(2) For the quarters ended June 30, 2019 and 2018, non-same store primarily includes properties acquired after April 1, 2018, plus any properties in lease-up and not stabilized as of April 1, 2018.

(3) Other includes development, other corporate operations and operations prior to disposition for properties sold.

	Six Months Ended June 30, 2019
	Total Assets		Capital Expenditures
Same store (1)
Los Angeles	$	3,027,063	$	15,775
Orange County		412,837		4,812
San Diego		398,072		1,749
Subtotal - Southern California		3,837,972		22,336
San Francisco		3,375,932		14,222
Washington D.C.		3,716,255		9,007
New York		3,917,085		10,679
Boston		1,490,866		11,924
Seattle		1,313,159		7,973
Other Markets		12,887		126
Total same store		17,664,156		76,267
Non-same store/other (2) (3)
Non-same store		2,548,854		4,961
Other (3)		777,701		300
Total non-same store/other		3,326,555		5,261
Totals	$	20,990,711	$	81,528

(1) Same store primarily includes all properties acquired or completed that were stabilized prior to January 1, 2018, less properties subsequently sold, which represented 73,609 apartment units.

(2) Non-same store primarily includes properties acquired after January 1, 2018, plus any properties in lease-up and not stabilized as of January 1, 2018.

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

14. Subsequent Events

Subsequent to June 30, 2019, the Company:

• Acquired two properties consisting of 549 apartment units for $192.9 million;

• Sold one property consisting of 298 apartment units for $117.0 million;

• Acquired one land parcel for $3.6 million and sold one land parcel for $1.9 million;

• Repaid $84.5 million of 4.79% mortgage debt prior to the April 1, 2053 maturity date and incurred a prepayment penalty of $3.4 million;

• Repaid $500.0 million of 5.78% mortgage debt held in a Freddie Mac loan pool at par prior to the July 1, 2020 maturity date; and

• Repaid $450.0 million of 2.375% unsecured notes at maturity.  The fair value interest rate swaps matured in conjunction with the maturity of the notes that converted the fixed rate of 2.375% to a floating interest rate of 90-Day LIBOR plus 0.61%.

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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, 2018.

Forward-Looking Statements

Forward-looking statements 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 renovate multifamily operating properties 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 these apartment properties on schedule, resulting in decreases in expected rental revenues and/or lower yields due to lower occupancy and rental rates as well as higher than expected concessions or higher than expected operating expenses.  We may not be able to achieve rents that are consistent with expectations for acquired, developed or renovated 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 renovation.  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, including large portfolios of properties, that could increase our size and result in alterations to our capital structure.  The total number of apartment units under development, costs of labor and construction materials and estimated completion dates are subject to uncertainties arising from changing economic conditions, competition, tariffs and other trade disruptions 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, property values and market rents may be adversely affected by national and local political, economic and market conditions including, without limitation, new construction and excess inventory of multifamily and owned housing/ condominiums, increasing portions of owned housing/condominium 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, 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, governmental regulations including rent control or rent stabilization laws and regulations 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.

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Overview

Equity Residential (“EQR”) is an S&P 500 company focused on the acquisition, development and management of rental apartment properties located in urban and high-density suburban markets, a business that is conducted on its behalf by ERP Operating Limited Partnership (“ERPOP”).  EQR is a Maryland real estate investment trust (“REIT”) formed in March 1993 and ERPOP is an Illinois limited partnership formed in May 1993.  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.  

EQR is the general partner of, and as of June 30, 2019 owned an approximate 96.4% 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, the net proceeds of which it is obligated to contribute to ERPOP, 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 is located in Chicago, Illinois and the Company also operates property management offices in each of its markets.  As of June 30, 2019, the Company had approximately 2,700 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 on our website, www.equityapartments.com.  These reports are made available on 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’s and the Operating Partnership’s business objectives and operating and investing strategies have not changed from the information included in the Company’s and the Operating Partnership’s Annual Report on Form 10-K for the year ended December 31, 2018.

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Results of Operations

2019 Transactions

In conjunction with our business objectives and operating strategy, the Company continued to invest in apartment properties located primarily in our urban and high-density suburban markets and sell apartment properties that we believe will have inferior long-term returns.  The following table provides a rollforward of the transactions that occurred during the six months ended June 30, 2019:

Portfolio Rollforward

($ in thousands)

	Properties			Apartment Units			Purchase Price			Acquisition Cap Rate
12/31/2018		307			79,482
Acquisitions:
Consolidated:
Rental Properties		4			1,058		$	432,150			4.7	%
Rental Properties – Not Stabilized (1)		2			586		$	202,500			4.8	%
Land Parcels		—			—		$	16,232
							Sales Price			Disposition Yield
Dispositions:
Consolidated Rental Properties		(2	)		(561	)	$	(402,750	)		(4.4	)%
Unconsolidated Rental Properties (2)		(2	)		(945	)	$	(394,500	)		(4.7	)%
Configuration Changes		—			4
6/30/2019		309			79,624

(1) The Company acquired two properties in the Denver market in the six months ended June 30, 2019 that are in the final stages of completing lease-up and are expected to stabilize in the second year of ownership at the Acquisition Cap Rate listed above.

(2) The Company owned a 20% interest in both unconsolidated rental properties located in San Jose, CA and South Florida.  Sales price listed is the gross sales price.  The Company received net sales proceeds of approximately $78.3 million and recognized a GAAP gain on sale of approximately $69.5 million.

The consolidated properties acquired were located in the New York, Seattle, Washington D.C., San Francisco and Denver markets.  The consolidated properties disposed of were located in the New York and Boston markets.  See the Definitions section below for the definition of Acquisition Cap Rate, Development Yield, Disposition Yield and Unlevered IRR.  See also Note 4 in the Notes to Consolidated Financial Statements for additional discussion regarding the Company’s real estate transactions.

Same Store Results

Properties that the Company owned and were stabilized (see definition below) for all of both of the six months ended June 30, 2019 and 2018 (the “Six-Month 2019 Same Store Properties”), which represented 73,609 apartment units, and properties that the Company owned and were stabilized for all of both of the quarters ended June 30, 2019 and 2018 (the “Second Quarter 2019 Same Store Properties”), which represented 74,236 apartment units, impacted the Company’s results of operations.  Both the Six-Month 2019 Same Store Properties and the Second Quarter 2019 Same Store Properties are discussed in the following paragraphs.

The Company’s primary financial measure for evaluating each of its apartment communities is net operating income (“NOI”).  NOI represents rental income less direct property operating expenses (including real estate taxes and insurance).  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 properties.

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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, 2019:

	Six Months Ended						Quarter Ended
	June 30, 2019						June 30, 2019
	Properties			Apartment Units			Properties			Apartment Units
Same Store Properties at Beginning of Period		281			71,721			290			74,166
2017 acquisitions		2			437			2			510
2018 acquisitions		—			—			1			117
2019 dispositions		(2	)		(561	)		(2	)		(561	)
Properties added back to same store (1)		2			356			—			—
Lease-up properties stabilized		5			1,652			—			—
Other		—			4			—			4
Same Store Properties at June 30, 2019		288			73,609			291			74,236

	Six Months Ended				Quarter Ended
	June 30, 2019				June 30, 2019
	Properties		Apartment Units		Properties		Apartment Units
Same Store		288		73,609		291		74,236
Non-Same Store:
2019 acquisitions		6		1,644	6			1,644
2018 acquisitions		5		1,461	4			1,344
2017 acquisitions – not stabilized		2		510		—		—
Master-Leased properties (2)		1		162	1			162
Lease-up properties not yet stabilized (3)		6		2,237	6			2,237
Other		1		1	1			1
Total Non-Same Store		21		6,015		18		5,388
Total Properties and Apartment Units		309		79,624		309		79,624

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.

(1) Consists of two properties which were added back to the same store portfolio as discussed further below:

a. Playa Pacifica in Hermosa Beach, California containing 285 apartment units was removed from the same store portfolio in the first quarter of 2015 due to a major renovation in which significant portions of the property were taken offline for extended time periods.  Playa Pacifica was added back to same store for the six months ended June 30, 2019 as the property achieved greater than 90% occupancy for all of the current and comparable periods presented.  

b. Acton Courtyard in Berkeley, California containing 71 apartment units was removed from the same store portfolio in the third quarter of 2016 due to an affordable housing dispute which required significant portions of the property to be vacant for an extended re-leasing period.  Acton Courtyard was added back to same store for the six months ended June 30, 2019 as the property achieved greater than 90% occupancy for all of the current and comparable periods presented.

(2) Consists of one property containing 162 apartment units that is wholly owned by the Company where the entire project is master-leased to a third party corporate housing provider.  

(3) Consists of 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.  Also includes two former master-leased properties that were not stabilized for the comparable periods presented.

The following table provides comparative same store results and statistics for the Six-Month 2019 Same Store Properties:

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June YTD 2019 vs. June YTD 2018

Same Store Results/Statistics for 73,609 Same Store Apartment Units

$ in thousands (except for Average Rental Rate)

	Results									Statistics
Description	Revenues			Expenses			NOI			Average Rental Rate (1)			Physical Occupancy (2)			Turnover (3)
YTD 2019	$	1,241,077		$	374,457		$	866,620		$	2,806			96.4	%		22.9	%
YTD 2018	$	1,201,296		$	360,407		$	840,889		$	2,727			96.1	%		24.3	%
Change	$	39,781		$	14,050		$	25,731		$	79			0.3	%		(1.4	%)
Change		3.3	%		3.9	%		3.1	%		2.9	%

Note: Same store revenues for all leases are reflected on a straight-line basis in accordance with GAAP for the current and comparable periods.

(1) Average Rental Rate – Total residential rental revenues reflected on a straight-line basis in accordance with GAAP divided by the weighted average occupied apartment units for the reporting period presented.

(2) Physical Occupancy – The weighted average occupied apartment units for the reporting period divided by the average of total apartment units available for rent for the reporting period.

(3) Turnover – Total residential move-outs (including inter-property and intra-property transfers) divided by total residential apartment units.

The following tables present reconciliations of operating income per the consolidated statements of operations to NOI, along with rental income, operating expenses and NOI per the consolidated statements of operations allocated between same store and non-same store results (amounts in thousands):

	Six Months Ended June 30,						Quarter Ended June 30,
	2019			2018			2019			2018
Operating income	$	579,229		$	556,685		$	369,260		$	217,603
Adjustments:
Fee and asset management revenue		(335	)		(373	)		(143	)		(188	)
Property management		50,765			46,928			24,369			23,484
General and administrative		29,710			28,780			14,329			12,502
Depreciation		404,723			389,251			200,508			192,942
Net (gain) loss on sales of real estate    properties		(138,835	)		(142,162	)		(138,856	)		51
Total NOI	$	925,257		$	879,109		$	469,467		$	446,394
Rental income:
Same store	$	1,241,077		$	1,201,296		$	630,569		$	609,272
Non-same store/other		90,599			71,155			38,805			30,348
Total rental income		1,331,676			1,272,451			669,374			639,620
Operating expenses:
Same store		374,457			360,407			186,521			180,488
Non-same store/other		31,962			32,935			13,386			12,738
Total operating expenses		406,419			393,342			199,907			193,226
NOI:
Same store		866,620			840,889			444,048			428,784
Non-same store/other		58,637			38,220			25,419			17,610
Total NOI	$	925,257		$	879,109		$	469,467		$	446,394

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The Company anticipates the following same store results for the full year ending December 31, 2019, which assumptions are based on current expectations and are forward-looking:

	Revised 2019 Same Store Assumptions	Previous 2019 Same Store Assumptions
Physical Occupancy	96.4%	96.2%
Revenue change	3.1% to 3.5%	2.2% to 3.2%
Expense change	3.5% to 4.0%	3.5% to 4.5%
NOI change	2.7% to 3.5%	1.5% to 3.0%

The following table provides the same store revenue growth during the six months ended June 30, 2019 as compared to the same period in 2018 and our expected same store revenue growth for 2019 as of June 30, 2019:

Markets/Metro Areas	Actual YTD 2019 Same Store Revenue Growth	Revised Projected Full Year 2019 Same Store Revenue Growth	Previous Projected Full Year 2019 Same Store Revenue Growth
Washington D.C.	2.2%	2.6%	1.4%
New York	2.5%	2.5%	1.8%
Boston	3.5%	3.5%	2.8%
Seattle	2.5%	3.2%	2.0%
San Francisco	4.0%	4.0%	3.4%
Los Angeles	4.6%	3.9%	3.8%
Orange County	3.8%	3.6%	3.1%
San Diego	3.5%	3.4%	3.9%
Overall	3.3%	3.1% to 3.5%	2.2% to 3.2%

Same store revenues, which exceeded our expectations, increased due to continued low turnover, strong occupancy and favorable overall demand.  Improving results in our East Coast markets and Seattle and continued strength in California have led us to revise our same store revenue growth expectations for full year 2019. The Company’s primary focus in 2019 is to continue to retain existing residents and maintain strong occupancy.

Washington D.C. had a better than expected first half of 2019 with strong occupancy and better new lease change than previously anticipated.  The economy, particularly in Northern Virginia, remains strong with gains in the professional and business services sector which are aiding in the absorption of new supply being delivered.  However, we remain cautious on this market’s performance due to continued pressure from elevated new supply.  

The New York market performed better than expected with strong occupancy and the beginning of pricing power.  Strong demand and new supply that is lower than 2018 in our competitive footprint is driving performance.  Due in part to improved new lease pricing, improved occupancy and strong renewals, we have also used very limited concessions.   We will continue to monitor the impact of the recently passed rent control regulations.  Of the approximately 9,600 apartment units located in our New York market, approximately 3,000 apartment units are not located in New York City and not affected by the new regulations.  Of the approximately 6,600 apartment units located in New York City, approximately 3,200 apartment units are “rent stabilized” and therefore impacted by the new regulations.  We estimate that the new regulations will have a negative impact on renewal rates for some of these apartment units.  Additionally, the new regulations will impact our ability to charge certain fees at all of our New York City properties.  We expect an approximate $0.8 million annual reduction in fees, of which approximately $0.4 million will impact 2019. Overall, we believe the new rent control regulations will have a modestly negative impact on our New York market results for 2019.

Boston performed better than expected with strong demand across the market along with a pause in competitive new supply.  Strong occupancy, new lease and renewal pricing increases continue to drive performance.  Most of the 2019 supply is expected to deliver later in the year; therefore, we expect competition to increase towards the end of 2019.  

The Seattle market performed better than expected as the market continues to experience strong demand despite elevated new supply.  Notwithstanding this supply, job growth continues to be very strong, and we experienced improvement in occupancy and better new lease and renewal pricing than anticipated for the quarter.

San Francisco continues to perform better than expected as a result of strong demand driving occupancy and new lease and renewal pricing growth.  The overall market continues to show good absorption of new supply.  The East and South Bay areas are experiencing temporary pricing pressure due to the impact of new supply, but in the long-term, we expect strong demand to drive a rapid absorption of this supply.   Continued economic growth and job expansion is producing wage growth driven by technology company expansions and investments.  

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Although the Los Angeles market continues to experience an increase in supply, overall results were largely in line with expectations.  Residential-only same store revenues increased 4.4% in the six months ended 2019 as compared to the same period in 2018, while our reported revenue increase of 4.6% includes the impact of a negative, one-time non-residential income adjustment in the comparable period.  

In the Orange County market, results have been largely in line with expectations.  New lease and renewal pricing were trending stronger, but some of our properties are experiencing pricing pressure due to competitive new supply in Irvine and Newport Beach.  

In San Diego, we experienced slightly lower than expected renewal pricing driven by supply pressure in the downtown area, but military spending remains strong.  To date, the market has performed slightly below expectations.

As of June 30, 2019, the Company owns four apartment properties in Denver.  While these properties are not currently within our same store portfolio, they are performing in line with our expectations at the time of acquisition.

The following table provides comparative same store operating expenses for the Six-Month 2019 Same Store Properties:

June YTD 2019 vs. June YTD 2018

Same Store Operating Expenses for 73,609 Same Store Apartment Units

$ in thousands

											% of Actual
											YTD 2019
	Actual		Actual		$			%			Operating
	YTD 2019		YTD 2018		Change (5)			Change			Expenses
Real estate taxes	$	158,984	$	153,972	$	5,012			3.3	%		42.4	%
On-site payroll (1)		81,135		78,338		2,797			3.6	%		21.7	%
Utilities (2)		49,328		48,535		793			1.6	%		13.2	%
Repairs and maintenance (3)		47,663		45,494		2,169			4.8	%		12.7	%
Insurance		10,632		9,659		973			10.1	%		2.8	%
Leasing and advertising		4,771		4,864		(93	)		(1.9	)%		1.3	%
Other on-site operating expenses (4)		21,944		19,545		2,399			12.3	%		5.9	%
Same store operating expenses	$	374,457	$	360,407	$	14,050			3.9	%		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 and maintenance costs.

(4) 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.

(5) The changes are due primarily to:

• Real estate taxes – Increase below expectations.  Continue to experience growth across most markets, particularly New York.  Growth rate is lower than original expectations due to lower than anticipated rates in Seattle and modestly favorable appeals activity.  

• On-site payroll – Increase below expectations.  Payroll pressures continue but are somewhat lower than expected.  

• Utilities – Increase in line with expectations.

• Repairs and maintenance – Growth driven primarily by minimum wage pressure on contract labor and higher than anticipated repairs, including weather-related repairs in California in the first quarter of 2019.

• Insurance – Increase due to higher premiums on property insurance renewal due to challenging conditions in the insurance market.

• Other on-site operating expenses – Increase primarily driven by higher ground lease costs due to a contractual revaluation at one property along with higher association fees.

45

Same store expenses increased 3.9% during the six months ended June 30, 2019 as compared to the same period in 2018.  The Company now anticipates that full year 2019 same store expenses will increase 3.5% to 4.0%.

Same store NOI increased 3.1% during the six months ended June 30, 2019 as compared to the six months ended June 30, 2018, which was higher than our expectations.  The Company now anticipates same store NOI growth in the current range of approximately 2.7% to 3.5% for full year 2019 as compared to 2018 as a result of the above same store revenue and expense expectations.

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

Non-Same Store/Other Results

Non-same store/other NOI results for the six months ended June 30, 2019 increased approximately $20.4 million compared to the same period of 2018 and consist primarily of properties acquired in calendar years 2018 and 2019, operations from the Company’s development properties and operations prior to disposition from 2018 and 2019 sold properties.  This difference is due primarily to:

• A positive impact of higher NOI from development and newly stabilized development properties in lease-up of $8.1 million;

• A positive impact of higher NOI from properties primarily acquired in 2018 and 2019 of $21.8 million;

• A positive impact of higher NOI from other non-same store properties (including one current and two former master-leased properties) of $0.2 million; and

• A negative impact of lost NOI from 2018 and 2019 dispositions of $15.1 million.

The Company’s guidance assumes consolidated rental acquisitions of $1.0 billion and consolidated rental dispositions of $1.0 billion and expects that the Acquisition Cap Rate will be equal to the Disposition Yield for the full year ending December 31, 2019.  The Company currently budgets three development starts during the year ending December 31, 2019.  We currently budget spending approximately $208.3 million on development costs during the year ending December 31, 2019, primarily for properties currently under construction.  We assume that this capital will be primarily sourced with excess operating cash flow, future debt offerings and borrowings on our revolving credit facility and/or commercial paper program.  These 2019 assumptions are based on current expectations and are forward-looking.

Comparison of the six months and quarter ended June 30, 2019 to the six months and quarter ended June 30, 2018

The following table presents a reconciliation of diluted earnings per share/unit for the six months and quarter ended June 30, 2019 compared to the same period of 2018:

	Six Months Ended June 30			Quarter Ended June 30
Diluted earnings per share/unit for period ended 2018	$	0.88		$	0.31
Property NOI		0.11			0.06
Corporate overhead (1)		(0.02	)		(0.01	)
Net gain/loss on property/unconsolidated sales		0.17			0.54
Other		(0.03	)		(0.07	)
Diluted earnings per share/unit for period ended 2019	$	1.11		$	0.83

(1) Corporate overhead is comprised of property management and general and administrative expenses.

The increase in consolidated NOI is primarily a result of the Company’s improved NOI from same store and lease-up properties along with NOI from the Company’s recent transaction activity.  The following table presents the changes in the components of consolidated NOI for the six months and quarter ended June 30, 2019 compared to the same period of 2018:

	Six Months Ended June 30, 2019			Quarter Ended June 30, 2019
Consolidated rental income		4.7	%		4.7	%
Consolidated operating expenses (1)		3.3	%		3.5	%
Consolidated NOI		5.2	%		5.2	%

(1) Consolidated operating expenses are comprised of property and maintenance and real estate taxes and insurance.

46

Property management expenses 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 increased approximately $3.8 million or 8.2% and approximately $0.9 million or 3.8% for the six months and quarter ended June 30, 2019, respectively, as compared to the prior year periods.  These increases are primarily attributable to increases in payroll-related costs, legal and professional fees and computer operations costs, partially offset by decreases in education/conference costs.  The Company anticipates that property management expenses will approximate $97.0 million to $99.0 million for the year ending December 31, 2019.

General and administrative expenses, which include corporate operating expenses, increased approximately $0.9 million or 3.2% and approximately $1.8 million or 14.6% for the six months and quarter ended June 30, 2019, respectively, as compared to the prior year periods, primarily due to increases in payroll-related costs, office rent and education/conference costs.  The Company anticipates that general and administrative expenses will approximate $52.0 million to $54.0 million for the year ending December 31, 2019.

Depreciation expense, which includes depreciation on non-real estate assets, increased approximately $15.5 million or 4.0% and approximately $7.6 million or 3.9% for the six months and quarter ended June 30, 2019, respectively, as compared to the prior year periods, primarily as a result of additional depreciation expense on properties acquired in 2018 and 2019 and development properties placed in service during 2018, offset by lower depreciation from properties sold in 2018 and 2019.

Net gain on sales of real estate properties decreased approximately $3.3 million or 2.3% for the six months ended June 30, 2019 as compared to the prior year period as a result of the sale of four consolidated apartment properties in 2018 as compared to two consolidated properties in 2019.  Net gain on sales of real estate properties increased approximately $138.9 million during the quarter ended June 30, 2019 compared to the prior year period as a result of the sale of two consolidated properties in 2019 as compared to no consolidated property sales in the same period in 2018.

Interest and other income decreased approximately $5.4 million or 77.3% for the six months ended June 30, 2019 as compared to the prior year period, primarily due to $5.5 million in lower insurance/litigation settlement proceeds received during 2019 as compared to 2018.  The Company anticipates that interest and other income will approximate $1.8 million for the year ending December 31, 2019, excluding certain non-comparable insurance/litigation settlement proceeds.

Other expenses increased approximately $1.2 million or 16.4% and approximately $1.3 million or 35.8% for the six months and quarter ended June 30, 2019, respectively, as compared to the prior year periods, primarily due to an increase in expenses related to pursuit costs and various consulting costs partially offset by decreases in litigation and environmental settlements (six months only) and advocacy contributions in 2019 as compared to 2018.  

Interest expense, including amortization of deferred financing costs, decreased approximately $6.4 million or 3.0% for the six months ended June 30, 2019 as compared to the prior year period.  The decrease is due primarily to $6.9 million in lower debt extinguishment costs for the six months ended June 30, 2019 as compared to the prior year period.  Interest expense, including amortization of deferred financing costs, increased approximately $16.3 million or 17.0% for the quarter ended June 30, 2019 as compared to the prior year period.  The increase is due primarily to $16.6 million in higher debt extinguishment costs for the quarter ended June 30, 2019 as compared to the prior year period.  The effective interest cost on all indebtedness, excluding debt extinguishment costs/prepayment penalties, for the six months ended June 30, 2019 was 4.34% as compared to 4.40% for the prior year period, and for the quarter ended June 30, 2019 was 4.34% as compared to 4.37% for the prior year period. The Company capitalized interest of approximately $2.7 million and $2.9 million during the six months ended June 30, 2019 and 2018, respectively, and $1.5 million and $1.2 million during the quarters ended June 30, 2019 and 2018, respectively. The Company anticipates that interest expense, excluding debt extinguishment costs/prepayment penalties, will approximate $368.5 million to $376.7 million and capitalized interest will approximate $7.0 million to $8.0 million for the year ending December 31, 2019.

Income from investments in unconsolidated entities increased approximately $70.1 million and $69.8 million during the six months and quarter ended June 30, 2019, respectively, as compared to the prior year periods, as a result of a $69.5 million gain on the sale of two unconsolidated properties in 2019 that did not occur in the same periods in 2018.

Net gain on sales of land parcels decreased approximately $0.8 million or 82.1% and approximately $0.8 million or 82.2% for the six months and quarter ended June 30, 2019, respectively, as compared to the prior year periods, due to the gain on sale of one land parcel with a lower basis in the prior year as compared to the trailing gain adjustments which occurred in the current periods.

The 2019 guidance/projections provided above are based on current projections and are forward-looking.

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Liquidity and Capital Resources

Short-Term Liquidity and Cash Proceeds

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 and commercial paper program.  Under normal operating conditions, the Company considers its cash provided by operating activities to be adequate to meet operating requirements and payments of distributions.

As of January 1, 2019, the Company had approximately $47.4 million of cash and cash equivalents, approximately $68.9 million of restricted deposits and the amount available on its revolving credit facility was $1.40 billion. After taking into effect the various transactions discussed in the following paragraphs and the net cash provided by operating activities, at June 30, 2019, the Company’s cash and cash equivalents balance was approximately $251.3 million, the restricted deposits balance was approximately $58.2 million and the amount available on its revolving credit facility was $1.90 billion.  See Note 9 in the Notes to Consolidated Financial Statements for further discussion of the availability on the Company’s revolving credit facility.

During the six months ended June 30, 2019, the Company generated proceeds from various transactions, which included the following:

• Disposed of two consolidated rental properties and two unconsolidated rental properties, receiving combined net proceeds of approximately $471.7 million;

• Obtained $288.1 million in 3.94% fixed rate mortgage debt held in a Fannie Mae loan pool maturing on March 1, 2029;

• Obtained $7.5 million in variable rate of construction mortgage debt maturing on June 25, 2022 (total commitment of $67.6 million);

• Issued $600.0 million of ten-year 3.00% unsecured notes, receiving net proceeds of approximately $597.5 million before underwriting fees, hedge termination costs and other expenses; and

• Issued approximately 1.1 million Common Shares related to share option exercises and ESPP purchases and received net proceeds of $50.1 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, 2019, the above proceeds along with net cash flow from operations and borrowings from the Company’s revolving line of credit and commercial paper program were primarily utilized to:

• Acquire six consolidated rental properties and one land parcel for approximately $653.1 million in cash;

• Invest $93.2 million primarily in development projects;

• Repay $95.5 million of tax-exempt variable rate mortgage bonds maturing in 2036; and

• Repay $3.1 million of mortgage loans (inclusive of scheduled principal repayments).

Credit Facility and Commercial Paper Program

The Company has a $2.0 billion unsecured revolving credit facility maturing January 10, 2022.  The Company has the ability to increase available borrowings by an additional $750.0 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 0.825%), or based on bids received from the lending group, and the Company pays an annual facility fee (currently 0.125%).  Both the spread and the facility fee are dependent on the Company’s senior unsecured credit rating.

The Company has an unsecured commercial paper note program in the United States.  The Company may borrow up to a maximum of $500.0 million under this program subject to market conditions.  The notes will be sold under customary terms in the United States commercial paper note market and will rank pari passu with all of the Company’s other unsecured senior indebtedness.  As of July 26, 2019, there was a balance of $490.0 million in principal outstanding on the commercial paper program.

As of July 26, 2019, $465.0 million was outstanding under the revolving credit facility and $6.7 million was restricted/dedicated to support letters of credit.  In addition, the Company limits its utilization of the facility in order to maintain liquidity to support its $500.0 million commercial paper program along with certain other obligations.  As a result, the Company had approximately $941.3 million available under the facility at July 26, 2019.  This facility may, among other potential uses, be used to fund property acquisitions, costs for certain properties under development and short-term liquidity requirements.

48

Dividend Policy

The Company determines its dividends/distributions based on actual and projected financial conditions, the Company’s actual and projected liquidity and operating results, the Company’s projected cash needs for capital expenditures and other investment activities and such other factors as the Company’s Board of Trustees deems relevant.  The Company declared a dividend/distribution for the first and second quarters of 2019 of $0.5675 per share/unit in each quarter, an annualized increase of 5.1% over the amount paid in 2018.  This increase is supported by the Company’s strong growth in property operations since the recent economic downturn and a significant reduction in its development activity resulting in a material increase in available cash flow.  All future dividends/distributions remain subject to the discretion of the Company’s Board of Trustees.  The Company believes that its expected 2019 operating cash flow will be sufficient to cover capital expenditures and regular dividends/distributions.

Total dividends/distributions paid in July 2019 amounted to $218.7 million (excluding distributions on Partially Owned Properties), which consisted of certain distributions declared during the quarter ended June 30, 2019.

Long-Term Financing and Capital Needs

The Company expects to meet its long-term liquidity requirements, such as lump sum unsecured note and mortgage debt maturities, property acquisitions and financing of 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 unsecured capital is 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 $27.0 billion in investment in real estate on the Company’s balance sheet at June 30, 2019, $22.4 billion or 83.0% 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.

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

The Company’s total debt summary and debt maturity schedules as of June 30, 2019 are as follows:

Debt Summary as of June 30, 2019

($ in thousands)

									Weighted
						Weighted			Average
						Average			Maturities
	Amounts (1)		% of Total			Rates (1)			(years)
Secured	$	2,599,013		28.5	%		4.01	%		6.4
Unsecured		6,531,408		71.5	%		4.20	%		9.7
Total	$	9,130,421		100.0	%		4.15	%		8.7
Fixed Rate Debt:
Secured – Conventional	$	2,170,114		23.8	%		4.44	%		4.6
Unsecured – Public		6,081,432		66.6	%		4.38	%		10.4
Fixed Rate Debt		8,251,546		90.4	%		4.40	%		8.9
Floating Rate Debt:
Secured – Conventional		13,057		0.1	%		2.42	%		5.3
Secured – Tax Exempt		415,842		4.6	%		2.09	%		15.5
Unsecured – Public (2)		449,976		4.9	%		3.34	%		—
Unsecured – Revolving Credit Facility		—		—			3.25	%		2.5
Unsecured – Commercial Paper Program		—		—			2.73	%		—
Floating Rate Debt		878,875		9.6	%		2.74	%		7.6
Total	$	9,130,421		100.0	%		4.15	%		8.7

(1) Includes the effect of any derivative instruments and amortization of premiums/discounts/OCI on debt and derivatives.  Weighted average rates are for the six months ended June 30, 2019.

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

49

Debt Maturity Schedule as of June 30, 2019

($ in thousands)

Year	Fixed Rate (1)				Floating Rate (1)				Total			% of Total			Weighted Average Coupons on Fixed Rate Debt (1)			Weighted Average Coupons on Total Debt (1)
2019	$	3,821			$	470,276		(2)	$	474,097			5.1	%		3.61	%		3.14	%
2020		1,128,592		(3)		700				1,129,292			12.3	%		5.20	%		5.20	%
2021		927,506				600				928,106			10.1	%		4.64	%		4.64	%
2022		265,341				8,300				273,641			3.0	%		3.26	%		3.26	%
2023		1,326,800				4,300				1,331,100			14.4	%		3.74	%		3.73	%
2024		1,272				6,900				8,172			0.1	%		4.79	%		2.40	%
2025		451,334				9,000				460,334			5.0	%		3.38	%		3.35	%
2026		593,424				10,000				603,424			6.5	%		3.59	%		3.56	%
2027		401,468				10,700				412,168			4.5	%		3.26	%		3.22	%
2028		901,540				43,380				944,920			10.3	%		3.79	%		3.70	%
2029+		2,311,549				335,220				2,646,769			28.7	%		3.98	%		3.63	%
Subtotal		8,312,647				899,376				9,212,023			100.0	%		4.01	%		3.87	%
Deferred Financing Costs and    Unamortized (Discount)		(61,101	)			(20,501	)			(81,602	)	N/A			N/A			N/A
Total	$	8,251,546			$	878,875			$	9,130,421			100.0	%		4.01	%		3.87	%

(1) Includes the effect of any derivative instruments.  Weighted average coupons are as of June 30, 2019.

(2) Includes $450.0 million in 2.375% notes that were repaid at maturity on July 1, 2019.

(3) Includes a $500.0 million 5.78% mortgage loan with a maturity date of July 1, 2020 that was repaid at par on July 1, 2019.

See Note 9 in the Notes to Consolidated Financial Statements for additional discussion of debt at June 30, 2019.

ERPOP’s long-term senior debt ratings and short-term commercial paper ratings as well as EQR’s long-term preferred equity ratings, which all have a stable outlook, as of July 26, 2019 are as follows:

	Standard & Poor’s	Moody’s	Fitch
ERPOP’s long-term senior debt rating	A-	A3	A
ERPOP’s short-term commercial paper rating	A-2	P-2	F-1
EQR’s long-term preferred equity rating	BBB	Baa1	BBB+

See Note 14 in the Notes to Consolidated Financial Statements for discussion of the events, if any, which occurred subsequent to June 30, 2019.

Capitalization of Fixed Assets and Improvements to Real Estate

The Company’s and the Operating Partnership’s capital expenditures policy has not changed from the information included in the Company’s and the Operating Partnership’s Annual Report on Form 10-K for the year ended December 31, 2018.

For the six months ended June 30, 2019, our actual capital expenditures to real estate included 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, 2019

	Same Store Properties (4)		Non-Same Store Properties/Other (5)		Total		Same Store Avg. Per Apartment Unit
Total Apartment Units		73,609		6,015		79,624
Building Improvements (1)	$	42,506	$	3,110	$	45,616	$	578
Renovation Expenditures (2)		17,536		1,589		19,125		238
Replacements (3)		16,225		562		16,787		220
Total Capital Expenditures	$	76,267	$	5,261	$	81,528	$	1,036

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(1) Building Improvements – Includes roof replacement, paving, building mechanical equipment systems, exterior siding and painting, major landscaping, furniture, fixtures and equipment for amenities and common areas, vehicles and office and maintenance equipment.  

(2) Renovation Expenditures – Apartment unit renovation costs (primarily kitchens and baths) designed to reposition these units for higher rental levels in their respective markets.  Amounts for 1,175 same store apartment units approximated $14,950 per apartment unit renovated.  

(3) Replacements – Includes appliances, mechanical equipment, fixtures and flooring (including hardwood and carpeting).

(4) Same Store Properties – Primarily includes all properties acquired or completed that are stabilized prior to January 1, 2018, less properties subsequently sold.  

(5) Non-Same Store Properties/Other – Primarily includes all properties acquired during 2018 and 2019, plus any properties in lease-up and not stabilized as of January 1, 2018.  Also includes capital expenditures for properties sold.

The Company estimates that during 2019 it will spend approximately $2,600 per same store apartment unit or $190.0 million of total capital expenditures to real estate for same store properties.  During 2019, the Company expects to spend approximately $46.4 million for apartment unit renovation expenditures on approximately 2,900 same store apartment units at an average cost of approximately $16,000 per apartment unit renovated.  The anticipated total capital expenditures to real estate for same store properties represent approximately the same percentage of same store revenues and a slightly higher cost per unit and absolute dollar amount as compared to 2018.  The Company plans to continue the capital expenditures for investment in customer-facing building improvements (leasing offices, fitness centers, common areas, etc.) to enhance the quality of our properties and to protect our competitive position given the new luxury supply opening in many of our markets.  We also expect to continue to commit capital to sustainability projects and renovation expenditures during 2019.  The above assumptions are based on current expectations and are forward-looking.

Capital expenditures to real estate 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 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 10 in the Notes to Consolidated Financial Statements for additional discussion of derivative instruments at June 30, 2019.

Definitions

The definition of certain terms described above or below are as follows:

• Acquisition Cap Rate – NOI that the Company anticipates receiving in the next 12 months (or the year two or three stabilized NOI for properties that are in lease-up at acquisition) less an estimate of property management costs/management fees allocated to the project (generally ranging from 2.0% to 4.0% of revenues depending on the size and income streams of the asset) and less an estimate for in-the-unit replacement capital expenditures (generally ranging from $100-$450 per apartment unit depending on the age and condition of the asset) divided by the gross purchase price of the asset.  The weighted average Acquisition Cap Rate for acquired properties is weighted based on the projected NOI streams and the relative purchase price for each respective property.

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• Development Yield – NOI that the Company anticipates receiving in the next 12 months following stabilization less an estimate of property management costs/management fees allocated to the project (generally ranging from 2.0% to 4.0% of revenues depending on the size and income streams of the asset) and less an estimate for in-the-unit replacement capital expenditures (generally ranging from $50-$150 per apartment unit depending on the type of asset) divided by the Total Budgeted Capital Cost of the asset. The weighted average Development Yield for development properties is weighted based on the projected NOI streams and the relative Total Budgeted Capital Cost for each respective property.

• Disposition Yield – NOI that the Company anticipates giving up in the next 12 months less an estimate of property management costs/management fees allocated to the project (generally ranging from 2.0% to 4.0% of revenues depending on the size and income streams of the asset) and less an estimate for in-the-unit replacement capital expenditures (generally ranging from $100-$450 per apartment unit depending on the age and condition of the asset) divided by the gross sales price of the asset.  The weighted average Disposition Yield for sold properties is weighted based on the projected NOI streams and the relative sales price for each respective property.

• Unlevered Internal Rate of Return (“IRR”) – The Unlevered IRR on sold properties is the compound annual rate of return calculated by the Company based on the timing and amount of: (i) the gross purchase price of the property plus any direct acquisition costs incurred by the Company; (ii) total revenues earned during the Company’s ownership period; (iii) total direct property operating expenses (including real estate taxes and insurance) incurred during the Company’s ownership period; (iv) capital expenditures incurred during the Company’s ownership period; and (v) the gross sales price of the property net of selling costs.  

Off-Balance Sheet Arrangements and Contractual Obligations

The Company has various unconsolidated interests in certain joint ventures.  The Company does not believe that these unconsolidated investments have a materially different impact on its liquidity, cash flows, capital resources, credit or market risk than its consolidated operating and/or other activities.  See Note 6 in the Notes to Consolidated Financial Statements for additional discussion regarding the Company’s investments in partially owned entities.  See also Note 12 in the Notes to Consolidated Financial Statements for discussion regarding the Company’s development projects.

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 and the Operating Partnership’s Annual Report on Form 10-K for the year ended December 31, 2018.  See the updated contractual obligations for minimum rent payments schedule included in Note 8 in the Notes to Consolidated Financial Statements and the updated debt maturity schedule included in Liquidity and Capital Resources for further discussion.

Critical Accounting Policies and Estimates

The Company’s and the Operating Partnership’s critical accounting policies and estimates have not changed from the information included in the Company’s and the Operating Partnership’s Annual Report on Form 10-K for the year ended December 31, 2018.

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Funds From Operations and Normalized Funds From Operations

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, 2019 and 2018:

Funds From Operations and Normalized Funds From Operations

(Amounts in thousands)

	Six Months Ended June 30,						Quarter Ended June 30,
	2019			2018			2019			2018
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Net (income) loss attributable to Noncontrolling Interests – Partially    Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Preferred/preference distributions		(1,545	)		(1,545	)		(772	)		(772	)
Net income available to Common Shares and Units / Units		427,391			336,224			319,706			117,129
Adjustments:
Depreciation		404,723			389,251			200,508			192,942
Depreciation – Non-real estate additions		(2,303	)		(2,260	)		(1,121	)		(1,115	)
Depreciation – Partially Owned Properties		(1,802	)		(1,933	)		(899	)		(901	)
Depreciation – Unconsolidated Properties		1,772			2,297			850			1,149
Net (gain) loss on sales of unconsolidated entities - operating    assets		(69,522	)		—			(69,522	)		—
Net (gain) loss on sales of real estate properties		(138,835	)		(142,162	)		(138,856	)		51
Noncontrolling Interests share of gain (loss) on sales    of real estate properties		—			(284	)		—			(284	)
FFO available to Common Shares and Units / Units (1) (3) (4)		621,424			581,133			310,666			308,971
Adjustments:
Impairment – non-operating assets		—			—			—			—
Write-off of pursuit costs		2,987			2,066			1,539			1,135
Debt extinguishment and preferred share redemption (gains)    losses		16,647			23,539			16,647			—
Non-operating asset (gains) losses		252			(478	)		23			(691	)
Other miscellaneous items		4,418			(1,470	)		2,843			1,769
Normalized FFO available to Common Shares and Units / Units (2) (3) (4)	$	645,728		$	604,790		$	331,718		$	311,184
FFO (1) (3)	$	622,969		$	582,678		$	311,438		$	309,743
Preferred/preference distributions		(1,545	)		(1,545	)		(772	)		(772	)
FFO available to Common Shares and Units / Units (1) (3) (4)	$	621,424		$	581,133		$	310,666		$	308,971
Normalized FFO (2) (3)	$	647,273		$	606,335		$	332,490		$	311,956
Preferred/preference distributions		(1,545	)		(1,545	)		(772	)		(772	)
Normalized FFO available to Common Shares and Units / Units (2) (3) (4)	$	645,728		$	604,790		$	331,718		$	311,184

(1) The National Association of Real Estate Investment Trusts (“Nareit”) defines funds from operations (“FFO”) (December 2018 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 real estate and land when connected to the main business of a REIT, impairment write-downs of investments in entities when the impairment is directly attributable to decreases in the value of depreciable real estate held by the entity and depreciation and amortization related to real estate.  Adjustments for partially owned consolidated and unconsolidated partnerships and joint ventures are calculated to reflect FFO on the same basis.  

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

• the impact of any expenses relating to non-operating asset impairment;

• pursuit cost write-offs;

• gains and losses from early debt extinguishment and preferred share redemptions;

• gains and losses from non-operating assets; and

• other miscellaneous items.

53

(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 from sales and impairment write-downs of depreciable real estate and excluding depreciation related to real estate (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 GAAP.  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, 2018.  See Note 10 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, 2019, 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 above that occurred during the second quarter of 2019 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, 2019, 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.

54

(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 above that occurred during the second quarter of 2019 that have materially affected, or are reasonably likely to materially affect, the Operating Partnership’s internal control over financial reporting.

PART II.  OTHER INFORMATION

Item 1.  Legal Proceedings

As of June 30, 2019, the Company does not believe there is any 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.

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, 2018.

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

(a) Unregistered Common Shares Issued in the Quarter Ended June 30, 2019 - Equity Residential

During the quarter ended June 30, 2019, EQR issued 3,528 Common Shares in exchange for 3,528 OP Units held by various limited partners of ERPOP.  OP Units are generally exchangeable into Common Shares on a one-for-one basis or, at the option of ERPOP, 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(a)(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.

55

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 3.000% Note due July 1, 2029.	Included as Exhibit 4.1 to Equity Residential's and ERP Operating Limited Partnership's Form 8-K dated June 17, 2019, filed on June 20, 2019.
10.1	Equity Residential 2019 Share Incentive Plan.	Included as Exhibit 99.1 to Equity Residential's and ERP Operating Limited Partnership's Form 8-K dated June 27, 2019, filed on July 1, 2019.
10.2	Distribution Agreement, dated June  6, 2019, among the Company, the Operating Partnership, JPMorgan Chase Bank, National Association, London Branch, J.P. Morgan Securities LLC, Barclays Bank PLC, Barclays Capital Inc., Bank of America, N.A., BofA Securities, Inc., The Bank of New York Mellon, BNY Mellon Capital Markets, LLC, Morgan Stanley & Co. LLC, MUFG Securities EMEA plc, MUFG Securities Americas Inc., The Bank of Nova Scotia, Scotia Capital (USA) Inc., UBS AG, London Branch and UBS Securities LLC.	Included as Exhibit 1.1 to Equity Residential's and ERP Operating Limited Partnership's Form 8-K dated and filed on June 6, 2019.
10.3	Form of Master Forward Sale Confirmation.	Included as Exhibit 1.2 to Equity Residential's and ERP Operating Limited Partnership's Form 8-K dated and filed on June 6, 2019.
31.1	Equity Residential – Certification of Mark J. Parrell, Chief  Executive Officer.	Attached herein.
31.2	Equity Residential – Certification of Robert A. Garechana, Chief Financial Officer.	Attached herein.
31.3	ERP Operating Limited Partnership – Certification of Mark J. Parrell, Chief Executive Officer of Registrant’s General Partner.	Attached herein.
31.4	ERP Operating Limited Partnership – Certification of Robert A. Garechana, 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 Mark J. Parrell, 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 Robert A. Garechana, 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 Mark J. Parrell, 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 Robert A. Garechana, Chief Financial Officer of Registrant’s General Partner.	Attached herein.

56

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, 2019, formatted in XBRL: (i) consolidated balance sheets, (ii) consolidated statements of operations and comprehensive income, (iii) consolidated statements of cash flows, (iv) consolidated statements of changes in equity (Equity Residential), (v) consolidated statements of changes in capital (ERP Operating Limited Partnership) and (vi) notes to consolidated financial statements.  XBRL Instance Document – the XBRL Instance Document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. Attached herein.

57

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 2, 2019	By:	/s/ Robert A. Garechana
			Robert A. Garechana
			Executive Vice President and Chief Financial Officer
			(Principal Financial Officer)
Date:	August 2, 2019	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 2, 2019	By:	/s/ Robert A. Garechana
			Robert A. Garechana
			Executive Vice President and Chief Financial Officer
			(Principal Financial Officer)
Date:	August 2, 2019	By:	/s/ Ian S. Kaufman
			Ian S. Kaufman
			Senior Vice President and Chief Accounting Officer
			(Principal Accounting Officer)

EX-31.1

Exhibit 31.1

Equity Residential

CERTIFICATIONS

I, Mark J. Parrell, certify that:

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

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessarytomakethestatementsmade,inlightofthecircumstancesunderwhichsuchstatementsweremade,notmisleading with respect to the period covered by thisreport;

3. Basedonmyknowledge,thefinancialstatements,andotherfinancialinformationincludedinthisreport,fairlypresentinall material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in thisreport;

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 andhave:

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 equivalentfunctions):

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 2, 2019

/s/ Mark J. Parrell

    Mark J. Parrell

    Chief Executive Officer

EX-31.2

Exhibit 31.2

Equity Residential

CERTIFICATIONS

I, Robert A. Garechana, 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 necessarytomakethestatementsmade,inlightofthecircumstancesunderwhichsuchstatementsweremade,notmisleading with respect to the period covered by thisreport;

3. Basedonmyknowledge,thefinancialstatements,andotherfinancialinformationincludedinthisreport,fairlypresentinall material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in thisreport;

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 2, 2019

/s/ Robert A. Garechana

    Robert A. Garechana

    Chief Financial Officer

EX-31.3

Exhibit 31.3

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. Basedonmyknowledge,thefinancialstatements,andotherfinancialinformationincludedinthisreport,fairlypresentinall material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in thisreport;

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 2, 2019

/s/ Mark J. Parrell

    Mark J. Parrell

    Chief Executive Officer of Registrant’s General Partner

EX-31.4

Exhibit 31.4

ERP Operating Limited Partnership

CERTIFICATIONS

I, Robert A. Garechana, certify that:

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

2. Basedonmyknowledge,thisreportdoesnotcontainanyuntruestatementofamaterialfactoromittostateamaterial factnecessarytomakethestatementsmade,inlightofthecircumstancesunderwhichsuchstatementsweremade,not misleading with respect to the period covered by thisreport;

3. Basedonmyknowledge,thefinancialstatements,andotherfinancialinformationincludedinthisreport,fairlypresentinall material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in thisreport;

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 2, 2019

/s/ Robert A. Garechana

    Robert A. Garechana

    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

SECTION906OFTHESARBANES-OXLEYACTOF2002

InconnectionwiththeQuarterlyReportofEquityResidential(the“Company”)onForm10-QfortheperiodendingJune 30, 2019 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Mark J. Parrell, Chief ExecutiveOfficeroftheCompany,certify,pursuantto18U.S.C.§1350,asadoptedpursuantto§906oftheSarbanes-OxleyAct of 2002, that, to the best of myknowledge:

(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 Executive Officer

August 2, 2019

EX-32.2

Exhibit 32.2

Equity Residential

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION906OFTHESARBANES-OXLEYACTOF2002

InconnectionwiththeQuarterlyReportofEquityResidential(the“Company”)onForm10-QfortheperiodendingJune 30, 2019 as filed with the Securities and Exchange Commission on the date hereof (the “Report”),I, Robert A. Garechana,ChiefFinancial OfficeroftheCompany,certify,pursuantto18U.S.C.§1350,asadoptedpursuantto§906oftheSarbanes-OxleyActof2002, that, to the best of myknowledge:

(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/ Robert A. Garechana

Robert A. Garechana

Chief Financial Officer

August 2, 2019

EX-32.3

Exhibit 32.3

ERP Operating Limited Partnership

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION906OFTHESARBANES-OXLEYACTOF2002

In connection with the Quarterly Report of ERP Operating Limited Partnership (the “Operating Partnership”) on Form 10-QfortheperiodendingJune 30,2019asfiledwiththeSecuritiesandExchangeCommissiononthedatehereof(the“Report”), I,MarkJ.Parrell,ChiefExecutiveOfficerofEquityResidential,generalpartneroftheOperatingPartnership,certify,pursuant to18U.S.C.§1350,asadoptedpursuantto§906oftheSarbanes-OxleyActof2002,that,tothebestofmyknowledge:

(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 OperatingPartnership.

/s/ Mark J. Parrell

Mark J. Parrell

Chief Executive Officer

of Registrant’s General Partner  

August 2, 2019

EX-32.4

Exhibit 32.4

ERP Operating Limited Partnership

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION906OFTHESARBANES-OXLEYACTOF2002

In connection with the Quarterly Report of ERP Operating Limited Partnership (the “Operating Partnership”) on Form 10-QfortheperiodendingJune 30,2019asfiledwiththeSecuritiesandExchangeCommissiononthedatehereof(the“Report”), I,Robert A. Garechana, ChiefFinancialOfficerofEquityResidential,generalpartneroftheOperatingPartnership,certify,pursuantto 18U.S.C.§1350,asadoptedpursuantto§906oftheSarbanes-OxleyActof2002,that,tothebestofmyknowledge:

(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 OperatingPartnership.

/s/ Robert A. Garechana

Robert A. Garechana

Chief Financial Officer

of Registrant’s General Partner

August 2, 2019

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Jul. 26, 2019
Document And Entity Information [Line Items]
Entity Registrant Name	EQUITY RESIDENTIAL
Entity Central Index Key	0000906107
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Trading Symbol	EQR
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		370,852,718
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	1-12252
Entity Tax Identification Number	133675988
Entity Address, Address Line One	Two North Riverside Plaza
Entity Address, City or Town	Chicago
Entity Address, State or Province	Illinois
Entity Address, Postal Zip Code	60606
City Area Code	312
Local Phone Number	474-1300
ERPOP [Member]
Document And Entity Information [Line Items]
Entity Registrant Name	ERP OPERATING LIMITED PARTNERSHIP
Entity Central Index Key	0000931182
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	0-24920
Entity Tax Identification Number	363894853
Entity Address, Address Line One	Two North Riverside Plaza
Entity Address, City or Town	Chicago
Entity Address, State or Province	Illinois
Entity Address, Postal Zip Code	60606
City Area Code	312
Local Phone Number	474-1300

XML

CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
ASSETS
Land	$ 5,889,308	$ 5,875,803
Depreciable property	20,824,053	20,435,901
Projects under development	171,869	109,409
Land held for development	110,545	89,909
Investment in real estate	26,995,775	26,511,022
Accumulated depreciation	(7,026,622)	(6,696,281)
Investment in real estate, net	19,969,153	19,814,741
Investments in unconsolidated entities	52,907	58,349
Cash and cash equivalents	251,273	47,442
Restricted deposits	58,195	68,871
Right-of-use assets	431,753	0
Other assets	227,430	404,806
Total assets	20,990,711	20,394,209
Liabilities:
Mortgage notes payable, net	2,599,013	2,385,470
Notes, net	6,531,408	5,933,286
Line of credit and commercial paper	0	499,183
Accounts payable and accrued expenses	108,574	102,471
Accrued interest payable	64,158	62,622
Lease liabilities	281,620	0
Other liabilities	302,628	358,563
Security deposits	69,027	67,258
Distributions payable	218,697	206,601
Total liabilities	10,175,125	9,615,454
Commitments and contingencies
Redeemable Noncontrolling Interests – Operating Partnership	436,035	379,106
Shareholders’ equity:
Preferred Shares of beneficial interest, $0.01 par value; 100,000,000 shares authorized; 745,600 shares issued and outstanding as of June 30, 2019 and December 31, 2018	37,280	37,280
Common Shares of beneficial interest, $0.01 par value; 1,000,000,000 shares authorized; 370,838,810 shares issued and outstanding as of June 30, 2019 and 369,405,161 shares issued and outstanding as of December 31, 2018	3,708	3,694
Paid in capital	8,949,581	8,935,453
Retained earnings	1,252,809	1,261,763
Accumulated other comprehensive income (loss)	(89,849)	(64,986)
Total shareholders’ equity	10,153,529	10,173,204
Noncontrolling Interests:
Operating Partnership	227,320	228,738
Partially Owned Properties	(1,298)	(2,293)
Total Noncontrolling Interests	226,022	226,445
Total equity	10,379,551	10,399,649
Total liabilities and equity/capital	$ 20,990,711	$ 20,394,209

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (Unaudited) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	100,000,000	100,000,000
Preferred Stock, Shares Issued	745,600	745,600
Preferred Stock, Shares Outstanding	745,600	745,600
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	1,000,000,000	1,000,000,000
Common Stock, Shares, Issued	370,838,810	369,405,161
Common Stock, Shares, Outstanding	370,838,810	369,405,161

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CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
REVENUES
Rental income	$ 669,374	$ 639,620	$ 1,331,676	$ 1,272,451
Fee and asset management	$ 143	$ 188	$ 335	$ 373
Type of Revenue [Extensible List]	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember
Total revenues	$ 669,517	$ 639,808	$ 1,332,011	$ 1,272,824
EXPENSES
Property and maintenance	108,461	103,744	223,531	211,946
Real estate taxes and insurance	91,446	89,482	182,888	181,396
Property management	24,369	23,484	50,765	46,928
General and administrative	14,329	12,502	29,710	28,780
Depreciation	200,508	192,942	404,723	389,251
Total expenses	439,113	422,154	891,617	858,301
Net gain (loss) on sales of real estate properties	138,856	(51)	138,835	142,162
Operating income	369,260	217,603	579,229	556,685
Interest and other income	1,009	1,116	1,590	6,996
Other expenses	(5,117)	(3,769)	(8,392)	(7,210)
Interest:
Expense incurred, net	(108,902)	(94,131)	(203,840)	(210,235)
Amortization of deferred financing costs	(3,647)	(2,099)	(5,783)	(5,778)
Income before income and other taxes, income (loss) from investments in unconsolidated entities and net gain (loss) on sales of land parcels	252,603	118,720	362,804	340,458
Income and other tax (expense) benefit	(246)	(274)	(484)	(487)
Income (loss) from investments in unconsolidated entities	68,765	(1,031)	68,058	(2,008)
Net gain (loss) on sales of land parcels	177	995	178	995
Net income	321,299	118,410	430,556	338,958
Net (income) loss attributable to Noncontrolling Interests:
Operating Partnership	(11,510)	(4,299)	(15,429)	(12,358)
Partially Owned Properties	(821)	(509)	(1,620)	(1,189)
Net income attributable to controlling interests	308,968	113,602	413,507	325,411
Preferred distributions	(772)	(772)	(1,545)	(1,545)
Net income available to Common Shares	$ 308,196	$ 112,830	$ 411,962	$ 323,866
Earnings per share – basic:
Net income available to Common Shares	$ 0.83	$ 0.31	$ 1.11	$ 0.88
Weighted average Common Shares outstanding	370,342	367,930	369,952	367,865
Earnings per share – diluted:
Net income available to Common Shares	$ 0.83	$ 0.31	$ 1.11	$ 0.88
Weighted average Common Shares outstanding	386,107	383,423	385,644	383,224

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Comprehensive income:
Net income	$ 321,299	$ 118,410	$ 430,556	$ 338,958
Other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	(19,345)	5,908	(33,765)	11,995
Losses reclassified into earnings from other comprehensive income	4,509	4,516	8,902	9,307
Other comprehensive income (loss)	(14,836)	10,424	(24,863)	21,302
Comprehensive income	306,463	128,834	405,693	360,260
Comprehensive (income) attributable to Noncontrolling Interests	(11,797)	(5,190)	(16,150)	(14,329)
Comprehensive income attributable to controlling interests	$ 294,666	$ 123,644	$ 389,543	$ 345,931

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 430,556	$ 338,958
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	404,723	389,251
Amortization of deferred financing costs	5,783	5,778
Amortization of above/below market lease intangibles	(35)	2,196
Amortization of discounts and premiums on debt	17,795	3,263
Amortization of deferred settlements on derivative instruments	8,896	9,302
Amortization of right-of-use assets	6,952
Write-off of pursuit costs	2,987	2,066
(Income) loss from investments in unconsolidated entities	(68,058)	2,008
Distributions from unconsolidated entities – return on capital	2,387	1,188
Net (gain) loss on sales of real estate properties	(138,835)	(142,162)
Net (gain) loss on sales of land parcels	(178)	(995)
Net (gain) loss on debt extinguishment		22,110
Compensation paid with Company Common Shares	16,782	17,032
Changes in assets and liabilities:
(Increase) decrease in other assets	1,610	417
Increase (decrease) in accounts payable and accrued expenses	22,435	25,396
Increase (decrease) in accrued interest payable	1,536	5,306
Increase (decrease) in other liabilities	(25,161)	2,549
Increase (decrease) in security deposits	1,769	1,791
Increase (decrease) in lease liabilities	(1,171)
Net cash provided by operating activities	690,773	685,454
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in real estate – acquisitions	(653,132)	(200,546)
Investment in real estate – development/other	(93,210)	(76,635)
Capital expenditures to real estate	(81,528)	(85,987)
Non-real estate capital additions	(1,466)	(2,145)
Interest capitalized for real estate under development	(2,679)	(2,937)
Proceeds from disposition of real estate, net	393,439	287,173
Investments in unconsolidated entities	(8,572)	(3,099)
Distributions from unconsolidated entities – return of capital	78,262
Purchase of investment securities and other investments	(269)
Net cash provided by (used for) investing activities	(369,155)	(84,176)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt financing costs	(6,069)	(4,354)
Mortgage notes payable, net:
Proceeds	295,620
Lump sum payoffs	(95,500)	(725,639)
Scheduled principal repayments	(3,110)	(3,273)
Notes, net:
Proceeds	597,480	497,010
Line of credit and commercial paper:
Line of credit proceeds	1,995,000	415,000
Line of credit repayments	(1,995,000)	(415,000)
Commercial paper proceeds	7,775,817	4,766,050
Commercial paper repayments	(8,275,000)	(4,720,000)
Proceeds from (payments on) settlement of derivative instruments	(41,616)	1,638
Proceeds from Employee Share Purchase Plan (ESPP)	1,652	2,181
Proceeds from exercise of options	48,487	2,617
Payment of offering costs	(155)	(27)
Other financing activities, net	(49)	(48)
Contributions – Noncontrolling Interests – Partially Owned Properties	4,594	125
Contributions – Noncontrolling Interests – Operating Partnership		1
Distributions:
Common Shares	(409,943)	(384,315)
Preferred Shares	(773)	(1,545)
Noncontrolling Interests – Operating Partnership	(14,728)	(13,854)
Noncontrolling Interests – Partially Owned Properties	(5,170)	(7,620)
Net cash provided by (used for) financing activities	(128,463)	(613,163)
Net increase (decrease) in cash and cash equivalents and restricted deposits	193,155	(11,885)
Cash and cash equivalents and restricted deposits, beginning of period	116,313	100,762
Cash and cash equivalents and restricted deposits, end of period	309,468	88,877
Cash and cash equivalents	251,273	34,507
Restricted deposits	58,195	54,370
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	171,116	188,913
Net cash paid for income and other taxes	754	644
Amortization of deferred financing costs:
Other assets	1,206	1,206
Mortgage notes payable, net	2,344	2,552
Notes, net	2,233	2,020
Amortization of discounts and premiums on debt:
Mortgage notes payable, net	16,426	1,963
Notes, net	1,369	1,300
Amortization of deferred settlements on derivative instruments:
Other liabilities	(6)	(5)
Accumulated other comprehensive income	8,902	9,307
Write-off of pursuit costs:
Investment in real estate, net	2,947	2,042
Other assets	37	10
Accounts payable and accrued expenses	3	14
(Income) loss from investments in unconsolidated entities:
Investments in unconsolidated entities	(68,735)	1,321
Other liabilities	677	687
Realized/unrealized (gain) loss on derivative instruments:
Other assets	2,002	(13,226)
Notes, net	2,253	(2,151)
Other liabilities	29,510	3,382
Accumulated other comprehensive income	(33,765)	11,995
Investments in unconsolidated entities:
Investments in unconsolidated entities	(6,472)	(2,379)
Other liabilities	(2,100)	(720)
Debt financing costs:
Other assets	145
Mortgage notes payable, net	(2,237)
Notes, net	(5,213)	(4,354)
Other liabilities	1,236
Right-of-use assets and lease liabilities initial measurement and reclassifications:
Right-of-use assets	(438,705)
Other assets	184,116
Lease liabilities	282,791
Other liabilities	$ (28,202)
Mortgage Notes Payable, Net [Member]
Mortgage notes payable, net:
Net gain (loss) on debt extinguishment		$ (22,110)

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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Thousands	Total	PREFERRED SHARES	COMMON SHARES, $0.01 PAR VALUE	PAID IN CAPITAL	RETAINED EARNINGS	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	DISTRIBUTIONS	OPERATING PARTNERSHIP	PARTIALLY OWNED PROPERTIES
Balance, beginning of year at Dec. 31, 2017		$ 37,280	$ 3,680	$ 8,886,586	$ 1,403,530	$ (88,612)
Balance, beginning of year at Dec. 31, 2017								$ 226,691	$ 4,708
COMMON SHARES, $0.01 PAR VALUE
Conversion of OP Units into Common Shares				331
Exercise of share options			1	2,616
Employee Share Purchase Plan (ESPP)			1	2,180
Share-based employee compensation expense:
Restricted shares			1	5,162
Share options				8,536
ESPP discount				400
Offering costs				(27)
Supplemental Executive Retirement Plan (SERP)				(538)
Change in market value of Redeemable Noncontrolling Interests – Operating Partnership	$ 172			(172)
Adjustment for Noncontrolling Interests ownership in Operating Partnership				110				(110)
PAID IN CAPITAL
Conversion of OP Units into Common Shares				331
Exercise of share options			1	2,616
Employee Share Purchase Plan (ESPP)			1	2,180
RETAINED EARNINGS
Net income attributable to controlling interests	325,411				325,411
Common Share distributions					(397,796)
Preferred Share distributions					(1,545)
Accumulated other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	11,995					11,995
Losses reclassified into earnings from other comprehensive income	(9,307)					9,307
DISTRIBUTIONS
Distributions declared per Common Share outstanding							$ 1.08
NONCONTROLLING INTERESTS
Issuance of restricted units to Noncontrolling Interests								1
Conversion of OP Units into Common Shares				331
Equity compensation associated with Noncontrolling Interests								8,116
Net income	338,958
Distributions to Noncontrolling Interests								(14,374)	(7,668)
Change in carrying value of Redeemable Noncontrolling Interests - Operating Partnership	(644)							644
Adjustment for Noncontrolling Interests ownership in Operating Partnership				110				(110)
Conversion of OP Units held by Noncontrolling Interests into OP Units held by General Partner								(331)
Net income attributable to Noncontrolling Interests	12,358							12,358	1,189
PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	12,358							12,358	1,189
Contributions by Noncontrolling Interests									125
Distributions to Noncontrolling Interests								(14,374)	(7,668)
Balance, end of period at Jun. 30, 2018		37,280	3,683	8,905,184	1,329,600	(67,310)
Balance, end of period at Jun. 30, 2018								232,995	(1,646)
Balance, beginning of year at Mar. 31, 2018		37,280	3,682	8,910,306	1,415,638	(77,734)
Balance, beginning of year at Mar. 31, 2018								234,628	1,293
COMMON SHARES, $0.01 PAR VALUE
Conversion of OP Units into Common Shares				197
Exercise of share options				1,017
Employee Share Purchase Plan (ESPP)			1	499
Share-based employee compensation expense:
Restricted shares				2,540
Share options				1,198
ESPP discount				103
Offering costs				(1)
Supplemental Executive Retirement Plan (SERP)				(621)
Change in market value of Redeemable Noncontrolling Interests – Operating Partnership				(13,003)
Adjustment for Noncontrolling Interests ownership in Operating Partnership				2,949				(2,949)
PAID IN CAPITAL
Conversion of OP Units into Common Shares				197
Exercise of share options				1,017
Employee Share Purchase Plan (ESPP)			1	499
RETAINED EARNINGS
Net income attributable to controlling interests	113,602				113,602
Common Share distributions					(198,868)
Preferred Share distributions					(772)
Accumulated other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	5,908					5,908
Losses reclassified into earnings from other comprehensive income	(4,516)					4,516
DISTRIBUTIONS
Distributions declared per Common Share outstanding							0.54
NONCONTROLLING INTERESTS
Conversion of OP Units into Common Shares				197
Equity compensation associated with Noncontrolling Interests								3,313
Net income	118,410
Distributions to Noncontrolling Interests								(7,186)	(3,448)
Change in carrying value of Redeemable Noncontrolling Interests - Operating Partnership								1,087
Adjustment for Noncontrolling Interests ownership in Operating Partnership				2,949				(2,949)
Conversion of OP Units held by Noncontrolling Interests into OP Units held by General Partner								(197)
Net income attributable to Noncontrolling Interests	4,299							4,299	509
PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	4,299							4,299	509
Distributions to Noncontrolling Interests								(7,186)	(3,448)
Balance, end of period at Jun. 30, 2018		37,280	3,683	8,905,184	1,329,600	(67,310)
Balance, end of period at Jun. 30, 2018								232,995	(1,646)
Balance, beginning of year at Dec. 31, 2018	10,173,204	37,280	3,694	8,935,453	1,261,763	(64,986)
Balance, beginning of year at Dec. 31, 2018	226,445							228,738	(2,293)
COMMON SHARES, $0.01 PAR VALUE
Conversion of OP Units into Common Shares			2	4,869
Exercise of share options			10	48,477
Employee Share Purchase Plan (ESPP)				1,652
Share-based employee compensation expense:
Restricted shares			2	7,980
Share options				1,682
ESPP discount				365
Offering costs				(155)
Supplemental Executive Retirement Plan (SERP)				(1,539)
Change in market value of Redeemable Noncontrolling Interests – Operating Partnership	56,974			(56,974)
Adjustment for Noncontrolling Interests ownership in Operating Partnership				7,771				(7,771)
PAID IN CAPITAL
Conversion of OP Units into Common Shares			2	4,869
Exercise of share options			10	48,477
Employee Share Purchase Plan (ESPP)				1,652
RETAINED EARNINGS
Net income attributable to controlling interests	413,507				413,507
Common Share distributions					(420,916)
Preferred Share distributions					(1,545)
Accumulated other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	(33,765)					(33,765)
Losses reclassified into earnings from other comprehensive income	(8,902)					8,902
DISTRIBUTIONS
Distributions declared per Common Share outstanding							1.135
NONCONTROLLING INTERESTS
Conversion of OP Units into Common Shares			2	4,869
Equity compensation associated with Noncontrolling Interests								10,829
Net income	430,556
Distributions to Noncontrolling Interests								(15,079)	(5,219)
Change in carrying value of Redeemable Noncontrolling Interests - Operating Partnership	(45)							45
Adjustment for Noncontrolling Interests ownership in Operating Partnership				7,771				(7,771)
Conversion of OP Units held by Noncontrolling Interests into OP Units held by General Partner								(4,871)
Net income attributable to Noncontrolling Interests	15,429							15,429	1,620
PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	15,429							15,429	1,620
Contributions by Noncontrolling Interests									4,594
Distributions to Noncontrolling Interests								(15,079)	(5,219)
Balance, end of period at Jun. 30, 2019	10,153,529	37,280	3,708	8,949,581	1,252,809	(89,849)
Balance, end of period at Jun. 30, 2019	226,022							227,320	(1,298)
Balance, beginning of year at Mar. 31, 2019		37,280	3,705	8,925,882	1,155,032	(75,013)
Balance, beginning of year at Mar. 31, 2019								225,081	(5,462)
COMMON SHARES, $0.01 PAR VALUE
Conversion of OP Units into Common Shares				84
Exercise of share options			3	18,624
Employee Share Purchase Plan (ESPP)				526
Share-based employee compensation expense:
Restricted shares				3,404
Share options				889
ESPP discount				98
Offering costs				(155)
Supplemental Executive Retirement Plan (SERP)				(937)
Change in market value of Redeemable Noncontrolling Interests – Operating Partnership				(1,953)
Adjustment for Noncontrolling Interests ownership in Operating Partnership				3,119				(3,119)
PAID IN CAPITAL
Conversion of OP Units into Common Shares				84
Exercise of share options			3	18,624
Employee Share Purchase Plan (ESPP)				526
RETAINED EARNINGS
Net income attributable to controlling interests	308,968				308,968
Common Share distributions					(210,419)
Preferred Share distributions					(772)
Accumulated other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	(19,345)					(19,345)
Losses reclassified into earnings from other comprehensive income	(4,509)					4,509
DISTRIBUTIONS
Distributions declared per Common Share outstanding							$ 0.5675
NONCONTROLLING INTERESTS
Conversion of OP Units into Common Shares				84
Equity compensation associated with Noncontrolling Interests								2,926
Net income	321,299
Distributions to Noncontrolling Interests								(7,474)	(1,251)
Change in carrying value of Redeemable Noncontrolling Interests - Operating Partnership								(1,520)
Adjustment for Noncontrolling Interests ownership in Operating Partnership				3,119				(3,119)
Conversion of OP Units held by Noncontrolling Interests into OP Units held by General Partner								(84)
Net income attributable to Noncontrolling Interests	11,510							11,510	821
PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	11,510							11,510	821
Contributions by Noncontrolling Interests									4,594
Distributions to Noncontrolling Interests								(7,474)	(1,251)
Balance, end of period at Jun. 30, 2019	10,153,529	$ 37,280	$ 3,708	$ 8,949,581	$ 1,252,809	$ (89,849)
Balance, end of period at Jun. 30, 2019	$ 226,022							$ 227,320	$ (1,298)

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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Statement Of Stockholders Equity [Abstract]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01	$ 0.01

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CONSOLIDATED BALANCE SHEETS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
ASSETS
Land	$ 5,889,308	$ 5,875,803
Depreciable property	20,824,053	20,435,901
Projects under development	171,869	109,409
Land held for development	110,545	89,909
Investment in real estate	26,995,775	26,511,022
Accumulated depreciation	(7,026,622)	(6,696,281)
Investment in real estate, net	19,969,153	19,814,741
Investments in unconsolidated entities	52,907	58,349
Cash and cash equivalents	251,273	47,442
Restricted deposits	58,195	68,871
Right-of-use assets	431,753	0
Other assets	227,430	404,806
Total assets	20,990,711	20,394,209
Liabilities:
Mortgage notes payable, net	2,599,013	2,385,470
Notes, net	6,531,408	5,933,286
Line of credit and commercial paper	0	499,183
Accounts payable and accrued expenses	108,574	102,471
Accrued interest payable	64,158	62,622
Lease liabilities	281,620	0
Other liabilities	302,628	358,563
Security deposits	69,027	67,258
Distributions payable	218,697	206,601
Total liabilities	10,175,125	9,615,454
Commitments and contingencies
Partners’ Capital:
Accumulated other comprehensive income (loss)	(89,849)	(64,986)
Noncontrolling Interests – Partially Owned Properties	(1,298)	(2,293)
Total liabilities and equity/capital	20,990,711	20,394,209
ERPOP [Member]
ASSETS
Land	5,889,308	5,875,803
Depreciable property	20,824,053	20,435,901
Projects under development	171,869	109,409
Land held for development	110,545	89,909
Investment in real estate	26,995,775	26,511,022
Accumulated depreciation	(7,026,622)	(6,696,281)
Investment in real estate, net	19,969,153	19,814,741
Investments in unconsolidated entities	52,907	58,349
Cash and cash equivalents	251,273	47,442
Restricted deposits	58,195	68,871
Right-of-use assets	431,753
Other assets	227,430	404,806
Total assets	20,990,711	20,394,209
Liabilities:
Mortgage notes payable, net	2,599,013	2,385,470
Notes, net	6,531,408	5,933,286
Line of credit and commercial paper		499,183
Accounts payable and accrued expenses	108,574	102,471
Accrued interest payable	64,158	62,622
Lease liabilities	281,620
Other liabilities	302,628	358,563
Security deposits	69,027	67,258
Distributions payable	218,697	206,601
Total liabilities	10,175,125	9,615,454
Commitments and contingencies
Redeemable Limited Partners	436,035	379,106
Partners’ Capital:
Preference Units	37,280	37,280
General Partner	10,206,098	10,200,910
Limited Partners	227,320	228,738
Accumulated other comprehensive income (loss)	(89,849)	(64,986)
Total partners’ capital	10,380,849	10,401,942
Noncontrolling Interests – Partially Owned Properties	(1,298)	(2,293)
Total capital	10,379,551	10,399,649
Total liabilities and equity/capital	$ 20,990,711	$ 20,394,209

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CONSOLIDATED STATEMENTS OF OPERATIONS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
REVENUES
Rental income	$ 669,374	$ 639,620	$ 1,331,676	$ 1,272,451
Fee and asset management	$ 143	$ 188	$ 335	$ 373
Type of Revenue [Extensible List]	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember
Total revenues	$ 669,517	$ 639,808	$ 1,332,011	$ 1,272,824
EXPENSES
Property and maintenance	108,461	103,744	223,531	211,946
Real estate taxes and insurance	91,446	89,482	182,888	181,396
Property management	24,369	23,484	50,765	46,928
General and administrative	14,329	12,502	29,710	28,780
Depreciation	200,508	192,942	404,723	389,251
Total expenses	439,113	422,154	891,617	858,301
Net gain (loss) on sales of real estate properties	138,856	(51)	138,835	142,162
Operating income	369,260	217,603	579,229	556,685
Interest and other income	1,009	1,116	1,590	6,996
Other expenses	(5,117)	(3,769)	(8,392)	(7,210)
Interest:
Expense incurred, net	(108,902)	(94,131)	(203,840)	(210,235)
Amortization of deferred financing costs	(3,647)	(2,099)	(5,783)	(5,778)
Income before income and other taxes, income (loss) from investments in unconsolidated entities and net gain (loss) on sales of land parcels	252,603	118,720	362,804	340,458
Income and other tax (expense) benefit	(246)	(274)	(484)	(487)
Income (loss) from investments in unconsolidated entities	68,765	(1,031)	68,058	(2,008)
Net gain (loss) on sales of land parcels	177	995	178	995
Net income	321,299	118,410	430,556	338,958
Partially Owned Properties	(821)	(509)	(1,620)	(1,189)
Net income attributable to controlling interests	$ 308,968	$ 113,602	$ 413,507	$ 325,411
Earnings per Unit – basic:
Net income available to Units	$ 0.83	$ 0.31	$ 1.11	$ 0.88
Earnings per Unit – diluted:
Net income available to Units	$ 0.83	$ 0.31	$ 1.11	$ 0.88
Weighted average Units outstanding	386,107	383,423	385,644	383,224
ERPOP [Member]
REVENUES
Rental income	$ 669,374	$ 639,620	$ 1,331,676	$ 1,272,451
Fee and asset management	$ 143	$ 188	$ 335	$ 373
Type of Revenue [Extensible List]	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember
Total revenues	$ 669,517	$ 639,808	$ 1,332,011	$ 1,272,824
EXPENSES
Property and maintenance	108,461	103,744	223,531	211,946
Real estate taxes and insurance	91,446	89,482	182,888	181,396
Property management	24,369	23,484	50,765	46,928
General and administrative	14,329	12,502	29,710	28,780
Depreciation	200,508	192,942	404,723	389,251
Total expenses	439,113	422,154	891,617	858,301
Net gain (loss) on sales of real estate properties	138,856	(51)	138,835	142,162
Operating income	369,260	217,603	579,229	556,685
Interest and other income	1,009	1,116	1,590	6,996
Other expenses	(5,117)	(3,769)	(8,392)	(7,210)
Interest:
Expense incurred, net	(108,902)	(94,131)	(203,840)	(210,235)
Amortization of deferred financing costs	(3,647)	(2,099)	(5,783)	(5,778)
Income before income and other taxes, income (loss) from investments in unconsolidated entities and net gain (loss) on sales of land parcels	252,603	118,720	362,804	340,458
Income and other tax (expense) benefit	(246)	(274)	(484)	(487)
Income (loss) from investments in unconsolidated entities	68,765	(1,031)	68,058	(2,008)
Net gain (loss) on sales of land parcels	177	995	178	995
Net income	321,299	118,410	430,556	338,958
Partially Owned Properties	(821)	(509)	(1,620)	(1,189)
Net income attributable to controlling interests	320,478	117,901	428,936	337,769
ALLOCATION OF NET INCOME:
Preference Units	772	772	1,545	1,545
General Partner	308,196	112,830	411,962	323,866
Limited Partners	11,510	4,299	15,429	12,358
Net income available to Units	$ 319,706	$ 117,129	$ 427,391	$ 336,224
Earnings per Unit – basic:
Net income available to Units	$ 0.83	$ 0.31	$ 1.11	$ 0.88
Weighted average Units outstanding	383,227	380,795	382,854	380,729
Earnings per Unit – diluted:
Net income available to Units	$ 0.83	$ 0.31	$ 1.11	$ 0.88
Weighted average Units outstanding	386,107	383,423	385,644	383,224

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Comprehensive income:
Net income	$ 321,299	$ 118,410	$ 430,556	$ 338,958
Other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	(19,345)	5,908	(33,765)	11,995
Losses reclassified into earnings from other comprehensive income	4,509	4,516	8,902	9,307
Other comprehensive income (loss)	(14,836)	10,424	(24,863)	21,302
Comprehensive income	306,463	128,834	405,693	360,260
Comprehensive (income) attributable to Noncontrolling Interests – Partially Owned Properties	(11,797)	(5,190)	(16,150)	(14,329)
Comprehensive income attributable to controlling interests	294,666	123,644	389,543	345,931
ERPOP [Member]
Comprehensive income:
Net income	321,299	118,410	430,556	338,958
Other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	(19,345)	5,908	(33,765)	11,995
Losses reclassified into earnings from other comprehensive income	4,509	4,516	8,902	9,307
Other comprehensive income (loss)	(14,836)	10,424	(24,863)	21,302
Comprehensive income	306,463	128,834	405,693	360,260
Comprehensive (income) attributable to Noncontrolling Interests – Partially Owned Properties	(821)	(509)	(1,620)	(1,189)
Comprehensive income attributable to controlling interests	$ 305,642	$ 128,325	$ 404,073	$ 359,071

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 430,556	$ 338,958
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	404,723	389,251
Amortization of deferred financing costs	5,783	5,778
Amortization of above/below market lease intangibles	(35)	2,196
Amortization of discounts and premiums on debt	17,795	3,263
Amortization of deferred settlements on derivative instruments	8,896	9,302
Amortization of right-of-use assets	6,952
Write-off of pursuit costs	2,987	2,066
(Income) loss from investments in unconsolidated entities	(68,058)	2,008
Distributions from unconsolidated entities – return on capital	2,387	1,188
Net (gain) loss on sales of real estate properties	(138,835)	(142,162)
Net (gain) loss on sales of land parcels	(178)	(995)
Net (gain) loss on debt extinguishment		22,110
Compensation paid with Company Common Shares	16,782	17,032
Changes in assets and liabilities:
(Increase) decrease in other assets	1,610	417
Increase (decrease) in accounts payable and accrued expenses	22,435	25,396
Increase (decrease) in accrued interest payable	1,536	5,306
Increase (decrease) in lease liabilities	(1,171)
Increase (decrease) in other liabilities	(25,161)	2,549
Increase (decrease) in security deposits	1,769	1,791
Net cash provided by operating activities	690,773	685,454
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in real estate – acquisitions	(653,132)	(200,546)
Investment in real estate – development/other	(93,210)	(76,635)
Capital expenditures to real estate	(81,528)	(85,987)
Non-real estate capital additions	(1,466)	(2,145)
Interest capitalized for real estate under development	(2,679)	(2,937)
Proceeds from disposition of real estate, net	393,439	287,173
Investments in unconsolidated entities	(8,572)	(3,099)
Distributions from unconsolidated entities – return of capital	78,262
Purchase of investment securities and other investments	(269)
Net cash provided by (used for) investing activities	(369,155)	(84,176)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt financing costs	(6,069)	(4,354)
Mortgage notes payable, net:
Proceeds	295,620
Lump sum payoffs	(95,500)	(725,639)
Scheduled principal repayments	(3,110)	(3,273)
Notes, net:
Proceeds	597,480	497,010
Line of credit and commercial paper:
Line of credit proceeds	1,995,000	415,000
Line of credit repayments	(1,995,000)	(415,000)
Commercial paper proceeds	7,775,817	4,766,050
Commercial paper repayments	(8,275,000)	(4,720,000)
Proceeds from (payments on) settlement of derivative instruments	(41,616)	1,638
Proceeds from Employee Share Purchase Plan (ESPP)	1,652	2,181
Proceeds from exercise of EQR options	48,487	2,617
Payment of offering costs	(155)	(27)
Other financing activities, net	(49)	(48)
Contributions – Noncontrolling Interests – Partially Owned Properties	4,594	125
Contributions – Limited Partners		1
Distributions:
OP Units – General Partner	(409,943)	(384,315)
Preference Units	(773)	(1,545)
OP Units – Limited Partners	(14,728)	(13,854)
Noncontrolling Interests – Partially Owned Properties	(5,170)	(7,620)
Net cash provided by (used for) financing activities	(128,463)	(613,163)
Net increase (decrease) in cash and cash equivalents and restricted deposits	193,155	(11,885)
Cash and cash equivalents and restricted deposits, beginning of period	116,313	100,762
Cash and cash equivalents and restricted deposits, end of period	309,468	88,877
Cash and cash equivalents	251,273	34,507
Restricted deposits	58,195	54,370
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	171,116	188,913
Net cash paid for income and other taxes	754	644
Amortization of deferred financing costs:
Other assets	1,206	1,206
Mortgage notes payable, net	2,344	2,552
Notes, net	2,233	2,020
Amortization of discounts and premiums on debt:
Mortgage notes payable, net	16,426	1,963
Notes, net	1,369	1,300
Amortization of deferred settlements on derivative instruments:
Other liabilities	(6)	(5)
Accumulated other comprehensive income	8,902	9,307
Write-off of pursuit costs:
Investment in real estate, net	2,947	2,042
Other assets	37	10
Accounts payable and accrued expenses	3	14
(Income) loss from investments in unconsolidated entities:
Investments in unconsolidated entities	(68,735)	1,321
Other liabilities	677	687
Realized/unrealized (gain) loss on derivative instruments:
Other assets	2,002	(13,226)
Notes, net	2,253	(2,151)
Other liabilities	29,510	3,382
Accumulated other comprehensive income	(33,765)	11,995
Investments in unconsolidated entities:
Investments in unconsolidated entities	(6,472)	(2,379)
Other liabilities	(2,100)	(720)
Debt financing costs:
Other assets	145
Mortgage notes payable, net	(2,237)
Notes, net	(5,213)	(4,354)
Other liabilities	1,236
Right-of-use assets and lease liabilities initial measurement and reclassifications:
Right-of-use assets	(438,705)
Other assets	184,116
Lease liabilities	282,791
Other liabilities	(28,202)
Mortgage Notes Payable, Net [Member]
Mortgage notes payable, net:
Net gain (loss) on debt extinguishment		(22,110)
ERPOP [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	430,556	338,958
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	404,723	389,251
Amortization of deferred financing costs	5,783	5,778
Amortization of above/below market lease intangibles	(35)	2,196
Amortization of discounts and premiums on debt	17,795	3,263
Amortization of deferred settlements on derivative instruments	8,896	9,302
Amortization of right-of-use assets	6,952
Write-off of pursuit costs	2,987	2,066
(Income) loss from investments in unconsolidated entities	(68,058)	2,008
Distributions from unconsolidated entities – return on capital	2,387	1,188
Net (gain) loss on sales of real estate properties	(138,835)	(142,162)
Net (gain) loss on sales of land parcels	(178)	(995)
Net (gain) loss on debt extinguishment		22,110
Compensation paid with Company Common Shares	16,782	17,032
Changes in assets and liabilities:
(Increase) decrease in other assets	1,610	417
Increase (decrease) in accounts payable and accrued expenses	22,435	25,396
Increase (decrease) in accrued interest payable	1,536	5,306
Increase (decrease) in lease liabilities	(1,171)
Increase (decrease) in other liabilities	(25,161)	2,549
Increase (decrease) in security deposits	1,769	1,791
Net cash provided by operating activities	690,773	685,454
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in real estate – acquisitions	(653,132)	(200,546)
Investment in real estate – development/other	(93,210)	(76,635)
Capital expenditures to real estate	(81,528)	(85,987)
Non-real estate capital additions	(1,466)	(2,145)
Interest capitalized for real estate under development	(2,679)	(2,937)
Proceeds from disposition of real estate, net	393,439	287,173
Investments in unconsolidated entities	(8,572)	(3,099)
Distributions from unconsolidated entities – return of capital	78,262
Purchase of investment securities and other investments	(269)
Net cash provided by (used for) investing activities	(369,155)	(84,176)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt financing costs	(6,069)	(4,354)
Mortgage notes payable, net:
Proceeds	295,620
Lump sum payoffs	(95,500)	(725,639)
Scheduled principal repayments	(3,110)	(3,273)
Notes, net:
Proceeds	597,480	497,010
Line of credit and commercial paper:
Line of credit proceeds	1,995,000	415,000
Line of credit repayments	(1,995,000)	(415,000)
Commercial paper proceeds	7,775,817	4,766,050
Commercial paper repayments	(8,275,000)	(4,720,000)
Proceeds from (payments on) settlement of derivative instruments	(41,616)	1,638
Proceeds from Employee Share Purchase Plan (ESPP)	1,652	2,181
Proceeds from exercise of EQR options	48,487	2,617
Payment of offering costs	(155)	(27)
Other financing activities, net	(49)	(48)
Contributions – Noncontrolling Interests – Partially Owned Properties	4,594	125
Contributions – Limited Partners		1
Distributions:
OP Units – General Partner	(409,943)	(384,315)
Preference Units	(773)	(1,545)
OP Units – Limited Partners	(14,728)	(13,854)
Noncontrolling Interests – Partially Owned Properties	(5,170)	(7,620)
Net cash provided by (used for) financing activities	(128,463)	(613,163)
Net increase (decrease) in cash and cash equivalents and restricted deposits	193,155	(11,885)
Cash and cash equivalents and restricted deposits, beginning of period	116,313	100,762
Cash and cash equivalents and restricted deposits, end of period	309,468	88,877
Cash and cash equivalents	251,273	34,507
Restricted deposits	58,195	54,370
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	171,116	188,913
Net cash paid for income and other taxes	754	644
Amortization of deferred financing costs:
Other assets	1,206	1,206
Mortgage notes payable, net	2,344	2,552
Notes, net	2,233	2,020
Amortization of discounts and premiums on debt:
Mortgage notes payable, net	16,426	1,963
Notes, net	1,369	1,300
Amortization of deferred settlements on derivative instruments:
Other liabilities	(6)	(5)
Accumulated other comprehensive income	8,902	9,307
Write-off of pursuit costs:
Investment in real estate, net	2,947	2,042
Other assets	37	10
Accounts payable and accrued expenses	3	14
(Income) loss from investments in unconsolidated entities:
Investments in unconsolidated entities	(68,735)	1,321
Other liabilities	677	687
Realized/unrealized (gain) loss on derivative instruments:
Other assets	2,002	(13,226)
Notes, net	2,253	(2,151)
Other liabilities	29,510	3,382
Accumulated other comprehensive income	(33,765)	11,995
Investments in unconsolidated entities:
Investments in unconsolidated entities	(6,472)	(2,379)
Other liabilities	(2,100)	(720)
Debt financing costs:
Other assets	145
Mortgage notes payable, net	(2,237)
Notes, net	(5,213)	(4,354)
Other liabilities	1,236
Right-of-use assets and lease liabilities initial measurement and reclassifications:
Right-of-use assets	(438,705)
Other assets	184,116
Lease liabilities	282,791
Other liabilities	$ (28,202)
ERPOP [Member] | Mortgage Notes Payable, Net [Member]
Mortgage notes payable, net:
Net gain (loss) on debt extinguishment		$ (22,110)

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CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) $ in Thousands	Total	ERPOP [Member]	PREFERRED SHARES ERPOP [Member]	General Partner [Member]	General Partner [Member] ERPOP [Member]	Limited Partner ERPOP [Member]	ACCUMULATED OTHER COMPREHENSIVE (LOSS) [Member] ERPOP [Member]	DISTRIBUTIONS	Partially Owned Properties ERPOP [Member]
Balance, beginning of year at Dec. 31, 2017			$ 37,280		$ 10,293,796	$ 226,691	$ (88,612)
Balance, beginning of year at Dec. 31, 2017									$ 4,708
OP Unit Issuance:
Conversion of OP Units held by Limited Partners into OP Units held by General Partner					331	(331)
Exercise of EQR share options					2,617
EQR's Employee Share Purchase Plan (ESPP)				$ 2,181
Share-based employee compensation expense:
EQR restricted shares					5,163
EQR share options					8,536
EQR ESPP discount					400
Net income available to Units - General Partner		$ 323,866			323,866
OP Units General Partner distributions					(397,796)
Offering costs					(27)
Supplemental Executive Retirement Plan (SERP)					(538)
Change in market value of Redeemable Limited Partners					(172)
Adjustment for Limited Partners ownership in Operating Partnership					110	(110)
LIMITED PARTNERS
Issuance of restricted units to Limited Partners						1
Conversion of OP Units held by Limited Partners into OP Units held by General Partner					331	(331)
Equity compensation associated with Units - Limited Partners						8,116
Net income available to Units - Limited Partners		12,358				12,358
Units - Limited Partners distributions						(14,374)
Change in carrying value of Redeemable Limited Partners						644
Adjustment for Limited Partners ownership in Operating Partnership					110	(110)
Accumulated other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	$ 11,995	11,995					11,995
Losses reclassified into earnings from other comprehensive income	(9,307)	(9,307)					9,307
NONCONTROLLING INTERESTS PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	338,958	338,958							1,189
Contributions by Noncontrolling Interests									125
Distributions to Noncontrolling Interests									(7,668)
Balance, end of period at Jun. 30, 2018			37,280		10,238,467	232,995	(67,310)
Balance, end of period at Jun. 30, 2018									(1,646)
DISTRIBUTIONS
Distributions declared per Unit outstanding								$ 1.08
Balance, beginning of year at Mar. 31, 2018			37,280		10,329,626	234,628	(77,734)
Balance, beginning of year at Mar. 31, 2018									1,293
OP Unit Issuance:
Conversion of OP Units held by Limited Partners into OP Units held by General Partner					197	(197)
Exercise of EQR share options					1,017
EQR's Employee Share Purchase Plan (ESPP)				500
Share-based employee compensation expense:
EQR restricted shares					2,540
EQR share options					1,198
EQR ESPP discount					103
Net income available to Units - General Partner		112,830			112,830
OP Units General Partner distributions					(198,868)
Offering costs					(1)
Supplemental Executive Retirement Plan (SERP)					(621)
Change in market value of Redeemable Limited Partners					(13,003)
Adjustment for Limited Partners ownership in Operating Partnership					2,949	(2,949)
LIMITED PARTNERS
Conversion of OP Units held by Limited Partners into OP Units held by General Partner					197	(197)
Equity compensation associated with Units - Limited Partners						3,313
Net income available to Units - Limited Partners		4,299				4,299
Units - Limited Partners distributions						(7,186)
Change in carrying value of Redeemable Limited Partners						1,087
Adjustment for Limited Partners ownership in Operating Partnership					2,949	(2,949)
Accumulated other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	5,908	5,908					5,908
Losses reclassified into earnings from other comprehensive income	(4,516)	(4,516)					4,516
NONCONTROLLING INTERESTS PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	118,410	118,410							509
Distributions to Noncontrolling Interests									(3,448)
Balance, end of period at Jun. 30, 2018			37,280		10,238,467	232,995	(67,310)
Balance, end of period at Jun. 30, 2018									(1,646)
DISTRIBUTIONS
Distributions declared per Unit outstanding								0.54
Balance, beginning of year at Dec. 31, 2018			37,280		10,200,910	228,738	(64,986)
Balance, beginning of year at Dec. 31, 2018									(2,293)
OP Unit Issuance:
Conversion of OP Units held by Limited Partners into OP Units held by General Partner					4,871	(4,871)
Exercise of EQR share options					48,487
EQR's Employee Share Purchase Plan (ESPP)				1,652
Share-based employee compensation expense:
EQR restricted shares					7,982
EQR share options					1,682
EQR ESPP discount					365
Net income available to Units - General Partner		411,962			411,962
OP Units General Partner distributions					(420,916)
Offering costs					(155)
Supplemental Executive Retirement Plan (SERP)					(1,539)
Change in market value of Redeemable Limited Partners					(56,974)
Adjustment for Limited Partners ownership in Operating Partnership					7,771	(7,771)
LIMITED PARTNERS
Conversion of OP Units held by Limited Partners into OP Units held by General Partner					4,871	(4,871)
Equity compensation associated with Units - Limited Partners						10,829
Net income available to Units - Limited Partners		15,429				15,429
Units - Limited Partners distributions						(15,079)
Change in carrying value of Redeemable Limited Partners						45
Adjustment for Limited Partners ownership in Operating Partnership					7,771	(7,771)
Accumulated other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	(33,765)	(33,765)					(33,765)
Losses reclassified into earnings from other comprehensive income	(8,902)	(8,902)					8,902
NONCONTROLLING INTERESTS PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	430,556	430,556							1,620
Contributions by Noncontrolling Interests									4,594
Distributions to Noncontrolling Interests									(5,219)
Balance, end of period at Jun. 30, 2019			37,280		10,206,098	227,320	(89,849)
Balance, end of period at Jun. 30, 2019									(1,298)
DISTRIBUTIONS
Distributions declared per Unit outstanding								1.135
Balance, beginning of year at Mar. 31, 2019			37,280		10,084,619	225,081	(75,013)
Balance, beginning of year at Mar. 31, 2019									(5,462)
OP Unit Issuance:
Conversion of OP Units held by Limited Partners into OP Units held by General Partner					84	(84)
Exercise of EQR share options					18,627
EQR's Employee Share Purchase Plan (ESPP)				$ 526
Share-based employee compensation expense:
EQR restricted shares					3,404
EQR share options					889
EQR ESPP discount					98
Net income available to Units - General Partner		308,196			308,196
OP Units General Partner distributions					(210,419)
Offering costs					(155)
Supplemental Executive Retirement Plan (SERP)					(937)
Change in market value of Redeemable Limited Partners					(1,953)
Adjustment for Limited Partners ownership in Operating Partnership					3,119	(3,119)
LIMITED PARTNERS
Conversion of OP Units held by Limited Partners into OP Units held by General Partner					84	(84)
Equity compensation associated with Units - Limited Partners						2,926
Net income available to Units - Limited Partners		11,510				11,510
Units - Limited Partners distributions						(7,474)
Change in carrying value of Redeemable Limited Partners						(1,520)
Adjustment for Limited Partners ownership in Operating Partnership					3,119	(3,119)
Accumulated other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	(19,345)	(19,345)					(19,345)
Losses reclassified into earnings from other comprehensive income	(4,509)	(4,509)					4,509
NONCONTROLLING INTERESTS PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	$ 321,299	$ 321,299							821
Contributions by Noncontrolling Interests									4,594
Distributions to Noncontrolling Interests									(1,251)
Balance, end of period at Jun. 30, 2019			$ 37,280		$ 10,206,098	$ 227,320	$ (89,849)
Balance, end of period at Jun. 30, 2019									$ (1,298)
DISTRIBUTIONS
Distributions declared per Unit outstanding								$ 0.5675

XML

Business

6 Months Ended

Jun. 30, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Business

1. Business

Equity Residential (“EQR”) is an S&P 500 company focused on the acquisition, development and management of rental apartment properties located in urban and high-density suburban markets, a business that is conducted on its behalf by ERP Operating Limited Partnership (“ERPOP”).  EQR is a Maryland real estate investment trust (“REIT”) formed in March 1993 and ERPOP is an Illinois limited partnership formed in May 1993.  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, 2019 owned an approximate 96.4% 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, the net proceeds of which it is obligated to contribute to ERPOP, 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, 2019, the Company, directly or indirectly through investments in title holding entities, owned all or a portion of 309 properties located in 10 states and the District of Columbia consisting of 79,624 apartment units.  The ownership breakdown includes (table does not include various uncompleted development properties):

	Properties		Apartment Units
Wholly Owned Properties		291		75,927
Master-Leased Properties – Consolidated		1		162
Partially Owned Properties – Consolidated		17		3,535
		309		79,624

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2019

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, 2019  are not necessarily indicative of the results that may be expected for the year ending December 31, 2019.

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, 2018 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, 2018.

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 may incur both federal and state income taxes on any taxable income of such entities after consideration of any net operating losses.

In December 2017, H.R. 1, informally titled the Tax Cuts and Jobs Act (the “Tax Act”), became law. As of June 30, 2019, the Tax Act did not have a material impact on our REIT or subsidiary entities, our ability to continue to qualify as a REIT or on our results of operations.  

Recently Issued Accounting Pronouncements

In June 2016, the Financial Accounting Standards Board (“FASB”) issued a new standard which requires companies to adopt a new approach for estimating credit losses on certain types of financial instruments, such as trade and other receivables and loans.  The standard requires entities to estimate a lifetime expected credit loss for most financial instruments, including trade receivables. In November 2018, the FASB issued an amendment excluding operating lease receivables accounted for under the new leases standard from the scope of the new credit losses standard.  The new standard will be effective for the Company beginning on January 1, 2020, with early adoption permitted beginning January 1, 2019.  The Company is currently evaluating the impact of adopting the new standard on its consolidated results of operations and financial position.

Recently Adopted Accounting Pronouncements

In May 2014, the FASB issued a comprehensive new revenue recognition standard entitled Revenue from Contracts with Customers that superseded nearly all existing revenue recognition guidance.  The new standard specifically excludes lease revenue.  The new standard may be applied retrospectively to each prior period presented or prospectively with the cumulative effect, if any, recognized as of the date of adoption.  The Company selected the modified retrospective transition method as of the date of adoption as required effective January 1, 2018.  Approximately 94% of rental income consists of revenue from leasing arrangements, which is specifically excluded from the standard.  The Company analyzed its remaining revenue streams, inclusive of fee and asset management and gains and losses on sales, and concluded these revenue streams have the same timing and pattern of revenue recognition under the new guidance, and therefore the Company had no changes in revenue recognition with the adoption of the new standard.  As such, adoption of the standard did not result in a cumulative adjustment recognized as of January 1, 2018, and the standard did not have a material impact on the Company’s consolidated financial position, results of operations, equity/capital or cash flows.

For the remaining approximately 6% of rental income that is subject to the new revenue recognition standard, the Company’s disaggregated revenue streams are disclosed in the table included in the Company’s and the Operating Partnership’s Annual Report on Form 10-K for the year ended December 31, 2018 and are comparable with the percentage of rental income for the six months and quarter ended June 30, 2019.  These revenue streams have the same timing and pattern of revenue recognition across our reportable segments, with consistent allocations between the leasing and revenue recognition standards.  

Additionally, as part of the new revenue recognition standard, the FASB issued amendments related to partial sales of real estate.  Adoption of the new partial sales standard did not result in a change of accounting for the Company related to its disposition process.  We concluded that the Company’s typical dispositions will continue to meet the criteria for sale and associated profit recognition under both new standards.

In February 2016, the FASB issued a new leases standard which sets out principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessors and lessees).  The new standard requires the following:

• Lessors – Leases are accounted for using an approach that is substantially equivalent to existing guidance for operating,

sales-type and financing leases, but aligned with the new revenue recognition standard.  Lessors are required to allocate lease payments to separate lease and non-lease components of each lease agreement, with the non-lease components evaluated under the new revenue recognition standard.

• Lessees – Leases are accounted for using a dual approach, classifying leases as either operating or finance based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee.  This classification determines whether the lease expense is recognized on a straight-line basis over the term of the lease (for operating leases) or based on an effective interest method (for finance leases).  A lessee is also required to record a right-of-use asset and a lease liability on its balance sheet for all leases with a term of greater than 12 months regardless of their classification as operating or finance leases.  Leases with a term of 12 months or less are accounted for similar to existing guidance for operating leases.

The Company adopted this new standard as required effective January 1, 2019 using a modified retrospective method and the Company applied the new guidance as of the adoption date and elected certain practical expedients, as described below.  The standard impacted our consolidated balance sheets but did not impact our consolidated statements of operations. Right-of-use (“ROU”) assets and lease liabilities where the Company is the lessee were recognized for various corporate office leases and ground leases.  The Company recorded ROU assets and related lease liabilities to its opening balance sheet upon adoption on January 1, 2019 of $434.2 million and $278.3 million, respectively.  The Company calculated the net present value of the lease liabilities on January 1, 2019 and reclassed the following amounts from other assets and other liabilities to record our initial ROU assets (amounts in thousands):

	January 1, 2019			Balance Sheet Reclass:
Initial lease liabilities	$	278,287
Reclassifications:
Prepaid ground leases		17,886		Other Assets
Ground lease intangibles – below market, net		166,230		Other Assets
Ground lease intangibles – above market, net		(2,110	)	Other Liabilities
Straight-line rent liabilities (1)		(26,092	)	Other Liabilities
Initial right-of-use assets	$	434,201

(1) Straight-line rent liabilities relate to corporate office leases and certain ground leases.

In July 2018, the FASB issued an amendment to the new leases standard, which includes a practical expedient that provides lessors an option not to separate lease and non-lease components when certain criteria are met and instead account for those components as a single component under the new leases standard.  The amendment also provides a transition option that permits the application of the new guidance as of the adoption date rather than to all periods presented.  The Company elected the practical expedient to account for both its lease and non-lease components as a single component under the leases standard and elected the new transition option as of the date of adoption effective January 1, 2019. See Note 8 for additional discussion regarding the new lease standard.

In August 2017, the FASB issued a final standard which makes changes to the hedge accounting model to enable entities to better portray their risk management activities in the financial statements.  The new standard expands an entity’s ability to hedge nonfinancial and financial risk components, reduces complexity in fair value hedges of interest rate risk and eases certain documentation and assessment requirements.  The new standard also eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of any hedging instrument to be presented in the same income statement line as the hedged instrument.  The Company adopted this new standard as required effective January 1, 2019 and it did not have a material effect on its consolidated results of operations or financial position.

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Equity, Capital and Other Interests

6 Months Ended

Jun. 30, 2019

Equity Capital And Other Interests [Abstract]

Equity, Capital and Other Interests

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 restricted units) for the six months ended June 30, 2019 and 2018:

	2019			2018
Common Shares
Common Shares outstanding at January 1,		369,405,161			368,018,082
Common Shares Issued:
Conversion of OP Units		188,406			11,494
Exercise of share options		1,059,674			80,875
Employee Share Purchase Plan (ESPP)		27,131			44,858
Restricted share grants, net		158,438			123,027
Common Shares outstanding at June 30,		370,838,810			368,278,336
Units
Units outstanding at January 1,		13,904,035			13,768,438
Restricted unit grants, net		140,055			267,074
Conversion of OP Units to Common Shares		(188,406	)		(11,494	)
Units outstanding at June 30,		13,855,684			14,024,018
Total Common Shares and Units outstanding at    June 30,		384,694,494			382,302,354
Units Ownership Interest in Operating Partnership		3.6	%		3.7	%

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 restricted units, are collectively referred to as the “Noncontrolling Interests – Operating Partnership”.  Subject to certain exceptions (including the “book-up” requirements of restricted 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 cannot 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, 2019 and December 31, 2018.

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, 2019 and 2018, the Redeemable Noncontrolling Interests – Operating Partnership have a redemption value of approximately $436.0 million and $366.5 million, respectively, which represents the value of Common Shares that would be issued in exchange for 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, 2019 and 2018 (amounts in thousands):

	2019			2018
Balance at January 1,	$	379,106		$	366,955
Change in market value		56,974			172
Change in carrying value		(45	)		(644	)
Balance at June 30,	$	436,035		$	366,483

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, 2019 and December 31, 2018:

				Amounts in thousands
		Annual
	Call	Dividend Per		June 30,		December 31,
	Date (1)	Share (2)		2019		2018
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; 745,600 shares issued and    outstanding as of June 30, 2019 and December 31, 2018	12/10/26	$	4.145	$	37,280	$	37,280
				$	37,280	$	37,280

(1) On or after the call 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, 2019 and 2018:

	2019			2018
General and Limited Partner Units
General and Limited Partner Units outstanding at January 1,		383,309,196			381,786,520
Issued to General Partner:
Exercise of EQR share options		1,059,674			80,875
EQR’s Employee Share Purchase Plan (ESPP)		27,131			44,858
EQR’s restricted share grants, net		158,438			123,027
Issued to Limited Partners:
Restricted unit grants, net		140,055			267,074
General and Limited Partner Units outstanding at    June 30,		384,694,494			382,302,354
Limited Partner Units
Limited Partner Units outstanding at January 1,		13,904,035			13,768,438
Limited Partner restricted unit grants, net		140,055			267,074
Conversion of Limited Partner OP Units to EQR Common    Shares		(188,406	)		(11,494	)
Limited Partner Units outstanding at June 30,		13,855,684			14,024,018
Limited Partner Units Ownership Interest in Operating    Partnership		3.6	%		3.7	%

The Limited Partners of the Operating Partnership as of June 30, 2019 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 restricted units.  Subject to certain exceptions (including the “book-up” requirements of restricted 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 cannot 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, 2019 and December 31, 2018.

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, 2019 and 2018, the Redeemable Limited Partner Units have a redemption value of approximately $436.0 million and $366.5 million, respectively, which represents the value of Common Shares that would be issued in exchange for 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, 2019 and 2018 (amounts in thousands):

	2019			2018
Balance at January 1,	$	379,106		$	366,955
Change in market value		56,974			172
Change in carrying value		(45	)		(644	)
Balance at June 30,	$	436,035		$	366,483

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, 2019 and December 31, 2018:

				Amounts in thousands
		Annual
	Call	Dividend Per		June 30,		December 31,
	Date (1)	Unit (2)		2019		2018
Preference Units:
8.29% Series K Cumulative Redeemable Preference Units;    liquidation value $50 per unit; 745,600 units issued and    outstanding as of June 30, 2019 and December 31, 2018	12/10/26	$	4.145	$	37,280	$	37,280
				$	37,280	$	37,280

(1) On or after the call 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

EQR and ERPOP currently have an active universal shelf registration statement for the issuance of equity and debt securities that automatically became effective upon filing with the SEC in June 2019 and expires in June 2022.  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 has an At-The-Market (“ATM”) share offering program which allows EQR to sell Common Shares from time to time into the existing trading market at current market prices as well as through negotiated transactions.  In June 2019, the Company extended the program maturity to June 2022. EQR has the authority to issue 13.0 million shares but has not issued any shares under this program since September 2012.

The Company may repurchase up to 13.0 million Common Shares under its share repurchase program.  No open market repurchases have occurred since 2008, and no repurchases of any kind have occurred since February 2014.  As of June 30, 2019, EQR has remaining authorization to repurchase up to 13.0 million of its shares under the repurchase program.  

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Real Estate

6 Months Ended

Jun. 30, 2019

Real Estate [Abstract]

Real Estate

4. Real Estate

The following table summarizes the carrying amounts for the Company’s investment in real estate (at cost) as of June 30, 2019 and December 31, 2018 (amounts in thousands):

	June 30, 2019			December 31, 2018
Land	$	5,889,308		$	5,875,803
Depreciable property:
Buildings and improvements		18,529,097			18,232,625
Furniture, fixtures and equipment		1,813,243			1,722,231
In-Place lease intangibles		481,713			481,045
Projects under development:
Land		25,429			25,429
Construction-in-progress		146,440			83,980
Land held for development:
Land		74,187			61,038
Construction-in-progress		36,358			28,871
Investment in real estate		26,995,775			26,511,022
Accumulated depreciation		(7,026,622	)		(6,696,281	)
Investment in real estate, net	$	19,969,153		$	19,814,741

During the six months ended June 30, 2019, the Company acquired the following from unaffiliated parties (purchase price in thousands):

	Properties		Apartment Units		Purchase Price
Rental Properties – Consolidated (1)		6		1,644	$	634,650
Land Parcels (one) (2)		—		—		16,232
Total		6		1,644	$	650,882

(1) Purchase price includes an allocation of approximately $88.1 million to land and $548.5 million to depreciable property (inclusive of capitalized closing costs).

(2) Purchase price includes an allocation of approximately $13.1 million to vacant land and $3.4 million to construction-in-progress (inclusive of capitalized closing costs).  See Note 6 for additional discussion.

During the six months ended June 30, 2019, the Company disposed of the following to unaffiliated parties (sales price in thousands):

	Properties		Apartment Units		Sales Price
Rental Properties – Consolidated		2		561	$	402,750
Rental Properties – Unconsolidated (1)		2		945		394,500
Total		4		1,506	$	797,250

(1) The Company owned a 20% interest in both unconsolidated rental properties. Sales price listed is the gross sales price. The Company received net sales proceeds of approximately $78.3 million.

The Company recognized a net gain on sales of real estate properties of approximately $138.8 million and a net gain on sales of unconsolidated entities of approximately $69.5 million on the above sales.

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Commitments to Acquire/Dispose of Real Estate

6 Months Ended

Jun. 30, 2019

Commitments To Acquire Dispose Of Real Estate [Abstract]

Commitments to Acquire/Dispose of Real Estate

5. Commitments to Acquire/Dispose of Real Estate

The Company has entered into an agreement to acquire the following (purchase price in thousands):

	Properties		Apartment Units		Purchase Price
Rental Properties – Consolidated		1		398	$	189,000
Total		1		398	$	189,000

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

	Properties		Apartment Units		Sales Price
Rental Properties – Consolidated		7		940	$	336,925
Land Parcels (one)		—		—		4,150
Total		7		940	$	341,075

The closing of pending transactions is subject to certain conditions and restrictions; therefore, there can be no assurance that the transactions will be consummated or that the final terms will not differ in material respects from any agreements summarized above.  See Note 14 for discussion of the properties acquired or disposed of, if any, subsequent to June 30, 2019.

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Investments in Partially Owned Entities

6 Months Ended

Jun. 30, 2019

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).  

Consolidated Variable Interest Entities (“VIEs”)

In accordance with accounting standards for consolidation of VIEs, the Company consolidates ERPOP on EQR’s financial statements.  As the sole general partner of ERPOP, EQR has exclusive control of ERPOP’s day-to-day management.  The limited partners are not able to exercise substantive kick-out or participating rights.  As a result, ERPOP qualifies as a VIE.  EQR has a controlling financial interest in ERPOP and, thus, is ERPOP’s primary beneficiary.  EQR has the power to direct the activities of ERPOP that most significantly impact ERPOP’s economic performance as well as the obligation to absorb losses or the right to receive benefits from ERPOP that could potentially be significant to ERPOP.  

The Company has various equity interests in certain joint ventures owning 17 properties containing 3,535 apartment units.  The Company is the general partner or managing member of these joint ventures and is responsible for managing the operations and affairs of the joint ventures as well as making all decisions regarding the businesses of the joint ventures.  The limited partners or non-managing members are not able to exercise substantive kick-out or participating rights.  As a result, the joint ventures qualify as VIEs.  The Company has a controlling financial interest in the VIEs and, thus, is the VIEs’ primary beneficiary.  The Company has both the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance as well as the obligation to absorb losses or the right to receive benefits from the VIEs that could potentially be significant to the VIEs.  As a result, the joint ventures are required to be consolidated on the Company’s financial statements.  

During the six months ended June 30, 2019, the Company entered into a consolidated joint venture which is owned 90% by the Company and 10% by its joint venture partner, who is the general partner.  The joint venture has been deemed to be a VIE and is consolidated due to the Company being the primary beneficiary.  The joint venture owns a land parcel which it intends to develop into a multifamily rental property.

The consolidated assets and liabilities related to the VIEs discussed above were approximately $710.8 million and $321.3 million, respectively, at June 30, 2019 and approximately $713.6 million and $313.9 million, respectively, at December 31, 2018.

Investments in Unconsolidated Entities

The following table and information summarizes the Company’s investments in unconsolidated entities, which are accounted for under the equity method of accounting as the requirements for consolidation are not met, as of June 30, 2019 and December 31, 2018 (amounts in thousands except for ownership percentage):

	June 30, 2019		December 31, 2018		Ownership Percentage
Investments in Unconsolidated Entities:
Wisconsin Place Developer (VIE) (1)	$	41,383	$	42,365	33.3%
Operating Properties (Non-VIE) (2)		—		10,494	20.0%
Other		11,524		5,490	Varies
Investments in Unconsolidated Entities	$	52,907	$	58,349

(1) Represents an unconsolidated interest in an entity that owns the land underlying one of the consolidated joint venture properties noted above and owns and operates a related parking facility.  The joint venture, as a limited partner, does not have substantive kick-out or participating rights in the entity.  As a result, the entity qualifies as a VIE.  The joint venture does not have a controlling financial interest in the VIE and is

not the VIE’s primary beneficiary.  The joint venture does not have the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance or the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.  As a result, the entity that owns the land and owns and operates the parking facility is unconsolidated and recorded using the equity method of accounting.

(2) Includes two joint ventures under separate agreements with the same partner totaling 945 apartment units as of December 31, 2018.  During the six months ended June 30, 2019, the Company and its joint venture partner sold both properties under separate agreements to unaffiliated parties.  See Note 4 for additional discussion.

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Restricted Deposits

6 Months Ended

Jun. 30, 2019

Deposits Restricted [Abstract]

Restricted Deposits

7. Restricted Deposits

The following table presents the Company’s restricted deposits as of June 30, 2019 and December 31, 2018 (amounts in thousands):

	June 30, 2019		December 31, 2018
Mortgage escrow deposits:
Real estate taxes and insurance	$	1,181	$	876
Replacement reserves		8,599		8,641
Mortgage principal reserves/sinking funds		7,898		9,754
Other		852		852
Mortgage escrow deposits		18,530		20,123
Restricted cash:
Earnest money on pending acquisitions		1,000		5,000
Restricted deposits on real estate investments		1,493		540
Resident security and utility deposits		36,192		35,659
Other		980		7,549
Restricted cash		39,665		48,748
Restricted deposits	$	58,195	$	68,871

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Leases

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Leases

8. Leases

Lessor Accounting

The Company is the lessor for its residential and retail leases (including commercial leases) and these leases will continue to be accounted for as operating leases under the new standard as described in Note 2.  Therefore, the Company did not have significant changes in the accounting for its lease revenues.  

For the six months ended June 30, 2019, approximately 97.1% of the Company’s total lease revenue is generated from residential apartment leases that are generally for twelve months or less in length.  The residential apartment leases may include lease income related to such items as parking, storage and pet rent that the Company treats as a single lease component because the amenities cannot be leased on their own and the timing and pattern of revenue recognition are the same.  The collection of lease payments at lease commencement is probable and therefore the Company subsequently recognizes lease income over the lease term on a straight-line basis.  Residential leases are renewable upon consent of both parties on an annual or monthly basis.

For the six months ended June 30, 2019, approximately 2.9% of the Company’s total lease revenue is generated by retail leases that are generally for terms ranging between 5-10 years.  The retail leases generally consist of ground floor retail spaces and master-leased parking garages that serve as additional amenities for our residents.  The retail leases may include lease income related to such items as parking and storage rent that the Company treats as a single lease component because the amenities cannot be leased on their own and the timing and pattern of revenue recognition are the same.  The collection of lease payments at lease commencement is probable and therefore the Company subsequently recognizes lease income over the lease term on a straight-line basis.  Retail leases are renewable with market-based renewal options.

The Company elected the practical expedient to account for both its lease and non-lease components (specifically common area maintenance charges) as a single lease component under the leases standard.  

The following table presents the lease income types relating to lease payments for residential and retail leases for the six months and quarter ended June 30, 2019 (amounts in thousands):

	Six Months Ended June 30, 2019						Quarter Ended June 30, 2019
Lease Income Type	Residential Leases		Retail Leases		Total		Residential Leases		Retail Leases			Total
Residential and retail rent	$	1,190,729	$	36,163	$	1,226,892	$	598,209	$	17,693		$	615,902
Parking rent		18,469		159		18,628		9,332		87			9,419
Storage rent		1,856		31		1,887		937		(13	)		924
Pet rent		5,798		—		5,798		2,911		—			2,911
Total lease revenue (1)	$	1,216,852	$	36,353	$	1,253,205	$	611,389	$	17,767		$	629,156

(1) Excludes other rental income of $78.5 million for the six months ended June 30, 2019 and $40.2 million for the quarter ended June 30, 2019, which is accounted for under the revenue recognition standard.

Lessee Accounting

The Company is the lessee under various corporate office and ground leases for which the Company recognized ROU assets and related lease liabilities effective January 1, 2019.  The following table presents the Company’s ROU assets and related lease liabilities as of June 30, 2019 (amounts in thousands):  

	2019
Right-of-use assets:
Corporate office leases (1)	$	15,381
Ground leases		416,372
Right-of-use assets	$	431,753
Lease liabilities:
Corporate office leases (1)	$	16,879
Ground leases		264,741
Lease liabilities	$	281,620

(1) The Company has two corporate office leases that are considered short-term and therefore, there is no balance sheet impact and both leases continue to be expensed on a straight-line basis throughout the year.

As the standard requires the recognition of a liability for the lease obligation, discount rates are used to determine the net present value of the lease payments.  The discount rate for the lease is the rate implicit in the lease or, if that rate cannot be readily determined, the incremental borrowing rate.  As the Company does not know the amount of the lessors’ initial direct costs, it cannot readily determine the rate implicit in the lease and instead must apply the incremental borrowing rate.  The Company has estimated the discount rate ranges of 3.3% to 3.9% for corporate office leases and 4.4% to 5.5% for ground leases.  Since the Company’s credit backs the corporate office lease obligations and the lease terms are ten years or less, the discount rate range was estimated by using the Company’s borrowing rates for actual pricing.  The discount rate range for ground leases takes into account various factors, including the longer life of the ground leases, and was estimated by using the Company’s borrowing rates for actual pricing through 30 years and other long-term market rates.  

Corporate office leases

The Company leases nine corporate offices with remaining lease terms of one to ten years.  The Company’s corporate office leases continue to be accounted for as operating leases under the new standard.  When there is a material lease modification, the Company is required to remeasure the lease liability.

The Company leases its corporate headquarters from an entity affiliated with EQR’s Chairman of the Board of Trustees.  The lease terminates on January 31, 2022.  The amount incurred for such office space for the six months and quarter ended June 30, 2019 was approximately $1.3 million and $0.7 million, respectively.  The Company believes this amount approximates market rates for such rental space.

Ground leases

The Company maintains long-term ground leases for 14 operating properties with lease expiration dates ranging from 2042 through 2113.  The Company owns the building and improvements.  Based on its election of the package of practical expedients, the Company was not required to reassess the classification of existing ground leases and therefore these leases continue to be accounted for as operating leases.  However, in the event we materially modify existing ground leases and/or enter into new ground leases, such leases will likely be classified as finance leases.

Additional disclosures

The following table illustrates the quantitative disclosures for lessees as of and for the six months and quarter ended June 30, 2019 (amounts in thousands):

	Six Months Ended June 30, 2019		Quarter Ended June 30, 2019
Lease cost:
Operating lease cost:
Corporate office leases	$	1,818	$	900
Ground leases		11,100		5,550
Short-term lease cost:
Corporate office leases		112		56
Ground leases		—		—
Variable lease cost:
Corporate office leases		769		508
Ground leases		1,695		844
Total lease cost	$	15,494	$	7,858

The following table illustrates the quantitative disclosures for lessees as of and for the six months ended June 30, 2019 (amounts in thousands):

	June 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases:
Corporate office leases	$	2,776
Ground leases	$	8,635
ROU assets obtained in exchange for new operating lease liabilities:
Corporate office leases	$	16,687
Ground leases	$	422,018
Weighted-average remaining lease term – operating leases:
Corporate office leases	6.4 years
Ground leases	56.6 years
Weighted-average discount rate – operating leases:
Corporate office leases		3.7	%
Ground leases		5.0	%

The following table summarizes the Company’s undiscounted cash flows for contractual obligations for minimum rent payments/receipts under operating leases for the next five years and thereafter as of June 30, 2019:

(Payments)/Receipts Due by Year (in thousands)
	Remaining 2019			2020			2021			2022			2023			2024			Thereafter			Total
Operating Leases:
Minimum Rent Payments (a)	$	(8,339	)	$	(17,208	)	$	(17,148	)	$	(14,993	)	$	(14,843	)	$	(15,101	)	$	(938,561	)	$	(1,026,193	)
Minimum Rent Receipts (b)	$	31,779		$	61,674		$	57,935		$	54,099		$	46,417		$	39,356		$	139,599		$	430,859

(a) Minimum basic rent due for corporate office leases and base rent due on ground leases where the Company is the lessee.

(b) Minimum basic rent receipts due for various retail space where the Company is the lessor.  Excludes residential leases due to their short-term nature.

The following table provides a reconciliation of lease liabilities from our undiscounted cash flows for minimum rent payments for the six months ended June 30, 2019 (amounts in thousands):

	2019
Total minimum rent payments	$	1,026,193
Less: Lease discount		744,573
Lease liabilities	$	281,620

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Debt

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Debt

9. 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.  Weighted average interest rates noted below for the six months ended June 30, 2019 include the effect of any derivative instruments and amortization of premiums/discounts/OCI (other comprehensive income) on debt and derivatives.  

Mortgage Notes Payable

As of June 30, 2019, the Company had outstanding mortgage debt of approximately $2.6 billion.  

During the six months ended June 30, 2019, the Company:

• Obtained $288.1 million in 3.94% fixed rate mortgage debt held in a Fannie Mae loan pool maturing on March 1, 2029;

• Obtained $7.5 million in variable rate construction mortgage debt maturing on June 25, 2022 (total commitment of $67.6 million);

• Repaid $95.5 million of tax-exempt variable rate mortgage bonds maturing in 2036; and

• Repaid $3.1 million of scheduled principal repayments on various mortgage debt.

The Company recorded $1.5 million of write-offs of unamortized deferred financing costs during the six months ended June 30, 2019 as additional interest expense related to debt extinguishment of mortgages. The Company also recorded $15.1 million of write-offs of net unamortized discounts during the six months ended June 30, 2019 as additional interest expense related to debt extinguishment of mortgages.

As of June 30, 2019, the Company had $345.0 million of secured debt (primarily tax-exempt bonds) subject to third party credit enhancement.

As of June 30, 2019, scheduled maturities for the Company’s outstanding mortgage indebtedness were at various dates through May 28, 2061.  At June 30, 2019, the interest rate range on the Company’s mortgage debt was 0.10% to 5.78%.  During the six months ended June 30, 2019, the weighted average interest rate on the Company’s mortgage debt was 4.01%.

Notes

As of June 30, 2019, the Company had outstanding unsecured notes of approximately $6.5 billion.

During the six months ended June 30, 2019, the Company issued $600.0 million of ten-year 3.00% unsecured notes, receiving net proceeds of approximately $597.5 million before underwriting fees, hedge termination costs and other expenses, at an all-in effective interest rate of approximately 3.85%.

As of June 30, 2019, scheduled maturities for the Company’s outstanding notes were at various dates through August 1, 2047.  At June 30, 2019, the interest rate range on the Company’s notes before the effect of certain fair value hedges was 2.375% to 7.57%.  During the six months ended June 30, 2019, the weighted average interest rate on the Company’s notes was 4.30%.

The Company’s unsecured public debt contains certain financial and operating covenants including, among other things, maintenance of certain financial ratios.  The Company was in compliance with its unsecured public debt covenants for the six months ended June 30, 2019.

Line of Credit and Commercial Paper

The Company has a $2.0 billion unsecured revolving credit facility maturing January 10, 2022.  The Company has the ability to increase available borrowings by an additional $750.0 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 0.825%), or based on bids received from the lending group, and the Company pays an annual facility fee (currently 0.125%).  Both the spread and the facility fee are dependent on the Company’s senior unsecured credit rating.

The Company has an unsecured commercial paper note program in the United States.  The Company may borrow up to a maximum of $500.0 million under this program subject to market conditions.  The notes will be sold under customary terms in the United States commercial paper note market and will rank pari passu with all of the Company’s other unsecured senior indebtedness.  As of June 30, 2019, there was no commercial paper outstanding. The notes bear interest at various floating rates with a weighted average of 2.73% for the six months ended June 30, 2019.  The weighted average amount outstanding for the six months ended June 30, 2019 was approximately $348.8 million.

As of June 30, 2019, there were no borrowings outstanding under the revolving credit facility and $6.7 million was restricted/dedicated to support letters of credit.  In addition, the Company limits its utilization of the facility in order to maintain liquidity and to support its $500.0 million commercial paper program along with certain other obligations.  As a result, the Company had approximately $1.90 billion available under the facility at June 30, 2019. During the six months ended June 30, 2019, the weighted average interest rate on the revolving credit facility was 3.25%.

Other

In 2017, the Company executed a letter of credit facility with a third party financial institution which is not backed or collateralized by borrowings on the Company’s unsecured revolving credit facility.  As of June 30, 2019, there was $9.0 million in letters of credit outstanding on this facility.

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Derivative and Other Fair Value Instruments

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Derivative and Other Fair Value Instruments

10. 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.

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 commodity prices in the daily operations of the business.

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 applied internally by the Company that use as their inputs 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 commercial paper and line of credit, if applicable) 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 commercial paper and line of credit, if applicable) and quoted market prices for each underlying issuance in the case of the public unsecured notes.

The fair values of the Company’s financial instruments (other than mortgage notes payable, unsecured notes, commercial paper, line of credit and derivative instruments), including cash and cash equivalents and other financial instruments, approximate their carrying or contract value.  The following table provides a summary of the carrying and fair values for the Company’s mortgage notes payable and unsecured debt (including its commercial paper and line of credit, if applicable) at June 30, 2019 and December 31, 2018, respectively (amounts in thousands):

	June 30, 2019				December 31, 2018
	Carrying Value		Estimated Fair Value (Level 2)		Carrying Value		Estimated Fair Value (Level 2)
Mortgage notes payable, net	$	2,599,013	$	2,602,782	$	2,385,470	$	2,352,502
Unsecured debt, net		6,531,408		6,968,724		6,432,469		6,481,426
Total debt, net	$	9,130,421	$	9,571,506	$	8,817,939	$	8,833,928

The following table summarizes the Company’s consolidated derivative instruments at June 30, 2019 (dollar amounts are in thousands):

	Fair Value Hedges (1)
Current Notional Balance	$	450,000
Lowest Interest Rate		2.375	%
Highest Interest Rate		2.375	%
Maturity Date		2019

(1) Fair Value Hedges – Converts outstanding fixed rate unsecured notes ($450.0 million 2.375% notes due July 1, 2019) to a floating interest rate of 90-Day LIBOR plus 0.61%.

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, 2019 and December 31, 2018, respectively (amounts in thousands):

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	6/30/2019		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Supplemental Executive Retirement Plan	Other Assets	$	145,577	$	145,577	$	—	$	—
Total		$	145,577	$	145,577	$	—	$	—
Liabilities
Derivatives designated as hedging    instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Liabilities	$	24	$	—	$	24	$	—
Supplemental Executive Retirement Plan	Other Liabilities		145,577		145,577		—		—
Total		$	145,601	$	145,577	$	24	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	436,035	$	—	$	436,035	$	—

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	12/31/2018		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	$	2,000	$	—	$	2,000	$	—
Supplemental Executive Retirement Plan	Other Assets		134,088		134,088		—		—
Total		$	136,088	$	134,088	$	2,000	$	—
Liabilities
Derivatives designated as hedging    instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Liabilities	$	2,277	$	—	$	2,277	$	—
Forward Starting Swaps	Other Liabilities		9,851		—		9,851		—
Supplemental Executive Retirement Plan	Other Liabilities		134,088		134,088		—		—
Total		$	146,216	$	134,088	$	12,128	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	379,106	$	—	$	379,106	$	—

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, 2019 and 2018, respectively (amounts in thousands):

June 30, 2019 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	$	2,253	Fixed rate debt	Interest expense	$	(2,253	)
Total		$	2,253			$	(2,253	)

June 30, 2018 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	$	(2,151	)	Fixed rate debt	Interest expense	$	2,151
Total		$	(2,151	)			$	2,151

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, 2019 and 2018, respectively (amounts in thousands):

	Effective Portion
June 30, 2019 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
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	$	(33,765	)	Interest expense	$	(8,902	)
Total	$	(33,765	)		$	(8,902	)

	Effective Portion						Ineffective Portion
June 30, 2018 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	$	11,995	Interest expense	$	(9,307	)	N/A	$	—
Total	$	11,995		$	(9,307	)		$	—

As of June 30, 2019 and December 31, 2018, there were approximately $89.8 million and $65.0 million in deferred losses, net, included in accumulated other comprehensive income (loss), respectively, related to derivative instruments.  Based on the estimated fair values of the net derivative instruments at June 30, 2019, the Company may recognize an estimated $25.7 million of accumulated other comprehensive income (loss) as additional interest expense during the twelve months ending June 30, 2020.

In June 2019, the Company paid approximately $41.8 million to settle ten forward starting swaps in conjunction with the issuance of $600.0 million of ten-year unsecured public notes.  The accrued interest of approximately $0.2 million was recorded as an increase to interest expense. The remaining $41.6 million will be deferred as a component of accumulated other comprehensive income (loss) and will be recognized as an increase to interest expense over the first nine years and eleven months of the notes.

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Earnings Per Share and Earnings Per Unit

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Earnings Per Share And Earnings Per Unit

11. Earnings 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,
	2019			2018			2019			2018
Numerator for net income per share – basic:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Allocation to Noncontrolling Interests – Operating    Partnership		(15,429	)		(12,358	)		(11,510	)		(4,299	)
Net (income) loss attributable to Noncontrolling    Interests – Partially Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Preferred distributions		(1,545	)		(1,545	)		(772	)		(772	)
Numerator for net income per share – basic	$	411,962		$	323,866		$	308,196		$	112,830
Numerator for net income per share – diluted:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Net (income) loss attributable to Noncontrolling    Interests – Partially Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Preferred distributions		(1,545	)		(1,545	)		(772	)		(772	)
Numerator for net income per share – diluted	$	427,391		$	336,224		$	319,706		$	117,129
Denominator for net income per share – basic and diluted:
Denominator for net income per share – basic		369,952			367,865			370,342			367,930
Effect of dilutive securities:
OP Units		12,902			12,864			12,885			12,865
Long-term compensation shares/units		2,790			2,495			2,880			2,628
Denominator for net income per share – diluted		385,644			383,224			386,107			383,423
Net income per share – basic	$	1.11		$	0.88		$	0.83		$	0.31
Net income per share – diluted	$	1.11		$	0.88		$	0.83		$	0.31

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,
	2019			2018			2019			2018
Numerator for net income per Unit – basic and diluted:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Net (income) loss attributable to Noncontrolling Interests – Partially    Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Allocation to Preference Units		(1,545	)		(1,545	)		(772	)		(772	)
Numerator for net income per Unit – basic and diluted	$	427,391		$	336,224		$	319,706		$	117,129
Denominator for net income per Unit – basic and diluted:
Denominator for net income per Unit – basic		382,854			380,729			383,227			380,795
Effect of dilutive securities:
Dilution for Units issuable upon assumed exercise/vesting    of the Company’s long-term compensation shares/units		2,790			2,495			2,880			2,628
Denominator for net income per Unit – diluted		385,644			383,224			386,107			383,423
Net income per Unit – basic	$	1.11		$	0.88		$	0.83		$	0.31
Net income per Unit – diluted	$	1.11		$	0.88		$	0.83		$	0.31

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2019

Commitments And Contingencies Disclosure [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 does not believe there is any 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, 2019, the Company has three wholly owned projects totaling 691 apartment units in various stages of development with remaining commitments to fund of approximately $354.7 million and estimated completion dates ranging through September 30, 2021, as well as other completed development projects that are in various stages of lease-up or are stabilized.

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Reportable Segments

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Reportable Segments

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 geographic same store operating segments located in urban and high-density suburban markets represent its reportable segments (the recently acquired Denver properties owned by the Company are currently included in non-same store).  The Company’s operating segments located in its other markets (Phoenix) that are not material have also been included in the tables presented below.  

The Company’s fee and asset management and development 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, 2019 and 2018, 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 and 2) real estate taxes and insurance 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 properties.  Revenues for all leases are reflected on a straight-line basis in accordance with GAAP for the current and comparable periods.

The following table presents a reconciliation of NOI from our rental real estate for the six months and quarters ended June 30, 2019 and 2018, respectively (amounts in thousands):

	Six Months Ended June 30,						Quarter Ended June 30,
	2019			2018			2019			2018
Rental income	$	1,331,676		$	1,272,451		$	669,374		$	639,620
Property and maintenance expense		(223,531	)		(211,946	)		(108,461	)		(103,744	)
Real estate taxes and insurance expense		(182,888	)		(181,396	)		(91,446	)		(89,482	)
Total operating expenses		(406,419	)		(393,342	)		(199,907	)		(193,226	)
Net operating income	$	925,257		$	879,109		$	469,467		$	446,394

The following tables present NOI for each segment from our rental real estate for the six months and quarters ended June 30, 2019 and 2018, respectively, as well as total assets and capital expenditures at June 30, 2019 (amounts in thousands):

	Six Months Ended June 30, 2019						Six Months Ended June 30, 2018
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Los Angeles	$	232,546	$	68,259	$	164,287	$	222,227	$	63,887	$	158,340
Orange County		51,886		12,201		39,685		49,996		12,231		37,765
San Diego		47,023		12,084		34,939		45,425		11,754		33,671
Subtotal - Southern California		331,455		92,544		238,911		317,648		87,872		229,776
San Francisco		245,103		59,735		185,368		235,767		58,001		177,766
Washington D.C.		223,479		68,742		154,737		218,624		67,463		151,161
New York		225,942		94,472		131,470		220,456		88,496		131,960
Boston		112,127		31,075		81,052		108,348		30,152		78,196
Seattle		101,931		27,512		74,419		99,485		28,084		71,401
Other Markets		1,040		377		663		968		339		629
Total same store		1,241,077		374,457		866,620		1,201,296		360,407		840,889
Non-same store/other (2) (3)
Non-same store		81,933		26,738		55,195		40,438		15,393		25,045
Other (3)		8,666		5,224		3,442		30,717		17,542		13,175
Total non-same store/other		90,599		31,962		58,637		71,155		32,935		38,220
Totals	$	1,331,676	$	406,419	$	925,257	$	1,272,451	$	393,342	$	879,109

(1) For the six months ended June 30, 2019 and 2018, same store primarily includes all properties acquired or completed that were stabilized prior to January 1, 2018, less properties subsequently sold, which represented 73,609 apartment units.

(2) For the six months ended June 30, 2019 and 2018, non-same store primarily includes properties acquired after January 1, 2018, plus any properties in lease-up and not stabilized as of January 1, 2018.

(3) Other includes development, other corporate operations and operations prior to disposition for properties sold.

	Quarter Ended June 30, 2019						Quarter Ended June 30, 2018
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Los Angeles	$	117,147	$	33,776	$	83,371	$	111,230	$	31,845	$	79,385
Orange County		26,058		5,996		20,062		25,193		6,140		19,053
San Diego		23,720		5,958		17,762		22,932		5,790		17,142
Subtotal - Southern California		166,925		45,730		121,195		159,355		43,775		115,580
San Francisco		123,341		29,317		94,024		118,416		28,591		89,825
Washington D.C.		112,694		34,066		78,628		110,096		33,553		76,543
New York		113,579		46,304		67,275		110,691		43,683		67,008
Boston		58,224		15,859		42,365		56,379		15,475		40,904
Seattle		55,288		15,053		40,235		53,854		15,236		38,618
Other Markets		518		192		326		481		175		306
Total same store		630,569		186,521		444,048		609,272		180,488		428,784
Non-same store/other (2) (3)
Non-same store		36,712		11,676		25,036		17,393		6,465		10,928
Other (3)		2,093		1,710		383		12,955		6,273		6,682
Total non-same store/other		38,805		13,386		25,419		30,348		12,738		17,610
Totals	$	669,374	$	199,907	$	469,467	$	639,620	$	193,226	$	446,394

(1) For the quarters ended June 30, 2019 and 2018, same store primarily includes all properties acquired or completed that were stabilized prior to April 1, 2018, less properties subsequently sold, which represented 74,236 apartment units.

(2) For the quarters ended June 30, 2019 and 2018, non-same store primarily includes properties acquired after April 1, 2018, plus any properties in lease-up and not stabilized as of April 1, 2018.

(3) Other includes development, other corporate operations and operations prior to disposition for properties sold.

	Six Months Ended June 30, 2019
	Total Assets		Capital Expenditures
Same store (1)
Los Angeles	$	3,027,063	$	15,775
Orange County		412,837		4,812
San Diego		398,072		1,749
Subtotal - Southern California		3,837,972		22,336
San Francisco		3,375,932		14,222
Washington D.C.		3,716,255		9,007
New York		3,917,085		10,679
Boston		1,490,866		11,924
Seattle		1,313,159		7,973
Other Markets		12,887		126
Total same store		17,664,156		76,267
Non-same store/other (2) (3)
Non-same store		2,548,854		4,961
Other (3)		777,701		300
Total non-same store/other		3,326,555		5,261
Totals	$	20,990,711	$	81,528

(1) Same store primarily includes all properties acquired or completed that were stabilized prior to January 1, 2018, less properties subsequently sold, which represented 73,609 apartment units.

(2) Non-same store primarily includes properties acquired after January 1, 2018, plus any properties in lease-up and not stabilized as of January 1, 2018.

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

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Subsequent Events

6 Months Ended

Jun. 30, 2019

Subsequent Events [Abstract]

Subsequent Events

14. Subsequent Events

Subsequent to June 30, 2019, the Company:

• Acquired two properties consisting of 549 apartment units for $192.9 million;

• Sold one property consisting of 298 apartment units for $117.0 million;

• Acquired one land parcel for $3.6 million and sold one land parcel for $1.9 million;

• Repaid $84.5 million of 4.79% mortgage debt prior to the April 1, 2053 maturity date and incurred a prepayment penalty of $3.4 million;

• Repaid $500.0 million of 5.78% mortgage debt held in a Freddie Mac loan pool at par prior to the July 1, 2020 maturity date; and

• Repaid $450.0 million of 2.375% unsecured notes at maturity.  The fair value interest rate swaps matured in conjunction with the maturity of the notes that converted the fixed rate of 2.375% to a floating interest rate of 90-Day LIBOR plus 0.61%.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2019

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, 2019  are not necessarily indicative of the results that may be expected for the year ending December 31, 2019.

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, 2018 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, 2018.

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 may incur both federal and state income taxes on any taxable income of such entities after consideration of any net operating losses.

In December 2017, H.R. 1, informally titled the Tax Cuts and Jobs Act (the “Tax Act”), became law. As of June 30, 2019, the Tax Act did not have a material impact on our REIT or subsidiary entities, our ability to continue to qualify as a REIT or on our results of operations.  

Recently Issued and Adopted Accounting Pronouncements

Recently Issued Accounting Pronouncements

In June 2016, the Financial Accounting Standards Board (“FASB”) issued a new standard which requires companies to adopt a new approach for estimating credit losses on certain types of financial instruments, such as trade and other receivables and loans.  The standard requires entities to estimate a lifetime expected credit loss for most financial instruments, including trade receivables. In November 2018, the FASB issued an amendment excluding operating lease receivables accounted for under the new leases standard from the scope of the new credit losses standard.  The new standard will be effective for the Company beginning on January 1, 2020, with early adoption permitted beginning January 1, 2019.  The Company is currently evaluating the impact of adopting the new standard on its consolidated results of operations and financial position.

Recently Adopted Accounting Pronouncements

In May 2014, the FASB issued a comprehensive new revenue recognition standard entitled Revenue from Contracts with Customers that superseded nearly all existing revenue recognition guidance.  The new standard specifically excludes lease revenue.  The new standard may be applied retrospectively to each prior period presented or prospectively with the cumulative effect, if any, recognized as of the date of adoption.  The Company selected the modified retrospective transition method as of the date of adoption as required effective January 1, 2018.  Approximately 94% of rental income consists of revenue from leasing arrangements, which is specifically excluded from the standard.  The Company analyzed its remaining revenue streams, inclusive of fee and asset management and gains and losses on sales, and concluded these revenue streams have the same timing and pattern of revenue recognition under the new guidance, and therefore the Company had no changes in revenue recognition with the adoption of the new standard.  As such, adoption of the standard did not result in a cumulative adjustment recognized as of January 1, 2018, and the standard did not have a material impact on the Company’s consolidated financial position, results of operations, equity/capital or cash flows.

For the remaining approximately 6% of rental income that is subject to the new revenue recognition standard, the Company’s disaggregated revenue streams are disclosed in the table included in the Company’s and the Operating Partnership’s Annual Report on Form 10-K for the year ended December 31, 2018 and are comparable with the percentage of rental income for the six months and quarter ended June 30, 2019.  These revenue streams have the same timing and pattern of revenue recognition across our reportable segments, with consistent allocations between the leasing and revenue recognition standards.  

Additionally, as part of the new revenue recognition standard, the FASB issued amendments related to partial sales of real estate.  Adoption of the new partial sales standard did not result in a change of accounting for the Company related to its disposition process.  We concluded that the Company’s typical dispositions will continue to meet the criteria for sale and associated profit recognition under both new standards.

In February 2016, the FASB issued a new leases standard which sets out principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessors and lessees).  The new standard requires the following:

• Lessors – Leases are accounted for using an approach that is substantially equivalent to existing guidance for operating,

sales-type and financing leases, but aligned with the new revenue recognition standard.  Lessors are required to allocate lease payments to separate lease and non-lease components of each lease agreement, with the non-lease components evaluated under the new revenue recognition standard.

• Lessees – Leases are accounted for using a dual approach, classifying leases as either operating or finance based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee.  This classification determines whether the lease expense is recognized on a straight-line basis over the term of the lease (for operating leases) or based on an effective interest method (for finance leases).  A lessee is also required to record a right-of-use asset and a lease liability on its balance sheet for all leases with a term of greater than 12 months regardless of their classification as operating or finance leases.  Leases with a term of 12 months or less are accounted for similar to existing guidance for operating leases.

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Business (Tables)

6 Months Ended

Jun. 30, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Ownership Breakdown

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

	Properties		Apartment Units
Wholly Owned Properties		291		75,927
Master-Leased Properties – Consolidated		1		162
Partially Owned Properties – Consolidated		17		3,535
		309		79,624

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Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2019

Summary Of Significant Accounting Policies [Abstract]

Schedule of Reclassification's to Initial Right-of-use Assets

The Company calculated the net present value of the lease liabilities on January 1, 2019 and reclassed the following amounts from other assets and other liabilities to record our initial ROU assets (amounts in thousands):

	January 1, 2019			Balance Sheet Reclass:
Initial lease liabilities	$	278,287
Reclassifications:
Prepaid ground leases		17,886		Other Assets
Ground lease intangibles – below market, net		166,230		Other Assets
Ground lease intangibles – above market, net		(2,110	)	Other Liabilities
Straight-line rent liabilities (1)		(26,092	)	Other Liabilities
Initial right-of-use assets	$	434,201

(1) Straight-line rent liabilities relate to corporate office leases and certain ground leases.

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Equity, Capital and Other Interests (Tables)

6 Months Ended

Jun. 30, 2019

Class Of Stock [Line Items]

Changes in Issued and Outstanding Common Shares and Units

The following tables present the changes in the Company’s issued and outstanding Common Shares and “Units” (which includes OP Units and restricted units) for the six months ended June 30, 2019 and 2018:

	2019			2018
Common Shares
Common Shares outstanding at January 1,		369,405,161			368,018,082
Common Shares Issued:
Conversion of OP Units		188,406			11,494
Exercise of share options		1,059,674			80,875
Employee Share Purchase Plan (ESPP)		27,131			44,858
Restricted share grants, net		158,438			123,027
Common Shares outstanding at June 30,		370,838,810			368,278,336
Units
Units outstanding at January 1,		13,904,035			13,768,438
Restricted unit grants, net		140,055			267,074
Conversion of OP Units to Common Shares		(188,406	)		(11,494	)
Units outstanding at June 30,		13,855,684			14,024,018
Total Common Shares and Units outstanding at    June 30,		384,694,494			382,302,354
Units Ownership Interest in Operating Partnership		3.6	%		3.7	%

Changes in Redemption Value of Redeemable Noncontrolling Interests and Limited Partners Interest

The following table presents the changes in the redemption value of the Redeemable Noncontrolling Interests – Operating Partnership for the six months ended June 30, 2019 and 2018 (amounts in thousands):

	2019			2018
Balance at January 1,	$	379,106		$	366,955
Change in market value		56,974			172
Change in carrying value		(45	)		(644	)
Balance at June 30,	$	436,035		$	366,483

Issued and Outstanding Preferred Shares and Preference Units

The following table presents the Company’s issued and outstanding Preferred Shares as of June 30, 2019 and December 31, 2018:

				Amounts in thousands
		Annual
	Call	Dividend Per		June 30,		December 31,
	Date (1)	Share (2)		2019		2018
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; 745,600 shares issued and    outstanding as of June 30, 2019 and December 31, 2018	12/10/26	$	4.145	$	37,280	$	37,280
				$	37,280	$	37,280

(1) On or after the call 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.

ERPOP [Member]

Class Of Stock [Line Items]

Changes in Issued and Outstanding Common Shares and Units

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, 2019 and 2018:

	2019			2018
General and Limited Partner Units
General and Limited Partner Units outstanding at January 1,		383,309,196			381,786,520
Issued to General Partner:
Exercise of EQR share options		1,059,674			80,875
EQR’s Employee Share Purchase Plan (ESPP)		27,131			44,858
EQR’s restricted share grants, net		158,438			123,027
Issued to Limited Partners:
Restricted unit grants, net		140,055			267,074
General and Limited Partner Units outstanding at    June 30,		384,694,494			382,302,354
Limited Partner Units
Limited Partner Units outstanding at January 1,		13,904,035			13,768,438
Limited Partner restricted unit grants, net		140,055			267,074
Conversion of Limited Partner OP Units to EQR Common    Shares		(188,406	)		(11,494	)
Limited Partner Units outstanding at June 30,		13,855,684			14,024,018
Limited Partner Units Ownership Interest in Operating    Partnership		3.6	%		3.7	%

Changes in Redemption Value of Redeemable Noncontrolling Interests and Limited Partners Interest

The following table presents the changes in the redemption value of the Redeemable Limited Partners for the six months ended June 30, 2019 and 2018 (amounts in thousands):

	2019			2018
Balance at January 1,	$	379,106		$	366,955
Change in market value		56,974			172
Change in carrying value		(45	)		(644	)
Balance at June 30,	$	436,035		$	366,483

Issued and Outstanding Preferred Shares and Preference Units

The following table presents the Operating Partnership’s issued and outstanding “Preference Units” as of June 30, 2019 and December 31, 2018:

				Amounts in thousands
		Annual
	Call	Dividend Per		June 30,		December 31,
	Date (1)	Unit (2)		2019		2018
Preference Units:
8.29% Series K Cumulative Redeemable Preference Units;    liquidation value $50 per unit; 745,600 units issued and    outstanding as of June 30, 2019 and December 31, 2018	12/10/26	$	4.145	$	37,280	$	37,280
				$	37,280	$	37,280

(1) On or after the call 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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Real Estate (Tables)

6 Months Ended

Jun. 30, 2019

Real Estate [Abstract]

Summary of Carrying Amounts of Investment in Real Estate

The following table summarizes the carrying amounts for the Company’s investment in real estate (at cost) as of June 30, 2019 and December 31, 2018 (amounts in thousands):

	June 30, 2019			December 31, 2018
Land	$	5,889,308		$	5,875,803
Depreciable property:
Buildings and improvements		18,529,097			18,232,625
Furniture, fixtures and equipment		1,813,243			1,722,231
In-Place lease intangibles		481,713			481,045
Projects under development:
Land		25,429			25,429
Construction-in-progress		146,440			83,980
Land held for development:
Land		74,187			61,038
Construction-in-progress		36,358			28,871
Investment in real estate		26,995,775			26,511,022
Accumulated depreciation		(7,026,622	)		(6,696,281	)
Investment in real estate, net	$	19,969,153		$	19,814,741

Acquired Properties From Unaffiliated Parties

During the six months ended June 30, 2019, the Company acquired the following from unaffiliated parties (purchase price in thousands):

	Properties		Apartment Units		Purchase Price
Rental Properties – Consolidated (1)		6		1,644	$	634,650
Land Parcels (one) (2)		—		—		16,232
Total		6		1,644	$	650,882

(1) Purchase price includes an allocation of approximately $88.1 million to land and $548.5 million to depreciable property (inclusive of capitalized closing costs).

(2) Purchase price includes an allocation of approximately $13.1 million to vacant land and $3.4 million to construction-in-progress (inclusive of capitalized closing costs).  See Note 6 for additional discussion.

Disposed Properties to Unaffiliated Parties

During the six months ended June 30, 2019, the Company disposed of the following to unaffiliated parties (sales price in thousands):

	Properties		Apartment Units		Sales Price
Rental Properties – Consolidated		2		561	$	402,750
Rental Properties – Unconsolidated (1)		2		945		394,500
Total		4		1,506	$	797,250

(1) The Company owned a 20% interest in both unconsolidated rental properties. Sales price listed is the gross sales price. The Company received net sales proceeds of approximately $78.3 million.

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Commitments to Acquire/Dispose of Real Estate (Tables)

6 Months Ended

Jun. 30, 2019

Commitments To Acquire Dispose Of Real Estate [Abstract]

Agreement to Acquire

The Company has entered into an agreement to acquire the following (purchase price in thousands):

	Properties		Apartment Units		Purchase Price
Rental Properties – Consolidated		1		398	$	189,000
Total		1		398	$	189,000

Separate Agreements to Dispose

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

	Properties		Apartment Units		Sales Price
Rental Properties – Consolidated		7		940	$	336,925
Land Parcels (one)		—		—		4,150
Total		7		940	$	341,075

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Investments in Partially Owned Entities (Tables)

6 Months Ended

Jun. 30, 2019

Investments In Partially Owned Entities [Abstract]

Summary of Companys Investment in Unconsolidated Entities

The following table and information summarizes the Company’s investments in unconsolidated entities, which are accounted for under the equity method of accounting as the requirements for consolidation are not met, as of June 30, 2019 and December 31, 2018 (amounts in thousands except for ownership percentage):

	June 30, 2019		December 31, 2018		Ownership Percentage
Investments in Unconsolidated Entities:
Wisconsin Place Developer (VIE) (1)	$	41,383	$	42,365	33.3%
Operating Properties (Non-VIE) (2)		—		10,494	20.0%
Other		11,524		5,490	Varies
Investments in Unconsolidated Entities	$	52,907	$	58,349

(1) Represents an unconsolidated interest in an entity that owns the land underlying one of the consolidated joint venture properties noted above and owns and operates a related parking facility.  The joint venture, as a limited partner, does not have substantive kick-out or participating rights in the entity.  As a result, the entity qualifies as a VIE.  The joint venture does not have a controlling financial interest in the VIE and is

not the VIE’s primary beneficiary.  The joint venture does not have the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance or the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.  As a result, the entity that owns the land and owns and operates the parking facility is unconsolidated and recorded using the equity method of accounting.

(2) Includes two joint ventures under separate agreements with the same partner totaling 945 apartment units as of December 31, 2018.  During the six months ended June 30, 2019, the Company and its joint venture partner sold both properties under separate agreements to unaffiliated parties.  See Note 4 for additional discussion.

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Restricted Deposits (Tables)

6 Months Ended

Jun. 30, 2019

Deposits Restricted [Abstract]

Restricted Deposits

The following table presents the Company’s restricted deposits as of June 30, 2019 and December 31, 2018 (amounts in thousands):

	June 30, 2019		December 31, 2018
Mortgage escrow deposits:
Real estate taxes and insurance	$	1,181	$	876
Replacement reserves		8,599		8,641
Mortgage principal reserves/sinking funds		7,898		9,754
Other		852		852
Mortgage escrow deposits		18,530		20,123
Restricted cash:
Earnest money on pending acquisitions		1,000		5,000
Restricted deposits on real estate investments		1,493		540
Resident security and utility deposits		36,192		35,659
Other		980		7,549
Restricted cash		39,665		48,748
Restricted deposits	$	58,195	$	68,871

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Leases (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Summary of Lease Income Types Relating to Lease Payments

The following table presents the lease income types relating to lease payments for residential and retail leases for the six months and quarter ended June 30, 2019 (amounts in thousands):

	Six Months Ended June 30, 2019						Quarter Ended June 30, 2019
Lease Income Type	Residential Leases		Retail Leases		Total		Residential Leases		Retail Leases			Total
Residential and retail rent	$	1,190,729	$	36,163	$	1,226,892	$	598,209	$	17,693		$	615,902
Parking rent		18,469		159		18,628		9,332		87			9,419
Storage rent		1,856		31		1,887		937		(13	)		924
Pet rent		5,798		—		5,798		2,911		—			2,911
Total lease revenue (1)	$	1,216,852	$	36,353	$	1,253,205	$	611,389	$	17,767		$	629,156

(1) Excludes other rental income of $78.5 million for the six months ended June 30, 2019 and $40.2 million for the quarter ended June 30, 2019, which is accounted for under the revenue recognition standard.

Summary of Right-of-Use Assets and Related Lease Liabilities

The following table presents the Company’s ROU assets and related lease liabilities as of June 30, 2019 (amounts in thousands):

	2019
Right-of-use assets:
Corporate office leases (1)	$	15,381
Ground leases		416,372
Right-of-use assets	$	431,753
Lease liabilities:
Corporate office leases (1)	$	16,879
Ground leases		264,741
Lease liabilities	$	281,620

(1) The Company has two corporate office leases that are considered short-term and therefore, there is no balance sheet impact and both leases continue to be expensed on a straight-line basis throughout the year.

Summary of Quantitative Disclosures for Lessees

The following table illustrates the quantitative disclosures for lessees as of and for the six months and quarter ended June 30, 2019 (amounts in thousands):

	Six Months Ended June 30, 2019		Quarter Ended June 30, 2019
Lease cost:
Operating lease cost:
Corporate office leases	$	1,818	$	900
Ground leases		11,100		5,550
Short-term lease cost:
Corporate office leases		112		56
Ground leases		—		—
Variable lease cost:
Corporate office leases		769		508
Ground leases		1,695		844
Total lease cost	$	15,494	$	7,858

Summary of Quantitative Disclosures for Lessees Operating Lease Liabilities

The following table illustrates the quantitative disclosures for lessees as of and for the six months ended June 30, 2019 (amounts in thousands):

	June 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases:
Corporate office leases	$	2,776
Ground leases	$	8,635
ROU assets obtained in exchange for new operating lease liabilities:
Corporate office leases	$	16,687
Ground leases	$	422,018
Weighted-average remaining lease term – operating leases:
Corporate office leases	6.4 years
Ground leases	56.6 years
Weighted-average discount rate – operating leases:
Corporate office leases		3.7	%
Ground leases		5.0	%

Summary of Undiscounted Cash Flows for Contractual Obligations for Minimum Rent Payments/Receipts

The following table summarizes the Company’s undiscounted cash flows for contractual obligations for minimum rent payments/receipts under operating leases for the next five years and thereafter as of June 30, 2019:

(Payments)/Receipts Due by Year (in thousands)
	Remaining 2019			2020			2021			2022			2023			2024			Thereafter			Total
Operating Leases:
Minimum Rent Payments (a)	$	(8,339	)	$	(17,208	)	$	(17,148	)	$	(14,993	)	$	(14,843	)	$	(15,101	)	$	(938,561	)	$	(1,026,193	)
Minimum Rent Receipts (b)	$	31,779		$	61,674		$	57,935		$	54,099		$	46,417		$	39,356		$	139,599		$	430,859

(a) Minimum basic rent due for corporate office leases and base rent due on ground leases where the Company is the lessee.

(b) Minimum basic rent receipts due for various retail space where the Company is the lessor.  Excludes residential leases due to their short-term nature.

Summary of Reconciliation of Lease Liabilities

The following table provides a reconciliation of lease liabilities from our undiscounted cash flows for minimum rent payments for the six months ended June 30, 2019 (amounts in thousands):

	2019
Total minimum rent payments	$	1,026,193
Less: Lease discount		744,573
Lease liabilities	$	281,620

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Derivative and Other Fair Value Instruments (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Summary of Carrying and Fair Values of Financial Instruments

The following table provides a summary of the carrying and fair values for the Company’s mortgage notes payable and unsecured debt (including its commercial paper and line of credit, if applicable) at June 30, 2019 and December 31, 2018, respectively (amounts in thousands):

	June 30, 2019				December 31, 2018
	Carrying Value		Estimated Fair Value (Level 2)		Carrying Value		Estimated Fair Value (Level 2)
Mortgage notes payable, net	$	2,599,013	$	2,602,782	$	2,385,470	$	2,352,502
Unsecured debt, net		6,531,408		6,968,724		6,432,469		6,481,426
Total debt, net	$	9,130,421	$	9,571,506	$	8,817,939	$	8,833,928

Summary of Consolidated Derivative Instruments

The following table summarizes the Company’s consolidated derivative instruments at June 30, 2019 (dollar amounts are in thousands):

	Fair Value Hedges (1)
Current Notional Balance	$	450,000
Lowest Interest Rate		2.375	%
Highest Interest Rate		2.375	%
Maturity Date		2019

(1) Fair Value Hedges – Converts outstanding fixed rate unsecured notes ($450.0 million 2.375% notes due July 1, 2019) to a floating interest rate of 90-Day LIBOR plus 0.61%.

Summary of Fair Value Measurements for Each Major Category of Assets and Liabilities Measured at Fair Value on Recurring Basis

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, 2019 and December 31, 2018, respectively (amounts in thousands):

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	6/30/2019		Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Supplemental Executive Retirement Plan	Other Assets	$	145,577	$	145,577	$	—	$	—
Total		$	145,577	$	145,577	$	—	$	—
Liabilities
Derivatives designated as hedging    instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Liabilities	$	24	$	—	$	24	$	—
Supplemental Executive Retirement Plan	Other Liabilities		145,577		145,577		—		—
Total		$	145,601	$	145,577	$	24	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	436,035	$	—	$	436,035	$	—

				Fair Value Measurements at Reporting Date Using
Description	Balance Sheet Location	12/31/2018		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	$	2,000	$	—	$	2,000	$	—
Supplemental Executive Retirement Plan	Other Assets		134,088		134,088		—		—
Total		$	136,088	$	134,088	$	2,000	$	—
Liabilities
Derivatives designated as hedging    instruments:
Interest Rate Contracts:
Fair Value Hedges	Other Liabilities	$	2,277	$	—	$	2,277	$	—
Forward Starting Swaps	Other Liabilities		9,851		—		9,851		—
Supplemental Executive Retirement Plan	Other Liabilities		134,088		134,088		—		—
Total		$	146,216	$	134,088	$	12,128	$	—
Redeemable Noncontrolling Interests –
Operating Partnership/Redeemable
Limited Partners	Mezzanine	$	379,106	$	—	$	379,106	$	—

Summary of Effect of Fair Value Hedges on the Accompanying Consolidated Statements of Operations and Comprehensive Income

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, 2019 and 2018, respectively (amounts in thousands):

June 30, 2019 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	$	2,253	Fixed rate debt	Interest expense	$	(2,253	)
Total		$	2,253			$	(2,253	)

June 30, 2018 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	$	(2,151	)	Fixed rate debt	Interest expense	$	2,151
Total		$	(2,151	)			$	2,151

Summary of Effect of Cash Flow Hedges on the Accompanying Consolidated Statements of Operations and Comprehensive Income

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, 2019 and 2018, respectively (amounts in thousands):

	Effective Portion
June 30, 2019 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
Derivatives designated as hedging instruments:
Interest Rate Contracts:
Forward Starting Swaps	$	(33,765	)	Interest expense	$	(8,902	)
Total	$	(33,765	)		$	(8,902	)

	Effective Portion						Ineffective Portion
June 30, 2018 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	$	11,995	Interest expense	$	(9,307	)	N/A	$	—
Total	$	11,995		$	(9,307	)		$	—

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Earnings Per Share and Earnings Per Unit (Tables)

6 Months Ended

Jun. 30, 2019

Schedule of Calculation of Numerator and Denominator in Earnings Per Share and Earnings Per Unit

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,
	2019			2018			2019			2018
Numerator for net income per share – basic:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Allocation to Noncontrolling Interests – Operating    Partnership		(15,429	)		(12,358	)		(11,510	)		(4,299	)
Net (income) loss attributable to Noncontrolling    Interests – Partially Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Preferred distributions		(1,545	)		(1,545	)		(772	)		(772	)
Numerator for net income per share – basic	$	411,962		$	323,866		$	308,196		$	112,830
Numerator for net income per share – diluted:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Net (income) loss attributable to Noncontrolling    Interests – Partially Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Preferred distributions		(1,545	)		(1,545	)		(772	)		(772	)
Numerator for net income per share – diluted	$	427,391		$	336,224		$	319,706		$	117,129
Denominator for net income per share – basic and diluted:
Denominator for net income per share – basic		369,952			367,865			370,342			367,930
Effect of dilutive securities:
OP Units		12,902			12,864			12,885			12,865
Long-term compensation shares/units		2,790			2,495			2,880			2,628
Denominator for net income per share – diluted		385,644			383,224			386,107			383,423
Net income per share – basic	$	1.11		$	0.88		$	0.83		$	0.31
Net income per share – diluted	$	1.11		$	0.88		$	0.83		$	0.31

ERPOP [Member]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share and Earnings Per Unit

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,
	2019			2018			2019			2018
Numerator for net income per Unit – basic and diluted:
Net income	$	430,556		$	338,958		$	321,299		$	118,410
Net (income) loss attributable to Noncontrolling Interests – Partially    Owned Properties		(1,620	)		(1,189	)		(821	)		(509	)
Allocation to Preference Units		(1,545	)		(1,545	)		(772	)		(772	)
Numerator for net income per Unit – basic and diluted	$	427,391		$	336,224		$	319,706		$	117,129
Denominator for net income per Unit – basic and diluted:
Denominator for net income per Unit – basic		382,854			380,729			383,227			380,795
Effect of dilutive securities:
Dilution for Units issuable upon assumed exercise/vesting    of the Company’s long-term compensation shares/units		2,790			2,495			2,880			2,628
Denominator for net income per Unit – diluted		385,644			383,224			386,107			383,423
Net income per Unit – basic	$	1.11		$	0.88		$	0.83		$	0.31
Net income per Unit – diluted	$	1.11		$	0.88		$	0.83		$	0.31

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Reportable Segments (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Schedule of Reconciliation of NOI from Rental Real Estate Specific to Continuing Operations

The following table presents a reconciliation of NOI from our rental real estate for the six months and quarters ended June 30, 2019 and 2018, respectively (amounts in thousands):

	Six Months Ended June 30,						Quarter Ended June 30,
	2019			2018			2019			2018
Rental income	$	1,331,676		$	1,272,451		$	669,374		$	639,620
Property and maintenance expense		(223,531	)		(211,946	)		(108,461	)		(103,744	)
Real estate taxes and insurance expense		(182,888	)		(181,396	)		(91,446	)		(89,482	)
Total operating expenses		(406,419	)		(393,342	)		(199,907	)		(193,226	)
Net operating income	$	925,257		$	879,109		$	469,467		$	446,394

Schedule of NOI for Each Segment from Rental Real Estate Specific to Continuing Operations

The following tables present NOI for each segment from our rental real estate for the six months and quarters ended June 30, 2019 and 2018, respectively, as well as total assets and capital expenditures at June 30, 2019 (amounts in thousands):

	Six Months Ended June 30, 2019						Six Months Ended June 30, 2018
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Los Angeles	$	232,546	$	68,259	$	164,287	$	222,227	$	63,887	$	158,340
Orange County		51,886		12,201		39,685		49,996		12,231		37,765
San Diego		47,023		12,084		34,939		45,425		11,754		33,671
Subtotal - Southern California		331,455		92,544		238,911		317,648		87,872		229,776
San Francisco		245,103		59,735		185,368		235,767		58,001		177,766
Washington D.C.		223,479		68,742		154,737		218,624		67,463		151,161
New York		225,942		94,472		131,470		220,456		88,496		131,960
Boston		112,127		31,075		81,052		108,348		30,152		78,196
Seattle		101,931		27,512		74,419		99,485		28,084		71,401
Other Markets		1,040		377		663		968		339		629
Total same store		1,241,077		374,457		866,620		1,201,296		360,407		840,889
Non-same store/other (2) (3)
Non-same store		81,933		26,738		55,195		40,438		15,393		25,045
Other (3)		8,666		5,224		3,442		30,717		17,542		13,175
Total non-same store/other		90,599		31,962		58,637		71,155		32,935		38,220
Totals	$	1,331,676	$	406,419	$	925,257	$	1,272,451	$	393,342	$	879,109

(1) For the six months ended June 30, 2019 and 2018, same store primarily includes all properties acquired or completed that were stabilized prior to January 1, 2018, less properties subsequently sold, which represented 73,609 apartment units.

(2) For the six months ended June 30, 2019 and 2018, non-same store primarily includes properties acquired after January 1, 2018, plus any properties in lease-up and not stabilized as of January 1, 2018.

(3) Other includes development, other corporate operations and operations prior to disposition for properties sold.

	Quarter Ended June 30, 2019						Quarter Ended June 30, 2018
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Los Angeles	$	117,147	$	33,776	$	83,371	$	111,230	$	31,845	$	79,385
Orange County		26,058		5,996		20,062		25,193		6,140		19,053
San Diego		23,720		5,958		17,762		22,932		5,790		17,142
Subtotal - Southern California		166,925		45,730		121,195		159,355		43,775		115,580
San Francisco		123,341		29,317		94,024		118,416		28,591		89,825
Washington D.C.		112,694		34,066		78,628		110,096		33,553		76,543
New York		113,579		46,304		67,275		110,691		43,683		67,008
Boston		58,224		15,859		42,365		56,379		15,475		40,904
Seattle		55,288		15,053		40,235		53,854		15,236		38,618
Other Markets		518		192		326		481		175		306
Total same store		630,569		186,521		444,048		609,272		180,488		428,784
Non-same store/other (2) (3)
Non-same store		36,712		11,676		25,036		17,393		6,465		10,928
Other (3)		2,093		1,710		383		12,955		6,273		6,682
Total non-same store/other		38,805		13,386		25,419		30,348		12,738		17,610
Totals	$	669,374	$	199,907	$	469,467	$	639,620	$	193,226	$	446,394

(1) For the quarters ended June 30, 2019 and 2018, same store primarily includes all properties acquired or completed that were stabilized prior to April 1, 2018, less properties subsequently sold, which represented 74,236 apartment units.

(2) For the quarters ended June 30, 2019 and 2018, non-same store primarily includes properties acquired after April 1, 2018, plus any properties in lease-up and not stabilized as of April 1, 2018.

(3) Other includes development, other corporate operations and operations prior to disposition for properties sold.

	Six Months Ended June 30, 2019
	Total Assets		Capital Expenditures
Same store (1)
Los Angeles	$	3,027,063	$	15,775
Orange County		412,837		4,812
San Diego		398,072		1,749
Subtotal - Southern California		3,837,972		22,336
San Francisco		3,375,932		14,222
Washington D.C.		3,716,255		9,007
New York		3,917,085		10,679
Boston		1,490,866		11,924
Seattle		1,313,159		7,973
Other Markets		12,887		126
Total same store		17,664,156		76,267
Non-same store/other (2) (3)
Non-same store		2,548,854		4,961
Other (3)		777,701		300
Total non-same store/other		3,326,555		5,261
Totals	$	20,990,711	$	81,528

(1) Same store primarily includes all properties acquired or completed that were stabilized prior to January 1, 2018, less properties subsequently sold, which represented 73,609 apartment units.

(2) Non-same store primarily includes properties acquired after January 1, 2018, plus any properties in lease-up and not stabilized as of January 1, 2018.

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

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Business - Additional Information (Details)	Jun. 30, 2019 State Property ApartmentUnit
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of states in which entity operates | State	10
Properties | Property	309
Apartment units | ApartmentUnit	79,624
ERPOP [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Noncontrolling interest, ownership percentage by parent	96.40%

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Business - Ownership Breakdown (Details)	Jun. 30, 2019 Property ApartmentUnit
Property/Unit schedule
Properties | Property	309
Apartment Units | ApartmentUnit	79,624
Wholly Owned Properties
Property/Unit schedule
Properties | Property	291
Apartment Units | ApartmentUnit	75,927
Master-Leased Properties - Consolidated
Property/Unit schedule
Properties | Property	1
Apartment Units | ApartmentUnit	162
Partially Owned Properties - Consolidated
Property/Unit schedule
Properties | Property	17
Apartment Units | ApartmentUnit	3,535

XML

Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2019	Dec. 31, 2018
Provision for income tax	$ 246,000	$ 274,000	$ 484,000	$ 487,000
Percentage of rental income excluded from accounting standard adoption			94.00%
Percentage of total revenue subject to revenue recognition standard			6.00%
Right-of-use assets	431,753,000		$ 431,753,000		$ 434,201,000	$ 0
Lease liabilities	$ 281,620,000		281,620,000		$ 278,287,000	$ 0
Federal [Member]
Provision for income tax			$ 0

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Summary of Significant Accounting Policies - Schedule of Computation of Initial Right-of-use Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Line Items]
Lease liabilities	$ 281,620	$ 278,287	$ 0
Reclassifications:
Right-of-use assets	$ 431,753	434,201	$ 0
Other Assets [Member]
Reclassifications:
Prepaid ground leases		17,886
Ground lease intangibles – below market, net		166,230
Other Liabilities [Member]
Reclassifications:
Ground lease intangibles – above market, net		(2,110)
Straight line rent liabilities		$ (26,092)

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Equity, Capital and Other Interests - Changes in Issued and Outstanding Common Shares and Units (Details) - shares	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Equity Capital And Other Interests [Abstract]
Common Stock, Shares, Outstanding	369,405,161	368,018,082
Common Shares Issued:
Conversion of OP Units	188,406	11,494
Exercise of share options	1,059,674	80,875
Employee Share Purchase Plan (ESPP)	27,131	44,858
Restricted share grants, net	158,438	123,027
Common Stock, Shares, Outstanding	370,838,810	368,278,336
Units
Total Units Outstanding	13,904,035	13,768,438
Restricted unit grants, net	140,055	267,074
Conversion of OP Units to Common Shares	(188,406)	(11,494)
Total Units Outstanding	13,855,684	14,024,018
Common Shares And Units Outstanding	384,694,494	382,302,354
Units Ownership Interest in Operating Partnership	3.60%	3.70%

XML

Equity, Capital and Other Interests - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Class Of Stock [Line Items]
Redeemable noncontrolling interests - operating partnership	$ 436,035	$ 379,106	$ 366,483	$ 366,955
Preferred stock, shares authorized	100,000,000	100,000,000
Preferred stock, par or stated value per share	$ 0.01	$ 0.01
ERPOP [Member]
Class Of Stock [Line Items]
Redeemable Limited Partners	$ 436,035	$ 379,106	$ 366,483	$ 366,955

XML

Equity, Capital and Other Interests - Changes in Redemption Value of Redeemable Noncontrolling Interests - Operating Partnership (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Equity Capital And Other Interests [Abstract]
Redeemable Noncontrolling Interests - Operating Partnership	$ 379,106	$ 366,955
Change in market value of Redeemable Noncontrolling Interests – Operating Partnership	56,974	172
Change in carrying value of Redeemable Noncontrolling Interests - Operating Partnership	(45)	(644)
Redeemable Noncontrolling Interests - Operating Partnership	$ 436,035	$ 366,483

XML

Equity, Capital and Other Interests - Issued and Outstanding Preferred Shares and Preference Units (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Class Of Stock [Line Items]
8.29% Series K Cumulative Redeemable Preferred; liquidation value $50 per share; 745,600 shares issued and outstanding as of June 30, 2019 and December 31, 2018	$ 37,280	$ 37,280
ERPOP [Member]
Class Of Stock [Line Items]
8.29% Series K Cumulative Redeemable Preferred; liquidation value $50 per share; 745,600 shares issued and outstanding as of June 30, 2019 and December 31, 2018	$ 37,280	37,280
Preferred Stock
Class Of Stock [Line Items]
Preferred Stocks Preference Units Call Date	Dec. 10, 2026
Annual Dividend Per Preferred Share Preference Unit	$ 4.145
8.29% Series K Cumulative Redeemable Preferred; liquidation value $50 per share; 745,600 shares issued and outstanding as of June 30, 2019 and December 31, 2018	$ 37,280	37,280
Preferred Stock | ERPOP [Member]
Class Of Stock [Line Items]
Preferred Stocks Preference Units Call Date	Dec. 10, 2026
Annual Dividend Per Preferred Share Preference Unit	$ 4.145
8.29% Series K Cumulative Redeemable Preferred; liquidation value $50 per share; 745,600 shares issued and outstanding as of June 30, 2019 and December 31, 2018	$ 37,280	$ 37,280

XML

Equity, Capital and Other Interests - Issued and Outstanding Preferred Shares and Preference Units (Parenthetical) (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Class Of Stock [Line Items]
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	100,000,000	100,000,000
Preferred Stock
Class Of Stock [Line Items]
Preferred Stock Preference Units Issued	745,600	745,600
Preferred Stock Preference Units Outstanding	745,600	745,600
Preferred Stock Preference Units Redemption Price Per Share	$ 50	$ 50
Preferred Stock Preference Units Dividend Rate Percentage	8.29%	8.29%
Preferred Stock | ERPOP [Member]
Class Of Stock [Line Items]
Preferred Stock Preference Units Issued	745,600	745,600
Preferred Stock Preference Units Outstanding	745,600	745,600
Preferred Stock Preference Units Redemption Price Per Share	$ 50	$ 50
Preferred Stock Preference Units Dividend Rate Percentage	8.29%	8.29%

XML

Equity, Capital and Other Interests - Changes in Operating Partnership's Issued and Outstanding Units (Details) - shares	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
General and Limited Partner Units
Exercise of share options	1,059,674	80,875
Employee Share Purchase Plan (ESPP)	27,131	44,858
Restricted share grants, net	158,438	123,027
Restricted unit grants, net	140,055	267,074
Common Shares And Units Outstanding	384,694,494	382,302,354
LIMITED PARTNERS
Total Units Outstanding	13,904,035	13,768,438
Restricted unit grants, net	140,055	267,074
Conversion of Limited Partner OP Units to EQR Common Shares	(188,406)	(11,494)
Total Units Outstanding	13,855,684	14,024,018
Units Ownership Interest in Operating Partnership	3.60%	3.70%
ERPOP [Member]
General and Limited Partner Units
Common Shares And Units Outstanding	383,309,196	381,786,520
Exercise of share options	1,059,674	80,875
Employee Share Purchase Plan (ESPP)	27,131	44,858
Restricted share grants, net	158,438	123,027
Restricted unit grants, net	140,055	267,074
Common Shares And Units Outstanding	384,694,494	382,302,354
LIMITED PARTNERS
Total Units Outstanding	13,904,035	13,768,438
Restricted unit grants, net	140,055	267,074
Conversion of Limited Partner OP Units to EQR Common Shares	(188,406)	(11,494)
Total Units Outstanding	13,855,684	14,024,018
Units Ownership Interest in Operating Partnership	3.60%	3.70%

XML

Equity, Capital and Other Interests - Changes in Redemption Value of Redeemable Limited Partners Interest (Details) - ERPOP [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Redeemable Limited Partners	$ 379,106	$ 366,955
Limited Partners Change In Redemption Value	56,974	172
Limited Partners Change In Carrying Value	(45)	(644)
Redeemable Limited Partners	$ 436,035	$ 366,483

XML

Equity, Capital and Other Interests - Other - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019 shares
Equity Capital And Other Interests [Abstract]
Additional common shares authorized	13,000,000.0
Stock repurchase program, number of shares authorized to be repurchased	13,000,000.0
Stock open market repurchased and retired during period, shares	0
Stock repurchase program, remaining number of shares authorized to be repurchased	13,000,000.0

XML

Real Estate - Summary of Carrying Amounts of Investment in Real Estate (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Land	$ 5,889,308	$ 5,875,803
Depreciable property:
Buildings and improvements	18,529,097	18,232,625
Furniture, fixtures and equipment	1,813,243	1,722,231
In-Place lease intangibles	481,713	481,045
Projects under development:
Construction-in-progress	171,869	109,409
Land held for development:
Land	110,545	89,909
Construction-in-progress	171,869	109,409
Investment in real estate	26,995,775	26,511,022
Accumulated depreciation	(7,026,622)	(6,696,281)
Investment in real estate, net	19,969,153	19,814,741
Projects under development [Member]
Projects under development:
Land	25,429	25,429
Construction-in-progress	146,440	83,980
Land held for development:
Construction-in-progress	146,440	83,980
Land held for development [Member]
Projects under development:
Construction-in-progress	36,358	28,871
Land held for development:
Land	74,187	61,038
Construction-in-progress	$ 36,358	$ 28,871

XML

Real Estate - Acquired Properties From Unaffiliated Parties (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($) Property ApartmentUnit
Properties acquired | Property	6
Property Units acquired | ApartmentUnit	1,644
Purchase Price	$ 650,882
Rental Properties - Consolidated [Member]
Properties acquired | Property	6
Property Units acquired | ApartmentUnit	1,644
Purchase Price	$ 634,650
Land Parcels [Member]
Purchase Price	$ 16,232

XML

Real Estate - Acquired Properties From Unaffiliated Parties (Parenthetical) (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Purchase Price	$ 650,882
Land [Member]
Purchase Price	88,100
Depreciable Property [Member]
Purchase Price	548,500
Vacant Land [Member]
Purchase Price	13,100
Construction in Progress [Member]
Purchase Price	$ 3,400

XML

Real Estate - Disposed Properties to Unaffiliated Parties (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($) Property ApartmentUnit
Properties disposed | Property	4
Property Units disposed | ApartmentUnit	1,506
Sales Price | $	$ 797,250
Rental Properties - Consolidated [Member]
Properties disposed | Property	2
Property Units disposed | ApartmentUnit	561
Sales Price | $	$ 402,750
Rental Properties - Unconsolidated [Member]
Properties disposed | Property	2
Property Units disposed | ApartmentUnit	945
Sales Price | $	$ 394,500

XML

Real Estate - Disposed Properties to Unaffiliated Parties (Parenthetical) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Net sales proceeds of unconsolidated rental properties	$ 393,439	$ 287,173
Rental Properties - Unconsolidated [Member]
Ownership percentage	20.00%
Net sales proceeds of unconsolidated rental properties	$ 78,300

XML

Real Estate - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Real Estate [Abstract]
Net gain on sales of real estate properties	$ 138,856	$ (51)	$ 138,835	$ 142,162
Net gain on sales of unconsolidated entities			$ 69,500

XML

Commitments to Acquire/Dispose of Real Estate - Agreement to Acquire (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($) Property ApartmentUnit
Property/Unit schedule
Properties | Property	1
Apartment Units | ApartmentUnit	398
Purchase Price | $	$ 189,000
Rental Properties Acquire [Member] | Consolidated [Member]
Property/Unit schedule
Properties | Property	1
Apartment Units | ApartmentUnit	398
Purchase Price | $	$ 189,000

XML

Commitments to Acquire/Dispose of Real Estate - Separate Agreements to Dispose (Details) $ in Thousands	Jun. 30, 2019 USD ($) Property ApartmentUnit
Property/Unit schedule
Properties | Property	7
Apartment Units | ApartmentUnit	940
Sales Price	$ 341,075
Rental Properties Disposed [Member] | Consolidated [Member]
Property/Unit schedule
Properties | Property	7
Apartment Units | ApartmentUnit	940
Sales Price	$ 336,925
Land [Member]
Property/Unit schedule
Sales Price	$ 4,150

XML

Investments in Partially Owned Entities - Consolidated Variable Interest Entities ("VIEs") - Additional Information (Details) $ in Thousands	Jun. 30, 2019 USD ($) Property ApartmentUnit	Dec. 31, 2018 USD ($)
Variable Interest Entity [Line Items]
Properties | Property	309
Apartment units | ApartmentUnit	79,624
Total assets	$ 20,990,711	$ 20,394,209
Total liabilities	$ 10,175,125	9,615,454
Consolidated VIE [Member]
Variable Interest Entity [Line Items]
Properties | Property	17
Apartment units | ApartmentUnit	3,535
Total assets	$ 710,800	713,600
Total liabilities	$ 321,300	$ 313,900
Consolidated VIE [Member] | Consolidated Joint Venture [Member]
Variable Interest Entity [Line Items]
Ownership Percentage	90.00%
Consolidated VIE [Member] | General Partner [Member] | Consolidated Joint Venture [Member]
Variable Interest Entity [Line Items]
Ownership Percentage	10.00%

XML

Investments in Partially Owned Entities - Summary of Companys Investment in Unconsolidated Entities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
Investments in Unconsolidated Entities	$ 52,907	$ 58,349
Operating Property [Member] | Unconsolidated Non-VIE [Member]
Variable Interest Entity [Line Items]
Investments in Unconsolidated Entities		10,494
Ownership Percentage	20.00%
Other [Member]
Variable Interest Entity [Line Items]
Investments in Unconsolidated Entities	$ 11,524	5,490
Consolidated VIE [Member] | Wisconsin Place Developer [Member]
Variable Interest Entity [Line Items]
Investments in Unconsolidated Entities	$ 41,383	$ 42,365
Ownership Percentage	33.30%

XML

Investments in Partially Owned Entities - Summary of Companys Investment in Unconsolidated Entities (Parenthetical) (Details)	12 Months Ended
	Dec. 31, 2018 ApartmentUnit JointVenture	Jun. 30, 2019 ApartmentUnit
Variable Interest Entity [Line Items]
Apartment units		79,624
Operating Property [Member] | Unconsolidated Non-VIE [Member]
Variable Interest Entity [Line Items]
Apartment units	945
Number of joint ventures under agreements | JointVenture	2

XML

Restricted Deposits - Restricted Deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Mortgage escrow deposits:
Real estate taxes and insurance	$ 1,181	$ 876
Replacement reserves	8,599	8,641
Mortgage principal reserves/sinking funds	7,898	9,754
Other	852	852
Mortgage escrow deposits	18,530	20,123
Restricted cash:
Earnest money on pending acquisitions	1,000	5,000
Restricted deposits on real estate investments	1,493	540
Resident security and utility deposits	36,192	35,659
Other	980	7,549
Restricted cash	39,665	48,748
Restricted deposits	$ 58,195	$ 68,871	$ 54,370

XML

Leases - Additional Information (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($) Property	Jun. 30, 2019 USD ($) Property CorporateOfficeLease
Corporate Office Leases [Member]
Operating Leased Assets [Line Items]
Number of operating leases | CorporateOfficeLease		9
Lease termination date		Jan. 31, 2022
Amount incurred for leased office space | $	$ 0.7	$ 1.3
Ground Leases [Member]
Operating Leased Assets [Line Items]
Unsecured borrowing rates for actual pricing period used for calculating discount rate		30 years
Number of operating properties | Property	14	14
Minimum [Member] | Corporate Office Leases [Member]
Operating Leased Assets [Line Items]
Discount rate	3.30%	3.30%
Remaining lease terms	1 year	1 year
Minimum [Member] | Ground Leases [Member]
Operating Leased Assets [Line Items]
Discount rate	4.40%	4.40%
Operating lease expiration year		2042
Maximum [Member] | Corporate Office Leases [Member]
Operating Leased Assets [Line Items]
Discount rate	3.90%	3.90%
Remaining lease terms	10 years	10 years
Maximum [Member] | Ground Leases [Member]
Operating Leased Assets [Line Items]
Discount rate	5.50%	5.50%
Operating lease expiration year		2113
Residential Apartment Leases [Member]
Operating Leased Assets [Line Items]
Percentage of rental income		97.10%
Retail Commercial Leases [Member]
Operating Leased Assets [Line Items]
Percentage of rental income		2.90%
Retail Commercial Leases [Member] | Minimum [Member]
Operating Leased Assets [Line Items]
Retail/commercial leases term	5 years	5 years
Retail Commercial Leases [Member] | Maximum [Member]
Operating Leased Assets [Line Items]
Retail/commercial leases term	10 years	10 years

XML

Leases - Summary of Lease Income Types Relating to Lease Payments (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Operating Leased Assets [Line Items]
Total lease revenue	$ 629,156	$ 1,253,205
Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	611,389	1,216,852
Retail Lease [Member]
Operating Leased Assets [Line Items]
Total lease revenue	17,767	36,353
Residential and Retail Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	615,902	1,226,892
Residential and Retail Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	598,209	1,190,729
Residential and Retail Rent [Member] | Retail Lease [Member]
Operating Leased Assets [Line Items]
Total lease revenue	17,693	36,163
Parking Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	9,419	18,628
Parking Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	9,332	18,469
Parking Rent [Member] | Retail Lease [Member]
Operating Leased Assets [Line Items]
Total lease revenue	87	159
Storage Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	924	1,887
Storage Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	937	1,856
Storage Rent [Member] | Retail Lease [Member]
Operating Leased Assets [Line Items]
Total lease revenue	(13)	31
Pet Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	2,911	5,798
Pet Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	$ 2,911	$ 5,798

XML

Leases - Summary of Lease Income Types Relating to Lease Payments (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating Leased Assets [Line Items]
Other rental income	$ 669,374	$ 639,620	$ 1,331,676	$ 1,272,451
Rental [Member]
Operating Leased Assets [Line Items]
Other rental income	$ 40,200		$ 78,500

XML

Leases - Summary of Right-of-Use Assets and Related Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Leased Assets [Line Items]
Right-of-use assets	$ 431,753	$ 434,201	$ 0
Lease liabilities	281,620	$ 278,287	$ 0
Corporate Office Leases [Member]
Operating Leased Assets [Line Items]
Right-of-use assets	15,381
Lease liabilities	16,879
Ground Leases [Member]
Operating Leased Assets [Line Items]
Right-of-use assets	416,372
Lease liabilities	$ 264,741

XML

Leases - Summary of Right-of-Use Assets and Related Lease Liabilities (Parenthetical) (Details)	6 Months Ended
	Jun. 30, 2019 CorporateOfficeLease
Corporate Office Leases [Member]
Operating Leased Assets [Line Items]
Number of short-term operating leases	2

XML

Leases - Summary of Quantitative Disclosures for Lessees (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Lease cost:
Total lease cost	$ 7,858	$ 15,494
Corporate Office Leases [Member]
Lease cost:
Operating lease cost	900	1,818
Short-term lease cost	56	112
Variable lease cost	$ 508	769
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from Operating leases		2,776
ROU assets obtained in exchange for new operating lease liabilities		$ 16,687
Weighted-average remaining lease term – operating leases	6 years 4 months 24 days	6 years 4 months 24 days
Weighted-average discount rate – operating leases	3.70%	3.70%
Ground Leases [Member]
Lease cost:
Operating lease cost	$ 5,550	$ 11,100
Variable lease cost	$ 844	1,695
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from Operating leases		8,635
ROU assets obtained in exchange for new operating lease liabilities		$ 422,018
Weighted-average remaining lease term – operating leases	56 years 7 months 6 days	56 years 7 months 6 days
Weighted-average discount rate – operating leases	5.00%	5.00%

XML

Leases - Summary of Undiscounted Cash Flows for Contractual Obligations for Minimum Rent Payments/Receipts (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Leases [Abstract]
Remaining 2019	$ (8,339)
2020	(17,208)
2021	(17,148)
2022	(14,993)
2023	(14,843)
2024	(15,101)
Thereafter	(938,561)
Total	$ (1,026,193)
Remaining 2019		$ 31,779
2020		61,674
2021		57,935
2022		54,099
2023		46,417
2024		39,356
Thereafter		139,599
Total		$ 430,859

XML

Leases - Summary of Reconciliation of Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Total minimum rent payments	$ 1,026,193
Less: Lease discount	744,573
Lease liabilities	$ 281,620	$ 278,287	$ 0

XML

Debt - Mortgage Notes Payable - Additional Information (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Mortgage notes payable	$ 2,599,013,000	$ 2,385,470,000
Debt instrument, maturity date	Jan. 10, 2022
Mortgages [Member]
Debt Instrument [Line Items]
Mortgage notes payable	$ 3,100,000
Debt instrument, maturity date	May 28, 2061
Write off of deferred debt issuance cost	$ 1,500,000
Write off unamortized (premium) discount	$ 15,100,000
Weighted average interest rate	4.01%
Mortgages [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	0.10%
Mortgages [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	5.78%
Variable Rate Construction Mortgage [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	Jun. 25, 2022
Variable rate of construction mortgage debt	$ 7,500,000
Total commitment amount	67,600,000
Bonds [Member]
Debt Instrument [Line Items]
Repayments of long-term debt	$ 95,500,000
Debt Instrument Maturity year	2036
Credit enhanced debt [Member]
Debt Instrument [Line Items]
Mortgage notes payable	$ 345,000,000.0
Fannie Mae Pool 3 [Member] | Mortgages [Member]
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt	$ 288,100
Debt instrument, maturity date	Mar. 01, 2029
Debt instrument, interest rate, stated percentage	3.94%

XML

Debt - Notes - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Unsecured notes	$ 6,531,408	$ 5,933,286
Debt instrument, maturity date	Jan. 10, 2022
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 01, 2047
Weighted average interest rate	4.30%
Notes Payable, Other Payables [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	2.375%
Notes Payable, Other Payables [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	7.57%
3.00% Notes [Member]
Debt Instrument [Line Items]
Proceeds from issuance of unsecured debt	$ 600,000
Debt instrument, interest rate, stated percentage	3.00%
Proceeds from debt, net of issuance costs	$ 597,500
Debt instrument, interest rate, effective percentage	3.85%

XML

Debt - Line of Credit and Commercial Paper - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019 USD ($)
Line of Credit Facility [Line Items]
Debt instrument, maturity date	Jan. 10, 2022
Commercial Paper [Member]
Line of Credit Facility [Line Items]
Unsecured revolving credit facility	$ 500,000,000.0
Commercial paper principal outstanding	$ 0
Weighted average interest rate	2.73%
Weighted average amount outstanding	$ 348,800,000
Commercial paper principal outstanding	500,000,000.0
Unsecured Revolving Credit Facility
Line of Credit Facility [Line Items]
Unsecured revolving credit facility	2,000,000,000.0
Ability to increase LOC facility	$ 750,000,000.0
Debt instrument, basis spread on variable rate	0.825%
Percentage points of line of credit facility commitment fee	0.125%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Weighted average interest rate	3.25%
Commercial paper principal outstanding	$ 0
Amount restricted/dedicated to support letters of credit	6,700,000
Line of credit facility current borrowing capacity	$ 1,900,000,000

XML

Debt - Other - Additional Information (Details) $ in Millions	Jun. 30, 2019 USD ($)
Debt Disclosure [Abstract]
Letters of credit outstanding	$ 9.0

XML

Derivative and Other Fair Value Instruments - Summary of Carrying and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Carrying Value [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Total debt, net	$ 9,130,421	$ 8,817,939
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Total debt, net	9,571,506	8,833,928
Mortgage Notes Payable, Net [Member] | Carrying Value [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Total debt, net	2,599,013	2,385,470
Mortgage Notes Payable, Net [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Total debt, net	2,602,782	2,352,502
Unsecured Debt [Member] | Carrying Value [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Total debt, net	6,531,408	6,432,469
Unsecured Debt [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Total debt, net	$ 6,968,724	$ 6,481,426

XML

Derivative and Other Fair Value Instruments - Summary of Consolidated Derivative Instruments (Details) - Fair Value Hedges [Member]	6 Months Ended
	Jun. 30, 2019 USD ($)
Derivative [Line Items]
Current Notional Balance	$ 450,000,000
Maturity Date	2019
Minimum [Member]
Derivative [Line Items]
Interest Rate	2.375%
Maximum [Member]
Derivative [Line Items]
Interest Rate	2.375%

XML

Derivative and Other Fair Value Instruments - Summary of Consolidated Derivative Instruments (Parenthetical) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019 USD ($)
Derivative [Line Items]
Debt instrument, maturity date	Jan. 10, 2022
2.375% Notes [Member]
Derivative [Line Items]
Proceeds from issuance of unsecured debt	$ 450.0
Interest Rate Ranges	2.375%
Debt instrument, maturity date	Jul. 01, 2019
2.375% Notes [Member] | London Interbank Offered Rate (LIBOR) [Member]
Derivative [Line Items]
Debt instrument, basis spread on variable rate	0.61%
Debt instrument, description of variable rate basis	90-Day LIBOR

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Derivative and Other Fair Value Instruments - Summary of Fair Value Measurements for Each Major Category of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Fair Value Of SERP Investments	$ 145,577	$ 134,088
Assets, Fair Value Disclosure	145,577	136,088
Other Liabilities, Fair Value Disclosure	145,577	134,088
Liabilities, Fair Value Disclosure	145,601	146,216
Redeemable Noncontrolling Interests - Operating Partnership/Redeemable Limited Partners	436,035	379,106	$ 366,483	$ 366,955
Forward Starting Swaps [Member]
Derivatives, Fair Value [Line Items]
Forward Starting Swaps		2,000
Forward Starting Swaps		9,851
Fair Value Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	24	2,277
Fair Value, Inputs, Level 1 [Member]
Derivatives, Fair Value [Line Items]
Fair Value Of SERP Investments	145,577	134,088
Assets, Fair Value Disclosure	145,577	134,088
Other Liabilities, Fair Value Disclosure	145,577	134,088
Liabilities, Fair Value Disclosure	145,577	134,088
Redeemable Noncontrolling Interests - Operating Partnership/Redeemable Limited Partners	0	0
Fair Value, Inputs, Level 1 [Member] | Forward Starting Swaps [Member]
Derivatives, Fair Value [Line Items]
Forward Starting Swaps		0
Forward Starting Swaps		0
Fair Value, Inputs, Level 1 [Member] | Fair Value Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	0	0
Fair Value, Inputs, Level 2 [Member]
Derivatives, Fair Value [Line Items]
Fair Value Of SERP Investments	0	0
Assets, Fair Value Disclosure	0	2,000
Other Liabilities, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	24	12,128
Redeemable Noncontrolling Interests - Operating Partnership/Redeemable Limited Partners	436,035	379,106
Fair Value, Inputs, Level 2 [Member] | Forward Starting Swaps [Member]
Derivatives, Fair Value [Line Items]
Forward Starting Swaps		2,000
Forward Starting Swaps		9,851
Fair Value, Inputs, Level 2 [Member] | Fair Value Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	24	2,277
Fair Value, Inputs, Level 3 [Member]
Derivatives, Fair Value [Line Items]
Fair Value Of SERP Investments	0	0
Assets, Fair Value Disclosure	0	0
Other Liabilities, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	0	0
Redeemable Noncontrolling Interests - Operating Partnership/Redeemable Limited Partners	0	0
Fair Value, Inputs, Level 3 [Member] | Forward Starting Swaps [Member]
Derivatives, Fair Value [Line Items]
Forward Starting Swaps		0
Forward Starting Swaps		0
Fair Value, Inputs, Level 3 [Member] | Fair Value Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$ 0	$ 0

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Derivative and Other Fair Value Instruments - Summary of Effect of Fair Value Hedges on the Accompanying Consolidated Statements of Operations and Comprehensive Income (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income on Derivative	$ 2,253	$ (2,151)
Amount of Gain/(Loss) Recognized in Income on Hedged Item	(2,253)	2,151
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income on Derivative	2,253	(2,151)
Amount of Gain/(Loss) Recognized in Income on Hedged Item	$ (2,253)	$ 2,151

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Derivative and Other Fair Value Instruments - Summary of Effect of Cash Flow Hedges on the Accompanying Consolidated Statements of Operations and Comprehensive Income (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion - Amount of Gain/(Loss) Recognized in OCI on Derivative	$ (33,765)	$ 11,995
Effective Portion - Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income	(8,902)	(9,307)
Ineffective Portion - Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income		0
Forward Starting Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion - Amount of Gain/(Loss) Recognized in OCI on Derivative	(33,765)	11,995
Effective Portion - Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income	$ (8,902)	(9,307)
Ineffective Portion - Amount of Gain/ (Loss) Reclassified from Accumulated OCI into Income		$ 0

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Derivative and Other Fair Value Instruments - Additional Information (Details) $ in Millions	1 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2019 USD ($) DerivativeInstrument	Jun. 30, 2019 USD ($) DerivativeInstrument	Dec. 31, 2018 USD ($)
Derivative [Line Items]
Unrealized gain (loss) on interest rate cash flow hedges, pretax, accumulated other comprehensive income (loss)		$ 89.8	$ 65.0
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months, net	$ 25.7	$ 25.7
Forward Starting Swaps [Member]
Derivative [Line Items]
Forward starting swaps settled | DerivativeInstrument	10	10
Debt instrument, term	10 years
Proceeds from settlement of derivative instruments	$ 41.8
Public notes, face value	600.0	$ 600.0
Interest expense	0.2
Increase (decrease) in charges hedge termination activities	$ 41.6

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Earnings Per Share and Earnings Per Unit - Computation of Net Income per Share Basic and Net Income per Share Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net income	$ 321,299	$ 118,410	$ 430,556	$ 338,958
Allocation to Noncontrolling Interests – Operating Partnership	(11,510)	(4,299)	(15,429)	(12,358)
Partially Owned Properties	(821)	(509)	(1,620)	(1,189)
Preferred distributions	(772)	(772)	(1,545)	(1,545)
Net income available to Common Shares	308,196	112,830	411,962	323,866
Numerator for net income per share – diluted	$ 319,706	$ 117,129	$ 427,391	$ 336,224
Weighted average Common Shares outstanding	370,342	367,930	369,952	367,865
OP Units	12,885	12,865	12,902	12,864
Dilutive Securities Options	2,880	2,628	2,790	2,495
Denominator for net income per share – diluted	386,107	383,423	385,644	383,224
Net income per share – basic	$ 0.83	$ 0.31	$ 1.11	$ 0.88
Net income per share – diluted	$ 0.83	$ 0.31	$ 1.11	$ 0.88

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Earnings Per Share and Earnings Per Unit - Computation of Net Income per Unit Basic and Net Income per Unit Diluted for Operating Partnership (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net income	$ 321,299	$ 118,410	$ 430,556	$ 338,958
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	$ (821)	$ (509)	$ (1,620)	$ (1,189)
Dilutive Securities Options	2,880	2,628	2,790	2,495
Denominator for net income per share – diluted	386,107	383,423	385,644	383,224
Net income per Unit – basic	$ 0.83	$ 0.31	$ 1.11	$ 0.88
Net income per Unit – diluted	$ 0.83	$ 0.31	$ 1.11	$ 0.88
ERPOP [Member]
Net income	$ 321,299	$ 118,410	$ 430,556	$ 338,958
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(821)	(509)	(1,620)	(1,189)
Allocation to Preference Units	(772)	(772)	(1,545)	(1,545)
Numerator for net income per Unit – basic and diluted	$ 319,706	$ 117,129	$ 427,391	$ 336,224
Denominator for net income per Unit – basic	383,227	380,795	382,854	380,729
Dilutive Securities Options	2,880	2,628	2,790	2,495
Denominator for net income per share – diluted	386,107	383,423	385,644	383,224
Net income per Unit – basic	$ 0.83	$ 0.31	$ 1.11	$ 0.88
Net income per Unit – diluted	$ 0.83	$ 0.31	$ 1.11	$ 0.88

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Commitments and Contingencies - Additional Information (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019 USD ($) Property ApartmentUnit
Commitments And Contingencies [Abstract]
Projects in various stages of development | Property	3
Units in various stages of development | ApartmentUnit	691
Consolidated project under development commitment fund | $	$ 354.7
Various stages of development with estimated completion dates ranging through September 30, 2021	Sep. 30, 2021

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Reportable Segments - Additional Information (Details) - Customer	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Disclosure Of Entitys Reportable Segments [Abstract]
Number of customer contributed 10% or more of total revenue	0	0

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Reportable Segments - Reconciliation of NOI from Rental Real Estate Specific to Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Rental income	$ 669,374	$ 639,620	$ 1,331,676	$ 1,272,451
Property and maintenance expense	(108,461)	(103,744)	(223,531)	(211,946)
Real estate taxes and insurance expense	(91,446)	(89,482)	(182,888)	(181,396)
Operating income	369,260	217,603	579,229	556,685
Same Store, Non-same Store and Other
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Rental income	669,374	639,620	1,331,676	1,272,451
Property and maintenance expense	(108,461)	(103,744)	(223,531)	(211,946)
Real estate taxes and insurance expense	(91,446)	(89,482)	(182,888)	(181,396)
Total operating expenses	(199,907)	(193,226)	(406,419)	(393,342)
Operating income	$ 469,467	$ 446,394	$ 925,257	$ 879,109

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Reportable Segments - NOI for Each Segment from Our Rental Real Estate Specific to Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Rental income	$ 669,374	$ 639,620	$ 1,331,676	$ 1,272,451
Operating income	369,260	217,603	579,229	556,685
Total Assets	20,990,711		20,990,711		$ 20,394,209
Capital Expenditures			81,528
Same store
Segment Reporting Information [Line Items]
Rental income	630,569	609,272	1,241,077	1,201,296
Operating expenses	186,521	180,488	374,457	360,407
Operating income	444,048	428,784	866,620	840,889
Total Assets	17,664,156		17,664,156
Capital Expenditures			76,267
Non-same store/other
Segment Reporting Information [Line Items]
Rental income	38,805	30,348	90,599	71,155
Operating expenses	13,386	12,738	31,962	32,935
Operating income	25,419	17,610	58,637	38,220
Total Assets	3,326,555		3,326,555
Capital Expenditures			5,261
Same Store, Non-same Store and Other
Segment Reporting Information [Line Items]
Rental income	669,374	639,620	1,331,676	1,272,451
Operating expenses	199,907	193,226	406,419	393,342
Operating income	469,467	446,394	925,257	879,109
Other markets | Same store
Segment Reporting Information [Line Items]
Rental income	518	481	1,040	968
Operating expenses	192	175	377	339
Operating income	326	306	663	629
Total Assets	12,887		12,887
Capital Expenditures			126
Los Angeles | Same store
Segment Reporting Information [Line Items]
Rental income	117,147	111,230	232,546	222,227
Operating expenses	33,776	31,845	68,259	63,887
Operating income	83,371	79,385	164,287	158,340
Total Assets	3,027,063		3,027,063
Capital Expenditures			15,775
Orange County | Same store
Segment Reporting Information [Line Items]
Rental income	26,058	25,193	51,886	49,996
Operating expenses	5,996	6,140	12,201	12,231
Operating income	20,062	19,053	39,685	37,765
Total Assets	412,837		412,837
Capital Expenditures			4,812
San Diego | Same store
Segment Reporting Information [Line Items]
Rental income	23,720	22,932	47,023	45,425
Operating expenses	5,958	5,790	12,084	11,754
Operating income	17,762	17,142	34,939	33,671
Total Assets	398,072		398,072
Capital Expenditures			1,749
Subtotal - Southern California | Same store
Segment Reporting Information [Line Items]
Rental income	166,925	159,355	331,455	317,648
Operating expenses	45,730	43,775	92,544	87,872
Operating income	121,195	115,580	238,911	229,776
Total Assets	3,837,972		3,837,972
Capital Expenditures			22,336
San Francisco | Same store
Segment Reporting Information [Line Items]
Rental income	123,341	118,416	245,103	235,767
Operating expenses	29,317	28,591	59,735	58,001
Operating income	94,024	89,825	185,368	177,766
Total Assets	3,375,932		3,375,932
Capital Expenditures			14,222
Washington DC | Same store
Segment Reporting Information [Line Items]
Rental income	112,694	110,096	223,479	218,624
Operating expenses	34,066	33,553	68,742	67,463
Operating income	78,628	76,543	154,737	151,161
Total Assets	3,716,255		3,716,255
Capital Expenditures			9,007
New York | Same store
Segment Reporting Information [Line Items]
Rental income	113,579	110,691	225,942	220,456
Operating expenses	46,304	43,683	94,472	88,496
Operating income	67,275	67,008	131,470	131,960
Total Assets	3,917,085		3,917,085
Capital Expenditures			10,679
Boston | Same store
Segment Reporting Information [Line Items]
Rental income	58,224	56,379	112,127	108,348
Operating expenses	15,859	15,475	31,075	30,152
Operating income	42,365	40,904	81,052	78,196
Total Assets	1,490,866		1,490,866
Capital Expenditures			11,924
Seattle | Same store
Segment Reporting Information [Line Items]
Rental income	55,288	53,854	101,931	99,485
Operating expenses	15,053	15,236	27,512	28,084
Operating income	40,235	38,618	74,419	71,401
Total Assets	1,313,159		1,313,159
Capital Expenditures			7,973
Non-same store | Non-same store/other
Segment Reporting Information [Line Items]
Rental income	36,712	17,393	81,933	40,438
Operating expenses	11,676	6,465	26,738	15,393
Operating income	25,036	10,928	55,195	25,045
Total Assets	2,548,854		2,548,854
Capital Expenditures			4,961
Other [Member] | Non-same store/other
Segment Reporting Information [Line Items]
Rental income	2,093	12,955	8,666	30,717
Operating expenses	1,710	6,273	5,224	17,542
Operating income	383	$ 6,682	3,442	$ 13,175
Total Assets	$ 777,701		777,701
Capital Expenditures			$ 300

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Reportable Segments - NOI for Each Segment from Our Rental Real Estate Specific to Continuing Operations (Parenthetical) (Details) - Property	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Disclosure Of Entitys Reportable Segments [Abstract]
Units in same store properties	74,236	74,236	73,609	73,609

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Subsequent Events - Additional Information (Details) $ in Thousands		6 Months Ended
	Jul. 01, 2019 USD ($) Property ApartmentUnit	Jun. 30, 2019 USD ($) Property ApartmentUnit
Subsequent Event [Line Items]
Properties acquired | Property		6
Property Units acquired | ApartmentUnit		1,644
Purchase Price		$ 650,882
Debt instrument, maturity date		Jan. 10, 2022
Subsequent Event | Mortgages Debt [Member]
Subsequent Event [Line Items]
Repayments of long-term debt	$ 84,500
Debt instrument, interest rate, stated percentage	4.79%
Debt instrument, maturity date	Apr. 01, 2053
Prepayment penalty charges	$ 3,400
Subsequent Event | 2.375% Notes [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate, stated percentage	2.375%
Repayments of unsecured debt	$ 450,000
Debt instrument, basis spread on variable rate	0.61%
Subsequent Event | 2.375% Notes [Member] | London Interbank Offered Rate (LIBOR) [Member]
Subsequent Event [Line Items]
Debt instrument, description of variable rate basis	90-Day LIBOR plus 0.61%
Subsequent Event | Fannie Mae Pool 3 [Member] | Mortgages Debt [Member]
Subsequent Event [Line Items]
Repayments of long-term debt	$ 500,000
Debt instrument, interest rate, stated percentage	5.78%
Debt instrument, maturity date	Jul. 01, 2020
Property/Apartment [Member] | Subsequent Event
Subsequent Event [Line Items]
Properties acquired | Property	2
Property Units acquired | ApartmentUnit	549
Purchase Price	$ 192,900
Number of properties sold | Property	1
Number of self managed apartments | ApartmentUnit	298
Amount of property sold	$ 117,000
Land Parcels [Member]
Subsequent Event [Line Items]
Purchase Price		$ 16,232
Land Parcels [Member] | Subsequent Event
Subsequent Event [Line Items]
Properties acquired | Property	1
Purchase Price	$ 3,600
Number of properties sold | Property	1
Amount of property sold	$ 1,900