CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 699,517	$ 708,402
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	619,003	616,201
Amortization of deferred financing costs	6,253	8,664
Amortization of above/below market lease intangibles	(53)	(53)
Amortization of discounts and premiums on debt	3,834	10,137
Amortization of deferred settlements on derivative instruments	17,266	14,650
Amortization of right-of-use assets	8,785	9,966
Write-off of pursuit costs	4,864	4,098
(Income) loss from investments in unconsolidated entities	2,445	(66,906)
Distributions from unconsolidated entities – return on capital	100	2,486
Net (gain) loss on sales of real estate properties	(352,218)	(269,400)
Net (gain) loss on sales of land parcels		(2,077)
Net (gain) loss on debt extinguishment		3,381
Realized/unrealized (gain) loss on derivative instruments	50
Compensation paid with Company Common Shares	18,275	20,777
Other operating activities, net	1,805
Changes in assets and liabilities:
(Increase) decrease in other assets	(30,197)	(20,871)
Increase (decrease) in accounts payable and accrued expenses	54,418	57,822
Increase (decrease) in accrued interest payable	(1,183)	11,125
Increase (decrease) in lease liabilities	(1,650)	(1,784)
Increase (decrease) in other liabilities	(8,381)	(15,578)
Increase (decrease) in security deposits	(8,609)	3,140
Net cash provided by operating activities	1,034,324	1,094,180
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in real estate – acquisitions	(48,898)	(1,147,236)
Investment in real estate – development/other	(157,778)	(137,238)
Capital expenditures to real estate	(92,123)	(128,335)
Non-real estate capital additions	(19,290)	(2,139)
Interest capitalized for real estate under development	(6,880)	(4,801)
Proceeds from disposition of real estate, net	747,600	692,649
Investments in unconsolidated entities	(6,664)	(9,073)
Distributions from unconsolidated entities – return of capital	1,000	78,262
Purchase of investment securities and other investments	(509)	(269)
Net cash provided by (used for) investing activities	416,458	(658,180)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt financing costs	(2,923)	(12,025)
Mortgage notes payable, net:
Proceeds	505,375	295,713
Lump sum payoffs	(127,767)	(723,021)
Scheduled principal repayments	(5,821)	(4,883)
Net gain (loss) on debt extinguishment		(3,381)
Notes, net:
Proceeds		1,194,468
Lump sum payoffs		(450,000)
Line of credit and commercial paper:
Line of credit proceeds	1,870,000	5,850,000
Line of credit repayments	(1,890,000)	(5,850,000)
Commercial paper proceeds	6,726,167	13,341,198
Commercial paper repayments	(7,724,000)	(13,486,000)
Proceeds from (payments on) settlement of derivative instruments	(1,240)	(41,616)
Proceeds from Employee Share Purchase Plan (ESPP)	3,556	2,323
Proceeds from exercise of options	11,426	67,066
Payment of offering costs		(789)
Other financing activities, net	(31)	(49)
Contributions – Noncontrolling Interests – Partially Owned Properties	417	4,594
Contributions – Noncontrolling Interests – Operating Partnership	12
Distributions:
Common Shares	(659,668)	(620,391)
Preferred Shares	(2,318)	(2,318)
Noncontrolling Interests – Operating Partnership	(24,440)	(22,202)
Noncontrolling Interests – Partially Owned Properties	(11,312)	(6,404)
Net cash provided by (used for) financing activities	(1,332,567)	(467,717)
Net increase (decrease) in cash and cash equivalents and restricted deposits	118,215	(31,717)
Cash and cash equivalents and restricted deposits, beginning of period	116,999	116,313
Cash and cash equivalents and restricted deposits, end of period	235,214	84,596
Cash and cash equivalents	178,333	28,777
Restricted deposits	56,881	55,819
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	223,703	246,410
Net cash paid (received) for income and other taxes	(1,092)	918
Amortization of deferred financing costs:
Investment in real estate, net	(180)	(60)
Other assets	1,755	1,808
Mortgage notes payable, net	1,337	3,529
Notes, net	3,341	3,387
Amortization of discounts and premiums on debt:
Mortgage notes payable, net	1,791	8,017
Notes, net	2,043	2,120
Amortization of deferred settlements on derivative instruments:
Other liabilities	(9)	(9)
Accumulated other comprehensive income	17,275	14,659
Write-off of pursuit costs:
Investment in real estate, net	4,621	4,042
Other assets	219	48
Accounts payable and accrued expenses	24	8
(Income) loss from investments in unconsolidated entities:
Investments in unconsolidated entities	1,474	(67,900)
Other liabilities	971	994
Realized/unrealized (gain) loss on derivative instruments:
Other assets		2,002
Notes, net		2,277
Other liabilities	1,240	29,486
Accumulated other comprehensive income	(1,190)	(33,765)
Investments in unconsolidated entities:
Investments in unconsolidated entities	(5,164)	(6,973)
Other liabilities	(1,500)	(2,100)
Debt financing costs:
Other assets	(231)	145
Mortgage notes payable, net	$ (2,692)	(2,354)
Notes, net		(10,454)
Other liabilities		638
Right-of-use assets and lease liabilities initial measurement and reclassifications:
Right-of-use assets		(491,010)
Other assets		184,116
Lease liabilities		335,096
Other liabilities		$ (28,202)