CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Operating activities:
Net income		$ 1,090,274	$ 705,054
Adjustments to reconcile net income to net cash provided from (used in) operating activities:
Depreciation and amortization		764,429	707,625
Other amortization expenses		13,474	12,110
Provision for loan losses		18,690	0
Impairment of assets		28,035	39,557
Stock-based compensation expense		20,501	22,800
Loss (gain) on derivatives and financial instruments, net		670	(5,642)
Loss (gain) on extinguishment of debt, net		81,543	16,044
Loss (income) from unconsolidated entities		14,986	836
Rental income less than (in excess of) cash received		(78,980)	(7,830)
Amortization related to above (below) market leases, net		(335)	1,984
Loss (gain) on real estate dispositions, net		(735,977)	(373,662)
Distributions by unconsolidated entities		0	21
Increase (decrease) in accrued expenses and other liabilities		845	103,474
Decrease (increase) in receivables and other assets		(8,255)	(11,223)
Net cash provided from (used in) operating activities		1,209,900	1,211,148
Investing activities:
Cash disbursed for acquisitions		(3,004,768)	(3,190,534)
Cash disbursed for capital improvements to existing properties		(206,413)	(173,635)
Cash disbursed for construction in progress		(258,113)	(88,146)
Capitalized interest		(10,404)	(6,357)
Investment in real estate loans receivable		(82,345)	(67,136)
Principal collected on real estate loans receivable		32,130	149,592
Other investments, net of payments		(13,304)	(49,572)
Contributions to unconsolidated entities		(194,490)	(42,697)
Distributions by unconsolidated entities		98,880	61,253
Proceeds from (payments on) derivatives		(20,569)
Proceeds from (payments on) derivatives			65,438
Proceeds from sales of real property		2,601,071	1,208,501
Net cash provided from (used in) investing activities		(1,058,325)	(2,133,293)
Financing activities:
Net increase (decrease) in unsecured credit facility and commercial paper		187,586	593,000
Proceeds from issuance of senior unsecured notes		3,253,516	2,825,898
Payments to extinguish senior unsecured notes		(3,107,500)	(1,450,000)
Net proceeds from the issuance of secured debt		318,854	44,606
Payments on secured debt		(233,952)	(238,867)
Net proceeds from the issuance of common stock		686,105	242,411
Payments for deferred financing costs and prepayment penalties		(82,249)	(29,701)
Contributions by noncontrolling interests	[1]	42,988	11,238
Distributions to noncontrolling interests	[1]	(138,270)	(86,462)
Cash distributions to stockholders		(1,047,968)	(1,006,274)
Other financing activities		(11,643)	(6,290)
Net cash provided from (used in) financing activities		(132,533)	899,559
Effect of foreign currency translation on cash, cash equivalents and restricted cash		(4,436)	(5,432)
Increase (decrease) in cash, cash equivalents and restricted cash		14,606	(28,018)
Cash, cash equivalents and restricted cash at beginning of period		316,129	309,303
Cash, cash equivalents and restricted cash at end of period		330,735	281,285
Supplemental cash flow information:
Interest paid		416,523	312,452
Income taxes paid (received), net		$ 4,784	$ 3,195

[1] Includes amounts attributable to redeemable noncontrolling interests.