Schedule III: Real Estate and Accumulated Depreciation (Rollforward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Carrying cost:
Balance at beginning of period	$ 26,850,442	$ 27,133,514	$ 24,973,983
Additions during period:
Acquisitions	2,413,570	249,290	1,941,018
Capital expenditures	423,752	485,479	575,624
Deductions during period:
Foreign currency translation	17,030	80,302	107,508
Other	(1,224,924)	(1,098,143)	(464,619)
Balance at end of period	28,479,870	26,850,442	27,133,514
Accumulated depreciation:
Balance at beginning of period	6,967,413	6,200,230	5,492,310
Additions during period:
Depreciation expense	865,627	809,067	811,936
Dispositions:
Sales and/or transfers to assets held for sale	(401,208)	(82,559)	(116,771)
Foreign currency translation	1,648	40,675	12,755
Balance at end of period	$ 7,433,480	$ 6,967,413	$ 6,200,230