v3.26.3
Investment in Unconsolidated Entities and International Investments - Combined Balance Sheets (Details) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2026
Dec. 31, 2025
ASSETS:    
Investment properties, at cost $ 51,263,154 $ 50,946,067
Less - accumulated depreciation 21,829,576 20,701,510
Investment properties, at cost, net 29,433,578 30,244,557
Cash and cash equivalents 569,941 823,147
Tenant receivables and accrued revenue, net 899,587 934,077
Right-of-use assets, net 725,194 755,934
Deferred costs and other assets 2,131,594 1,981,035
Total assets 39,075,130 40,606,466
Liabilities and Partners' Deficit:    
Mortgages 28,423,903 28,430,175
Accounts payable, accrued expenses, intangibles, and deferred revenues 1,985,380 1,954,402
Lease liabilities 724,961 756,539
Other liabilities 740,980 1,017,816
Total liabilities 33,666,361 33,901,073
Preferred units 268,936 233,306
Total liabilities and equity 39,075,130 40,606,466
Unconsolidated properties | Equity Method Investees excluding Klepierre and other platform investments    
Our Share of:    
Partners' deficit (1,553,567) (1,247,554)
Add: Excess Investment 2,928,745 2,773,173
Our net Investment in unconsolidated entities, at equity 1,375,178 1,525,619
Unconsolidated properties | Equity Method Investees excluding Klepierre and other platform investments    
ASSETS:    
Investment properties, at cost 21,951,852 22,077,749
Less - accumulated depreciation 10,289,708 9,020,481
Investment properties, at cost, net 11,662,144 13,057,268
Cash and cash equivalents 1,572,520 1,264,619
Tenant receivables and accrued revenue, net 617,183 605,756
Right-of-use assets, net 116,537 108,349
Deferred costs and other assets 690,541 572,826
Total assets 14,658,925 15,608,818
Liabilities and Partners' Deficit:    
Mortgages 16,429,166 16,374,773
Accounts payable, accrued expenses, intangibles, and deferred revenues 1,208,444 1,117,855
Lease liabilities 120,242 99,837
Other liabilities 393,534 334,246
Total liabilities 18,151,386 17,926,711
Preferred units 67,450 67,450
Partners' deficit (3,559,911) (2,385,343)
Total liabilities and equity $ 14,658,925 $ 15,608,818
Unconsolidated properties | Maximum    
Our Share of:    
Estimated life of investment property 40 years