v3.26.1
INVESTMENT PROPERTIES - Investment Properties Measured at Fair Value (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Disclosure of fair value measurement of assets [line items]    
Total assets $ 102,158 $ 99,280
Level 1    
Disclosure of fair value measurement of assets [line items]    
Total assets 0 0
Level 2    
Disclosure of fair value measurement of assets [line items]    
Total assets 0 0
Level 3 | Commercial properties    
Disclosure of fair value measurement of assets [line items]    
Total assets 43,511 54,672
Level 3 | Commercial developments    
Disclosure of fair value measurement of assets [line items]    
Total assets 648 2,262
Office | Level 1    
Disclosure of fair value measurement of assets [line items]    
Total assets 0 0
Office | Level 2    
Disclosure of fair value measurement of assets [line items]    
Total assets 0 0
Office | Level 3 | Commercial properties    
Disclosure of fair value measurement of assets [line items]    
Total assets 18,242 18,114
Office | Level 3 | Commercial developments    
Disclosure of fair value measurement of assets [line items]    
Total assets 363 1,460
Retail | Level 1    
Disclosure of fair value measurement of assets [line items]    
Total assets 0 0
Retail | Level 2    
Disclosure of fair value measurement of assets [line items]    
Total assets 0 0
Retail | Level 3 | Commercial properties    
Disclosure of fair value measurement of assets [line items]    
Total assets 18,500 18,712
Retail | Level 3 | Commercial developments    
Disclosure of fair value measurement of assets [line items]    
Total assets 45 45
LP Investments | Level 1    
Disclosure of fair value measurement of assets [line items]    
Total assets 0 0
LP Investments | Level 2    
Disclosure of fair value measurement of assets [line items]    
Total assets 0 0
LP Investments | Level 3 | Commercial properties    
Disclosure of fair value measurement of assets [line items]    
Total assets 6,769 17,846
LP Investments | Level 3 | Commercial developments    
Disclosure of fair value measurement of assets [line items]    
Total assets $ 240 $ 757