v3.26.1
NON-CONTROLLING INTERESTS - Non-controlling Interests of others in Operating Subsidiaries and Properties (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Disclosure of subsidiaries [line items]    
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 17,760 $ 18,669
Subsidiaries with material non-controlling interests | Corporate Holding Entities    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 0.00% 0.00%
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 5,061 $ 4,991
Subsidiaries with material non-controlling interests | Brookfield Office Properties (“BPO”)    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 0.00% 0.00%
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 4,019 $ 4,134
Subsidiaries with material non-controlling interests | Brookfield Office Properties (“BPO”) | Bottom of range    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 1.00%  
Subsidiaries with material non-controlling interests | Brookfield Office Properties (“BPO”) | Top of range    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 100.00%  
Subsidiaries with material non-controlling interests | U.S. Retail    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 0.00% 0.00%
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 2,511 $ 2,836
Subsidiaries with material non-controlling interests | U.S. Multifamily(4)    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 98.00% 98.00%
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 1,026 $ 921
Subsidiaries with material non-controlling interests | Australia Storage    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 86.00% 0.00%
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 676 $ 0
Subsidiaries with material non-controlling interests | U.S. Senior Living    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 95.00% 0.00%
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 622 $ 0
Subsidiaries with material non-controlling interests | South Korea Mixed-Use    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 0.00% 78.00%
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 0 $ 616
Subsidiaries with material non-controlling interests | U.K. and Ireland Short Stay    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 73.00% 73.00%
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 409 $ 471
Subsidiaries with material non-controlling interests | U.S. Manufactured Housing    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 77.00% 77.00%
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 40 $ 457
Subsidiaries with material non-controlling interests | Other LP Investments    
Disclosure of subsidiaries [line items]    
Non-controlling interests: Interests of others in operating subsidiaries and properties $ 3,396 $ 4,243
Subsidiaries with material non-controlling interests | Other LP Investments | Bottom of range    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 33.00% 33.00%
Subsidiaries with material non-controlling interests | Other LP Investments | Top of range    
Disclosure of subsidiaries [line items]    
Proportion of economic interests held by non-controlling interests 97.00% 95.00%