HELD FOR SALE - Narratives (Details) $ in Millions	3 Months Ended
HELD FOR SALE - Narratives (Details) $ in Millions	Jun. 30, 2026 USD ($) property	Mar. 31, 2026 USD ($) property	Dec. 31, 2025 property
Disclosure of financial assets [line items]
Proceeds from sale of investment property \| $		$ 442
Office \| United States
Disclosure of financial assets [line items]
Number of assets held for sale	3		5
Number of investment property sold	5	1
Retail \| United States
Disclosure of financial assets [line items]
Number of assets held for sale	4		3
Retail \| Canada
Disclosure of financial assets [line items]
Number of assets held for sale			1
Number of investment property sold		1
Hotel \| United States
Disclosure of financial assets [line items]
Number of assets held for sale	2		3
Number of investment property sold	5	3
Manufactured housing \| United States
Disclosure of financial assets [line items]
Number of assets held for sale	1
Number of investment property sold		17
Multifamily \| United States
Disclosure of financial assets [line items]
Number of assets held for sale	1
Number of investment property sold	1
Proceeds from sale of investment property \| $	$ 58
Malls \| United States
Disclosure of financial assets [line items]
Number of investment property sold	2