SUBSEQUENT EVENT (Details) $ in Millions, $ in Millions	Jul. 01, 2019 USD ($) property	Jul. 01, 2019 CAD ($) property	Jun. 30, 2019 property
Subsequent Event [Line Items]
Number of real estate properties | property			1,200
Le Groupe Maurice
Subsequent Event [Line Items]
Remaining ownership percentage retained by investee	15.00%	15.00%
Subsequent Event | CANADA
Subsequent Event [Line Items]
Number of real estate properties | property	31	31
Subsequent Event | Canada, Dollars | Loans Receivable
Subsequent Event [Line Items]
Loans receivable | $		$ 947
Subsequent Event | United States of America, Dollars | Loans Receivable
Subsequent Event [Line Items]
Loans receivable | $	$ 723
Subsequent Event | Le Groupe Maurice
Subsequent Event [Line Items]
Ownership interest in properties	85.00%	85.00%