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SEGMENT INFORMATION - Earnings from Equity Accounted Investment and Interest Expense (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of operating segments [line items]      
Share of net earnings from equity accounted investments $ 826 $ 1,020 $ (749)
Interest expense (2,683) (2,593) (2,592)
Core Office      
Disclosure of operating segments [line items]      
Share of net earnings from equity accounted investments 550 644 150
Interest expense (723) (570) (586)
Core Retail      
Disclosure of operating segments [line items]      
Share of net earnings from equity accounted investments 234 472 (743)
Interest expense (660) (649) (647)
LP Investments      
Disclosure of operating segments [line items]      
Share of net earnings from equity accounted investments 42 (96) (156)
Interest expense (1,000) (1,069) (1,104)
Corporate      
Disclosure of operating segments [line items]      
Share of net earnings from equity accounted investments 0 0 0
Interest expense $ (300) $ (305) $ (255)