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EQUITY ACCOUNTED INVESTMENTS - Equity Accounted Investments, Reconciliation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reconciliation Of Changes In Investments      
Equity accounted investments, beginning of year $ 19,719 $ 20,764  
Additions 698 522  
Disposals and return of capital distributions (459) (108)  
Share of net (losses) earnings from equity accounted investments 1,020 (749) $ 1,969
Distributions received (172) (618)  
Foreign currency translation (145) 107  
Reclassification to assets held for sale (210) 121  
Other comprehensive income and other 356 (320)  
Equity accounted investments, end of year $ 20,807 $ 19,719 $ 20,764