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BORROWINGS - Non-Recourse Borrowings (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about borrowings [line items]    
Current $ 2,701 $ 1,551
Non-current 23,833 18,469
Non-recourse borrowings    
Disclosure of detailed information about borrowings [line items]    
Total $ 26,534 $ 20,020