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FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Disclosure of detailed information about financial instruments [line items]          
Fair value gains (losses) $ (297) $ (34) $ 110 $ 133  
Fair value          
Disclosure of detailed information about financial instruments [line items]          
Securities - FVTPL 2,110   2,110   $ 2,200
Level 1 | Fair value          
Disclosure of detailed information about financial instruments [line items]          
Securities - FVTPL 10   10   $ 17
Forward starting interest rate swap          
Disclosure of detailed information about financial instruments [line items]          
Fair value gains (losses) 0 (3) 0 (3)  
Cash flow hedges          
Disclosure of detailed information about financial instruments [line items]          
Hedge ineffectiveness recorded in earnings $ 0 $ 0 $ 0 $ 0