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DERIVATIVE FINANCIAL INSTRUMENTS - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about hedging instruments [line items]
Notional amount	$ 447	$ 434
Financial assets at fair value through profit or loss, category
Disclosure of detailed information about hedging instruments [line items]
Notional amount	172	167
Interest rate swaps, cross currency interest rate swaps and other
Disclosure of detailed information about hedging instruments [line items]
Notional amount	275	267
Inflation linked swap contract \| Financial assets at fair value through profit or loss, category
Disclosure of detailed information about hedging instruments [line items]
Notional amount	$ 172	$ 167