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DERIVATIVE FINANCIAL INSTRUMENTS - Additional Information (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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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

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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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- Details
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