FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Vertical fall in cost of total fuel consumption	$ 121,800,000
Vertical rise in cost of total fuel consumption		$ 114,200,000
Derivative net of premiums	6,200,000
Liquidity risk [member]
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Financial instruments designated as hedging instruments, at fair value		15,800,000
Liquid funds balance	1,459,000,000	1,404,000,000
Undrawn committed credit line	600,000,000	600,000,000
Derivative margin guarantees for cash and stand-by letters of credit	23,700,000	$ 5.0
Foreign Exchange Rate Risk [Member]
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Financial instruments designated as hedging instruments, at fair value	$ 40,000
Percentage of fixed to fluctuations in interest rate	10.00%
Interest rate risk [member]
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Percentage of fixed to fluctuations in interest rate	62.00%	60.00%
Fair Value Of Fuel Price Derivatives [Member] \| Fuel-Price Risk [Member]
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Gains (losses) on hedging instrument, fair value hedges	$ 1,900,000
Foreign Forward Instrument [Member] \| Currency risk [member]
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Gains (losses) on hedging instrument, fair value hedges		$ 18,300,000
Interest Rate Derivative Contracts [Member] \| Interest rate risk [member]
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Financial instruments designated as hedging instruments, at fair value	2,600,000	2.2
Fuel options [Member] \| Fuel-Price Risk [Member]
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Gains (losses) on hedging instrument, fair value hedges	23,100,000	29,700,000
Financial instruments designated as hedging instruments, at fair value	48,500,000
Foreign Forward Instrument [Member]
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Derivatives to BRL	15,000,000
Currency swap contract [member]
FINANCIAL RISK MANAGEMENT (Details) - (Details Narrative) [Line Items]
Financial instruments designated as hedging instruments, at fair value	$ 22,700,000	$ 15,100,000
Percentage of fixed to fluctuations in interest rate	10.00%

The fair value of financial instruments designated as hedging instruments. Hedging instruments are designated derivatives or (for a hedge of the risk of changes in foreign currency exchange rates only) designated non-derivative financial assets or non-derivative financial liabilities whose fair value or cash flows are expected to offset changes in the fair value or cash flows of a designated hedged item. [Refer: At fair value [member]; Derivatives [member]; Derivative financial assets; Derivative financial liabilities; Financial instruments, class [member]; Financial assets; Financial liabilities]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 22
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_22_b&doctype=Standard&book=b
-URIDate 2019-03-27

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- Definition

The gains (losses) on hedging instruments in fair value hedges. [Refer: Fair value hedges [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 24
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_24_a_i&doctype=Standard&book=b
-URIDate 2019-03-27

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- Definition

It represents the derivative margin guarantees for cash and stand by letters of credit.

+ References

No definition available.

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- Definition

Derivative net of premiums.

+ References

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- Definition

It represents the amount of derivative contracts.

+ References

No definition available.

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- References

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It represents the liquid funds balance.

+ References

No definition available.

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- Definition

It represents the percentage of fixed to fluctuations in interest rate.

+ References

No definition available.

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It represents the undrawn committed credit line.

+ References

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- Definition

It represents the amount of vertical fall in cost of total fuel consumption.

+ References

No definition available.

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- Definition

It represents the amount of vertical rise in cost of total fuel consumption.

+ References

No definition available.

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