OTHER LIABILITIES - NON CURRENT AND CURRENT (Actuarial assumptions of defined benefit obligation) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Bottom of range
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next five years	$ 25.9
Top of range
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next five years	$ 34.0
Mexico \| Bottom of range
Disclosure of defined benefit plans [line items]
Compensation growth rate	6.00%	6.00%
Mexico \| Top of range
Disclosure of defined benefit plans [line items]
Compensation growth rate	7.00%	7.00%
Argentina \| Bottom of range
Disclosure of defined benefit plans [line items]
Discount rate	6.00%	6.00%
Compensation growth rate	2.00%	2.00%
Argentina \| Top of range
Disclosure of defined benefit plans [line items]
Discount rate	7.00%	7.00%
Compensation growth rate	3.00%	3.00%
Discount rate
Disclosure of defined benefit plans [line items]
Percentage of reasonably possible increase in actuarial assumption	1.00%
Percentage of reasonably possible decrease in actuarial assumption	1.00%
Increase in assumption, Impact on defined benefit obligation	(10.00%)
Decrease in assumption, Impact on defined benefit obligation	12.30%
Discount rate \| Mexico
Disclosure of defined benefit plans [line items]
Discount rate	6.50%	7.25%
Compensation growth rate
Disclosure of defined benefit plans [line items]
Percentage of reasonably possible increase in actuarial assumption	1.00%
Percentage of reasonably possible decrease in actuarial assumption	1.00%
Increase in assumption, Impact on defined benefit obligation	2.60%
Decrease in assumption, Impact on defined benefit obligation	(1.80%)
Pension growth rate
Disclosure of defined benefit plans [line items]
Percentage of reasonably possible increase in actuarial assumption	1.00%
Percentage of reasonably possible decrease in actuarial assumption	1.00%
Increase in assumption, Impact on defined benefit obligation	(1.20%)
Decrease in assumption, Impact on defined benefit obligation	1.40%
Life expectancy
Disclosure of defined benefit plans [line items]
Reasonably possible increase in actuarial assumption, Life expectancy	1 year
Reasonably possible decrease in actuarial assumption, Life expectancy	1 year
Increase in assumption, Impact on defined benefit obligation	(1.30%)
Decrease in assumption, Impact on defined benefit obligation	1.60%

The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The expected rate of salary increases used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2020-01-01
-Paragraph 147
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2020-01-01
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The reasonably possible percentage of the decrease in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The reasonably possible percentage of the increase in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]]

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