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FAIR VALUE MEASUREMENT - Assets (liabilities) measured at fair value on recurring basis (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
FAIR VALUE MEASUREMENT |  |
Equity investments at FVOCI | $ 54.7 | $ 116.9
Assets transfer out of Level 1 into Level 2 | 0.0 |
Assets transfer out of Level 2 into Level 1 | 0.0 |
Liabilities transfer out of Level 1 into Level 2 | 0.0 |
Liabilities transfer out of Level 2 into Level 1 | 0.0 |
Assets transfers into Level 3 fair value measurements | 0.0 |
Assets transfers out of Level 3 fair value measurements | 0.0 |
Liabilities transfers into Level 3 fair value measurements | 0.0 |
Liabilities transfers out of Level 3 fair value measurements | 0.0 |
Recurring basis |  |
FAIR VALUE MEASUREMENT |  |
Equity investments at FVOCI | 54.7 |
Financial assets | 70.0 |
Recurring basis | Foreign currency forward and collar contracts |  |
FAIR VALUE MEASUREMENT |  |
Financial assets | 7.4 |
Recurring basis | Energy swap contracts |  |
FAIR VALUE MEASUREMENT |  |
Financial assets | 1.0 |
Recurring basis | Other |  |
FAIR VALUE MEASUREMENT |  |
Financial assets | 6.9 |
Recurring basis | Level 1 |  |
FAIR VALUE MEASUREMENT |  |
Equity investments at FVOCI | 54.7 |
Financial assets | 54.7 |
Recurring basis | Level 2 |  |
FAIR VALUE MEASUREMENT |  |
Financial assets | 15.3 |
Recurring basis | Level 2 | Foreign currency forward and collar contracts |  |
FAIR VALUE MEASUREMENT |  |
Financial assets | 7.4 |
Recurring basis | Level 2 | Energy swap contracts |  |
FAIR VALUE MEASUREMENT |  |
Financial assets | 1.0 |
Recurring basis | Level 2 | Other |  |
FAIR VALUE MEASUREMENT |  |
Financial assets | $ 6.9 |

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- Definition The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_25&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_35H&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 35M -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_35M&doctype=Standard -URIDate 2023-03-23 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 35N -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_35N&doctype=Standard -URIDate 2023-03-23 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 35I -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_35I&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of non-current investments in equity instruments that the entity has designated at fair value through other comprehensive income. [Refer: Investments in equity instruments designated at fair value through other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 8 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_8_h&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of transfers out of Level 1 and into Level 2 of the fair value hierarchy of assets held at the end of the reporting period. [Refer: Level 1 of fair value hierarchy [member]; Level 2 of fair value hierarchy [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2023-01-01 -Paragraph 93 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2023-en-r&anchor=para_93_c&doctype=Standard -URIDate 2023-03-23 + Details
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