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PROPERTY, PLANT AND EQUIPMENT - Disclosure of property, plant and equipment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | $ 2,598.0 |
Reclassification to assets held for sale |  | $ (1,261.4)
Balance, end of the year | $ 3,496.5 | $ 2,598.0
Unincorporated Joint Venture |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Proportion of voting rights held in joint venture | 70.00% |
Unincorporated Joint Venture | Côté Gold [Member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Proportion of voting rights held in joint venture | 70.00% | 70.00%
Construction in progress |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | $ 1,563.9 |
Reclassification to assets held for sale |  | $ 0.0
Balance, end of the year | 2,409.4 | 1,563.9
Mining properties |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | 543.7 |
Reclassification to assets held for sale |  | (749.1)
Balance, end of the year | 599.9 | 543.7
Plant and equipment |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | 419.3 |
Reclassification to assets held for sale |  | (461.4)
Balance, end of the year | 384.7 | 419.3
Right-of-use assets |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | 71.1 |
Reclassification to assets held for sale |  | (50.9)
Balance, end of the year | 102.5 | 71.1
Gross carrying amount |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | 5,654.3 | 6,470.1
Additions | 1,141.3 | 1,036.7
Changes in asset retirement obligations | 36.2 | (22.4)
Changes to Right-of-use assets | (29.4) |
Disposals | (17.6) | (54.4)
Transfers within property, plant and equipment | 0.0 | 0.0
Reclassification to assets held for sale |  | (1,775.7)
Transfers from exploration & evaluation assets | (11.1) |
Balance, end of the year | 6,795.9 | 5,654.3
Gross carrying amount | Construction in progress |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | 1,563.9 | 1,078.6
Additions | 866.5 | 638.7
Changes in asset retirement obligations | 0.0 | 0.0
Changes to Right-of-use assets | (4.0) |
Disposals | (5.5) | 0.0
Transfers within property, plant and equipment | (11.5) | (73.8)
Reclassification to assets held for sale |  | (79.6)
Transfers from exploration & evaluation assets | 0.0 |
Balance, end of the year | 2,409.4 | 1,563.9
Gross carrying amount | Mining properties |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | 2,506.8 | 3,305.0
Additions | 138.9 | 221.7
Changes in asset retirement obligations | 36.2 | (22.4)
Changes to Right-of-use assets | 0.0 |
Disposals | 0.0 | 0.0
Transfers within property, plant and equipment | (0.1) | 25.1
Reclassification to assets held for sale |  | (1,022.6)
Transfers from exploration & evaluation assets | (11.1) |
Balance, end of the year | 2,692.9 | 2,506.8
Gross carrying amount | Plant and equipment |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | 1,498.2 | 1,977.9
Additions | 56.2 | 100.8
Changes in asset retirement obligations | 0.0 | 0.0
Changes to Right-of-use assets | 0.0 |
Disposals | (11.6) | (49.6)
Transfers within property, plant and equipment | 11.8 | 52.6
Reclassification to assets held for sale |  | (583.5)
Transfers from exploration & evaluation assets | 0.0 |
Balance, end of the year | 1,554.6 | 1,498.2
Gross carrying amount | Right-of-use assets |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | 85.4 | 108.6
Additions | 79.7 | 75.5
Changes in asset retirement obligations | 0.0 | 0.0
Changes to Right-of-use assets | (25.4) |
Disposals | (0.5) | (4.8)
Transfers within property, plant and equipment | (0.2) | (3.9)
Reclassification to assets held for sale |  | (90.0)
Transfers from exploration & evaluation assets | 0.0 |
Balance, end of the year | 139.0 | 85.4
Accumulated depreciation, amortization and impairment |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | (3,056.3) | (3,882.2)
Depreciation expense | 254.9 | 326.6
Disposals | 11.8 | 51.1
Impairment charge |  | 160.0
Transfers within property, plant and equipment | 0.0 | 0.0
Balance, end of the year | (3,299.4) | (3,056.3)
Accumulated depreciation, amortization and impairment | Construction in progress |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | 0.0 | 0.0
Depreciation expense | 0.0 | 0.0
Disposals | 0.0 | 0.0
Impairment charge |  | 0.0
Transfers within property, plant and equipment | 0.0 | 0.0
Balance, end of the year | 0.0 | 0.0
Accumulated depreciation, amortization and impairment | Mining properties |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | (1,963.1) | (2,419.3)
Depreciation expense | 141.4 | 183.8
Disposals | 0.0 | 0.0
Impairment charge |  | 109.1
Transfers within property, plant and equipment | (11.5) | 0.0
Balance, end of the year | (2,093.0) | (1,963.1)
Accumulated depreciation, amortization and impairment | Plant and equipment |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | (1,078.9) | (1,418.6)
Depreciation expense | 90.8 | 126.9
Disposals | 11.3 | 46.7
Impairment charge |  | 39.5
Transfers within property, plant and equipment | 11.5 | 2.0
Balance, end of the year | (1,169.9) | (1,078.9)
Accumulated depreciation, amortization and impairment | Right-of-use assets |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of the year | (14.3) | (44.3)
Depreciation expense | 22.7 | 15.9
Disposals | 0.5 | 4.4
Impairment charge |  | 11.4
Transfers within property, plant and equipment | 0.0 | (2.0)
Balance, end of the year | $ (36.5) | $ (14.3)

X
- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The decrease in property, plant and equipment through classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Property, plant and equipment; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 75 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_75_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_v&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_98_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause ix -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_ix&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from transfers and changes that the entity does not separately disclose in the same statement or note. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_a&doctype=Standard -URIDate 2023-03-23 + Details
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