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Property, Plant and Equipment - Summary of Property Plant and Equipment (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | $ 40,095 | $ 37,382
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 37,382 | 33,578
Additions | 6,593 | 4,843
Disposals | (30) | (24)
Impairment reversal |  | 215
Asset impairment | (1,243) |
Depreciation and amortization | (1,861) | (1,869)
Transfers between classifications | 0 | 0
Decommissioning and restoration provisions change in estimate | (888) | 289
Capitalized borrowing costs | 489 | 370
Transfers to assets held for sale | (1,552) |
Changes in foreign exchange rates | 1,205 | (20)
Closing net book value | 40,095 | 37,382
Net book value | 40,095 | 37,382
Exploration and Evaluation |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 895 | 944
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 944 | 903
Additions | 102 | 45
Disposals | 0 | 0
Impairment reversal |  | 0
Asset impairment | (37) |
Depreciation and amortization | 0 | 0
Transfers between classifications | 0 | 0
Decommissioning and restoration provisions change in estimate | 0 | 0
Capitalized borrowing costs | 0 | 0
Transfers to assets held for sale | (142) |
Changes in foreign exchange rates | 28 | (4)
Closing net book value | 895 | 944
Mineral Properties |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 13,290 | 14,681
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 14,681 | 14,535
Additions | 0 | 0
Disposals | 0 | 0
Impairment reversal |  | 215
Asset impairment | (247) |
Depreciation and amortization | (325) | (373)
Transfers between classifications | 104 | (50)
Decommissioning and restoration provisions change in estimate | (743) | 250
Capitalized borrowing costs | 131 | 115
Transfers to assets held for sale | (546) |
Changes in foreign exchange rates | 235 | (11)
Closing net book value | 13,290 | 14,681
Land, Buildings, Plant and Equipment |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 8,349 | 9,138
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 9,138 | 7,577
Additions | 389 | 181
Disposals | (25) | (6)
Impairment reversal |  | 0
Asset impairment | (959) |
Depreciation and amortization | (906) | (802)
Transfers between classifications | 1,420 | 2,162
Decommissioning and restoration provisions change in estimate | (145) | 39
Capitalized borrowing costs | 0 | 0
Transfers to assets held for sale | (735) |
Changes in foreign exchange rates | 172 | (13)
Closing net book value | 8,349 | 9,138
Capitalized Production Stripping Costs |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 3,248 | 2,688
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 2,688 | 2,644
Additions | 1,138 | 740
Disposals | 0 | 0
Impairment reversal |  | 0
Asset impairment | 0 |
Depreciation and amortization | (630) | (694)
Transfers between classifications | 0 | 0
Decommissioning and restoration provisions change in estimate | 0 | 0
Capitalized borrowing costs | 0 | 0
Transfers to assets held for sale | 0 |
Changes in foreign exchange rates | 52 | (2)
Closing net book value | 3,248 | 2,688
Construction In Progress |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 14,313 | 9,931
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 9,931 | 7,919
Additions | 4,964 | 3,877
Disposals | (5) | (18)
Impairment reversal |  | 0
Asset impairment | 0 |
Depreciation and amortization | 0 | 0
Transfers between classifications | (1,524) | (2,112)
Decommissioning and restoration provisions change in estimate | 0 | 0
Capitalized borrowing costs | 358 | 255
Transfers to assets held for sale | (129) |
Changes in foreign exchange rates | 718 | 10
Closing net book value | 14,313 | 9,931
Cost |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 62,735 | 58,287
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 58,287 | 52,900
Closing net book value | 62,735 | 58,287
Cost | Exploration and Evaluation |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 895 | 944
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 944 | 903
Closing net book value | 895 | 944
Cost | Mineral Properties |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 20,364 | 21,362
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 21,362 | 20,758
Closing net book value | 20,364 | 21,362
Cost | Land, Buildings, Plant and Equipment |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 18,567 | 18,716
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 18,716 | 16,722
Closing net book value | 18,567 | 18,716
Cost | Capitalized Production Stripping Costs |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 8,596 | 7,334
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 7,334 | 6,598
Closing net book value | 8,596 | 7,334
Cost | Construction In Progress |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 14,313 | 9,931
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 9,931 | 7,919
Closing net book value | 14,313 | 9,931
Accumulated depreciation |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | (22,640) | (20,905)
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | (20,905) | (19,322)
Closing net book value | (22,640) | (20,905)
Accumulated depreciation | Exploration and Evaluation |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 0 | 0
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 0 | 0
Closing net book value | 0 | 0
Accumulated depreciation | Mineral Properties |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | (7,074) | (6,681)
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | (6,681) | (6,223)
Closing net book value | (7,074) | (6,681)
Accumulated depreciation | Land, Buildings, Plant and Equipment |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | (10,218) | (9,578)
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | (9,578) | (9,145)
Closing net book value | (10,218) | (9,578)
Accumulated depreciation | Capitalized Production Stripping Costs |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | (5,348) | (4,646)
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | (4,646) | (3,954)
Closing net book value | (5,348) | (4,646)
Accumulated depreciation | Construction In Progress |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Net book value | 0 | 0
Reconciliation of changes in property, plant and equipment [abstract] |  |
Opening net book value | 0 | 0
Closing net book value | $ 0 | $ 0

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 2022-03-24 -Paragraph 73 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2022-03-24 + 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 2022-03-24 -Paragraph 73 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2022-03-24 -Paragraph 75 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_75_a&doctype=Standard -URIDate 2022-03-24 + 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 2022-03-24 -Paragraph 73 -Subparagraph e -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2022-03-24 + 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 2022-03-24 -Paragraph 73 -Subparagraph e -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_73_e_v&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_98_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2022-03-24 -Paragraph 73 -Subparagraph e -Clause viii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_73_e_viii&doctype=Standard -URIDate 2022-03-24 + Details
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