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Right of Use Assets - Reconciliation of Changes of the Right of Use Assets (Details) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | $ 126 | $ 95
Additions | 5 | 40
Depreciation | (12) | (11)
Change in foreign exchange rates | (2) | 2
Right-of-use assets, ending balance | 117 | 126
Land |  |
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | 102 | 68
Additions | 2 | 36
Depreciation | (5) | (4)
Change in foreign exchange rates | (2) | 2
Right-of-use assets, ending balance | 97 | 102
Buildings |  |
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | 15 | 20
Additions | 2 | 0
Depreciation | (5) | (5)
Change in foreign exchange rates | 0 | 0
Right-of-use assets, ending balance | 12 | 15
Vehicles |  |
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | 2 | 1
Additions | 1 | 1
Depreciation | 0 | 0
Change in foreign exchange rates | 0 | 0
Right-of-use assets, ending balance | 3 | 2
Equipment |  |
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | 7 | 6
Additions | 0 | 3
Depreciation | (2) | (2)
Change in foreign exchange rates | 0 | 0
Right-of-use assets, ending balance | $ 5 | $ 7

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- Definition The amount of additions to right-of-use assets. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_h&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in intangible assets other than goodwill 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: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2023-01-01 -Paragraph 118 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2023-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term that do not meet the definition of investment property. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_j&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_47_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition Right-Of-Use Assets + References No definition available. + Details
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