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Lease Assets - Schedule of Right-of-use Assets (Details) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning balance | $ 470.4 |
Depreciation | (121.7) | $ (122.1)
Ending balance | 442.9 | 470.4
Lease assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning balance | 470.4 | 476.5
Additions | 48.3 | 81.1
Acquisitions | 15.0 | 8.5
Depreciation | (121.7) | (122.1)
Modifications | 33.6 | 6.5
Reversal of impairment, net | 1.6 | 4.8
Foreign exchange | (4.3) | 15.1
Ending balance | 442.9 | 470.4
Building | Lease assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning balance | 455.0 | 459.7
Additions | 45.4 | 76.4
Acquisitions | 14.6 | 8.3
Depreciation | (114.7) | (115.9)
Modifications | 33.3 | 6.7
Reversal of impairment, net | 1.6 | 4.8
Foreign exchange | (4.2) | 15.0
Ending balance | 431.0 | 455.0
Other | Lease assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning balance | 15.4 | 16.8
Additions | 2.9 | 4.7
Acquisitions | 0.4 | 0.2
Depreciation | (7.0) | (6.2)
Modifications | 0.3 | (0.2)
Reversal of impairment, net | 0.0 | 0.0
Foreign exchange | (0.1) | 0.1
Ending balance | $ 11.9 | $ 15.4

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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 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 Acquisitions through business combinations, right-of-use assets + References No definition available. + Details
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- Definition Impairment loss (reversal of impairment loss) recognised in profit or loss, right-of-use assets + References No definition available. + Details
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