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Right of Use Assets - Reconciliation of Changes of the Right of Use Assets (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | $ 95 | $ 141
Additions | 40 | 1
Acquisitions |  | 13
Depreciation | (11) | (11)
Disposal of assets |  | (41)
Transfers |  | (8)
Change in foreign exchange rates | 2 |
Right-of-use assets, ending balance | 126 | 95
Land |  |
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | 68 | 58
Additions | 36 | 0
Acquisitions |  | 13
Depreciation | (4) | (3)
Disposal of assets |  | 0
Transfers |  | 0
Change in foreign exchange rates | 2 |
Right-of-use assets, ending balance | 102 | 68
Buildings |  |
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | 20 | 24
Additions | 0 | 1
Acquisitions |  | 0
Depreciation | (5) | (5)
Disposal of assets |  | 0
Transfers |  | 0
Change in foreign exchange rates | 0 |
Right-of-use assets, ending balance | 15 | 20
Vehicles |  |
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | 1 | 1
Additions | 1 | 0
Acquisitions |  | 0
Depreciation | 0 | 0
Disposal of assets |  | 0
Transfers |  | 0
Change in foreign exchange rates | 0 |
Right-of-use assets, ending balance | 2 | 1
Equipment |  |
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | 6 | 16
Additions | 3 | 0
Acquisitions |  | 0
Depreciation | (2) | (2)
Disposal of assets |  | 0
Transfers |  | (8)
Change in foreign exchange rates | 0 |
Right-of-use assets, ending balance | 7 | 6
Pipeline |  |
Right-Of-Use Assets [Roll Forward] |  |
Right-of-use assets, beginning balance | 0 | 42
Additions | 0 | 0
Acquisitions |  | 0
Depreciation | 0 | (1)
Disposal of assets |  | (41)
Transfers |  | 0
Change in foreign exchange rates | 0 |
Right-of-use assets, ending balance | $ 0 | $ 0

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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 2022-03-24 -Paragraph 53 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_h&doctype=Standard -URIDate 2022-03-24 + 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 2022-03-24 -Paragraph 53 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_a&doctype=Standard -URIDate 2022-03-24 + 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 2022-03-24 -Paragraph 118 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2022-03-24 + 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. 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 2022-03-24 -Paragraph 53 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_j&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The increase (decrease) in the revaluation surplus that relates to right-of-use assets. [Refer: Revaluation surplus; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 57 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_57&doctype=Standard -URIDate 2022-03-24 + Details
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