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Supplemental Disclosure of Cash Flow Information - Liabilities Arising From Financing Activities (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Liabilities arising from financing activities, beginning balance | $ 12,985 | $ 16,159 |
Changes from financing cash flows: |  |  |
Issue (repayment) of long-term debt | (416) | (4,010) |
Proceeds on settlement of cross currency swaps | 0 | 69 | $ 0
Payment of lease liabilities | (285) | (232) | (209)
Non-cash changes: |  |  |
Lease additions | 317 | 182 |
Changes in foreign exchange and fair value | (247) | 817 |
Liabilities arising from financing activities, ending balance | 12,354 | 12,985 | 16,159
Long-term debt |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Liabilities arising from financing activities, beginning balance | 11,445 | 14,694 |
Changes from financing cash flows: |  |  |
Issue (repayment) of long-term debt | (416) | (4,010) |
Non-cash changes: |  |  |
Changes in foreign exchange and fair value | (230) | 761 |
Liabilities arising from financing activities, ending balance | 10,799 | 11,445 | 14,694
Cash flow hedges on US dollar debt securities |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Liabilities arising from financing activities, beginning balance | 0 | (119) |
Changes from financing cash flows: |  |  |
Proceeds on settlement of cross currency swaps |  | 69 |
Non-cash changes: |  |  |
Changes in foreign exchange and fair value | 0 | 50 |
Liabilities arising from financing activities, ending balance | 0 | 0 | (119)
Lease liabilities |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Liabilities arising from financing activities, beginning balance | 1,540 | 1,584 |
Changes from financing cash flows: |  |  |
Payment of lease liabilities | (285) | (232) |
Non-cash changes: |  |  |
Lease additions | 317 | 182 |
Changes in foreign exchange and fair value | (17) | 6 |
Liabilities arising from financing activities, ending balance | $ 1,555 | $ 1,540 | $ 1,584

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- Definition Proceeds From Settlement Of Cross Currency Swaps, Classified As Financing Activities + References No definition available. + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The increase (decrease) in liabilities arising from financing activities resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Paragraph 44B -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_44B_e&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of liabilities for which cash flows were, or future cash flows will be, classified in the statement of cash flows as cash flows from financing activities. [Refer: Cash flows from (used in) financing activities; Liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Paragraph 44D -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_44D&doctype=Standard -URIDate 2023-03-23 + Details
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