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Cash Flow Information Changes in Liabilities from Financing Activities (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Balance at beginning of the period | $ 4,150 | $ 3,575
Cash issuances | 173 | 1,153
Repayments and dividends paid | (301) | (706)
New leases | 1 | 16
Dividends declared | 90 | 107
Foreign exchange impact | (39) | 5
Other | (10) | 0
Balance at end of the period | 4,064 | 4,150
Long-term debt and lease liabilities |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Balance at beginning of the period | 3,361 | 3,212
Cash issuances | 173 | 753
Repayments and dividends paid | (214) | (620)
New leases | 1 | 16
Dividends declared | 0 | 0
Foreign exchange impact | (39) | 5
Other | (15) | (5)
Balance at end of the period | 3,267 | 3,361
Exchangeable securities (Note 25) |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Balance at beginning of the period | 730 | 326
Cash issuances | 0 | 400
Repayments and dividends paid | 0 | 0
New leases | 0 | 0
Dividends declared | 0 | 0
Foreign exchange impact | 0 | 0
Other | 5 | 4
Balance at end of the period | 735 | 730
Dividends payable (common and preferred) |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Balance at beginning of the period | 59 | 37
Cash issuances | 0 | 0
Repayments and dividends paid | (87) | (86)
New leases | 0 | 0
Dividends declared | 90 | 107
Foreign exchange impact | 0 | 0
Other | 0 | 1
Balance at end of the period | $ 62 | $ 59

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- Definition The increase (decrease) in liabilities arising from financing activities resulting from the effect of changes in foreign exchange rates. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44B_c&doctype=Standard -URIDate 2021-03-24 + 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 2021-01-01 -Paragraph 44B -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44B_e&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase in liabilities arising from financing activities resulting from new leases. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Section A Statement of cash flows for an entity other than a financial institution -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&doctype=Illustrative%20Examples&dita_xref=IAS07_IE_A__IAS07_IE_A_TI -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44B -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44B&doctype=Standard -URIDate 2021-03-24 + Details
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