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Debt and Credit Facilities - Credit Facilities (Details) - CAD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Debt and Credit Facilities |  |
Credit facilities available | $ 7,227 |
Credit facilities supporting outstanding commercial paper | (2,807) |
Credit facilities supporting standby letters of credit | (1,148) |
Total unutilized credit facilities | 3,272 |
Available lines of credit for liquidity purposes | 2,900 | $ 4,247
Fully revolving and expires in 2026 |  |
Debt and Credit Facilities |  |
Credit facilities available | 3,000 |
Fully revolving and expires in 2025 |  |
Debt and Credit Facilities |  |
Credit facilities available | 2,707 |
Can be terminated at any time at the option of the lenders |  |
Debt and Credit Facilities |  |
Credit facilities available | $ 1,520 |

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- Definition The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 50 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_50_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References No definition available. + Details
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- Definition The amount outstanding for credit facilities supporting commercial paper. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility for liquidity purposes. + References No definition available. + Details
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