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Financing Expenses (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Financing Expenses |  |
Interest on debt | $ 815 | $ 834
Interest on lease liabilities | 167 | 161
Capitalized interest at 5.2% ( 2021 - 5.0%) | $ (168) | $ (144)
Interest rate | 5.20% | 5.00%
Interest expense | $ 814 | $ 851
Interest on partnership liability | 51 | 51
Interest on pension and other post-retirement benefits | 41 | 59
Accretion | 316 | 304
Foreign exchange loss (gain) on U.S. dollar denominated debt | 729 | (113)
Operational foreign exchange and other | 28 | 23
Loss on extinguishment of long-term debt | 32 | 80
Financing Expenses | $ 2,011 | $ 1,255

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- Definition The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Financial instruments, class [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2022-03-24 -Paragraph 52 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=21&code=ifrs-tx-2022-en-r&anchor=para_52_a&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 35 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_35&doctype=Standard -URIDate 2022-03-24 + Details
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