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Segments Disclosures - Geographic Information (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of geographical areas [line items] |  |  |
Total revenue from contracts with customers | $ 3,355 | $ 2,976 | $ 2,721
Property, plant and equipment | 5,714 | 5,556 | 5,320
Right-of-use assets | 117 | 126 | 95
Intangible assets other than goodwill | 223 | 252 | 256
Total long-term other assets | 179 | 160 |
Canada |  |  |
Disclosure of geographical areas [line items] |  |  |
Total revenue from contracts with customers | 2,218 | 1,905 | 1,854
Property, plant and equipment | 3,578 | 3,817 |
Right-of-use assets | 43 | 49 |
Intangible assets other than goodwill | 108 | 123 |
Total long-term other assets | 68 | 62 |
US |  |  |
Disclosure of geographical areas [line items] |  |  |
Total revenue from contracts with customers | 987 | 940 | 731
Property, plant and equipment | 1,749 | 1,307 |
Right-of-use assets | 71 | 74 |
Intangible assets other than goodwill | 88 | 101 |
Total long-term other assets | 42 | 34 |
Australia |  |  |
Disclosure of geographical areas [line items] |  |  |
Total revenue from contracts with customers | 150 | 131 | $ 136
Property, plant and equipment | 387 | 432 |
Right-of-use assets | 3 | 3 |
Intangible assets other than goodwill | 27 | 28 |
Total long-term other assets | $ 69 | $ 64 |

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- Definition The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2023-01-01 -Paragraph 118 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2023-en-r&anchor=para_118_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2023-01-01 -Paragraph 114 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_114&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2023-01-01 -Paragraph 113 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_113_a&doctype=Standard -URIDate 2023-03-23 + Details
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