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Segmented information (Narrative 1) (Details) | 12 Months Ended
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Dec. 31, 2024 CAD ($) Item | Dec. 31, 2023 CAD ($)
Disclosure Of Operating Segments [Line Items] |  |
Segment information | Cameco has three reportable segments: uranium, fuel services and Westinghouse. Cameco's reportable segments are strategic business units with different products, processes and marketing strategies. |
Number of reportable segments | Item | 3 |
Uranium [Member] |  |
Disclosure Of Operating Segments [Line Items] |  |
Care and maintenance | $ | $ 51,626,000 | $ 50,615,000

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- Definition Costs directly expensed to cost of sales that are incurred to maintain production facilities during suspension of production. + References No definition available. + Details
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- Definition The description of the factors used to identify the entity's reportable segments, including the basis of organisation (for example, whether management has chosen to organise the entity around differences in products and services, geographical areas, regulatory environments or a combination of factors and whether operating segments have been aggregated). [Refer: Geographical areas [domain]; Operating segments [member]; Products and services [domain]; Reportable segments [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 22 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_22_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Details
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