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Accounting standards	12 Months Ended
	Dec. 31, 2020
Accounting Standards [Abstract]
Accounting standards	3. Accounting standards A. Changes in accounting policy A number of amendments to existing standards became effective January 1, 2020 but they did not have an effect on the Company’s financial statements. B. New standards and interpretations not yet adopted A number of amendments to existing standards are not yet effective for the year ended December 31, 2020 and have not been applied in preparing these consolidated financial statements. Cameco does not intend to early adopt any of the amendments and does not expect them to have a material impact on its financial statements.

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No definition available.

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- Definition

The disclosure of the known or reasonably estimable information relevant to assessing the possible impact that the application of a new IFRS, that has been issued but is not yet effective, will have.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 8
-IssueDate 2020-01-01
-Paragraph 30
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=8&code=ifrs-tx-2020-en-r&anchor=para_30_b&doctype=Standard
-URIDate 2020-01-01

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