XML 94 R35.htm IDEA: XBRL DOCUMENT
v3.19.1

Group entities | 12 Months Ended
--- | ---
Dec. 31, 2018
Disclosure Of Significant Investments In Subsidiaries [Abstract] |
Group entities | 29. Group entities The following are the principal subsidiaries and associates of the Company:
|  | Principal place | Ownership interest
|  | of business | 2018 | 2017
Subsidiaries: |  |  |
| Cameco Fuel Manufacturing Inc. | Canada | 100% | 100%
| Cameco Marketing Inc. | Canada | 100% | -
| Cameco Inc. | US | 100% | 100%
| Power Resources, Inc. | US | 100% | 100%
| Crow Butte Resources, Inc. | US | 100% | 100%
| NUKEM, Inc. | US | 100% | -
| NUKEM Investments GmbH | Germany | 100% | 100%
| Cameco Australia Pty. Ltd. | Australia | 100% | 100%
| Cameco Europe Ltd. | Switzerland | 100% | 100%
Associates: |  |  |
| JV Inkai | Kazakhstan | 40% | 60%

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of subsidiaries. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2018-01-01 -Paragraph 17 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_17_b&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2018-01-01 -Paragraph 16 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_16_b&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph B4 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_B4_a&doctype=Appendix&seq=2 -URIDate 2018-03-16 + Details
Name: | ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration