Group entities (Tables) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Group entities [Abstract] | |
| Ownership interest in subsidiaries | Principal place of business 2025 2024 Subsidiaries: Cameco Fuel Manufacturing Inc. Canada 100% 100% Cameco Marketing Inc. Canada 100% 100% Cameco Inc. US 100% 100% Power Resources, Inc. US 100% 100% Crow Butte Resources, Inc. US 100% 100% Cameco U.S. Holdings, Inc. US 100% 100% Cameco Australia Pty. Ltd. Australia 100% 100% Cameco Europe Ltd. Switzerland 100% 100% Associate: JV Inkai Kazakhstan 40% 40% Joint Venture: Watt New Aggregator L.P. US 49% 49% |