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Joint operations (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure Of Joint Operations [Abstract]

Joint operations proportionate interest in net assets table

Cameco reflects its proportionate interest in these assets and liabilities as follows:
	Principal place
	of business	Ownership		2017		2016
Total assets
McArthur River	Canada	69.81%	$	1,121,509	$	1,093,254
Key Lake	Canada	83.33%		482,879		571,183
Cigar Lake	Canada	50.03%		1,531,150		1,591,489
Inkai	Kazakhstan	60.00%		230,280		290,122
			$	3,365,818	$	3,546,048
Total liabilities
McArthur River		69.81%	$	38,896	$	43,189
Key Lake		83.33%		140,214		150,847
Cigar Lake		50.03%		40,687		37,888
Inkai		60.00%		119,998		181,145
			$	339,795	$	413,069

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Disclosure of joint operations related to proportionate interest in net assets.

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