Expenses by Nature (Tables)

12 Months Ended

Dec. 31, 2019

Analysis of income and expense [abstract]

Schedule of Expenses by Nature

Expenses by Nature

(CAD$ in millions)	2019			2018
Employment-related costs:
Wages and salaries	$	1,057		$	1,005
Employee benefits and other wage-related costs	280			247
Bonus payments	207			191
Post-employment benefits and pension costs	105			112
	1,649			1,555
Transportation	1,476			1,408
Depreciation and amortization	1,619			1,483
Raw material purchases	974			914
Fuel and energy	881			830
Operating supplies consumed	743			640
Maintenance and repair supplies	742			775
Contractors and consultants	768			738
Overhead costs	277			365
Royalties	343			370
Other operating costs	45			15
	9,517			9,093
Adjusted for:
Capitalized production stripping costs	(680		)	(707		)
Change in inventory	52			(197		)
Total cost of sales, general and administration, exploration and research and innovation expenses	$	8,889		$	8,189