Expenses by Nature (Tables)

12 Months Ended

Dec. 31, 2021

Analysis of income and expense [abstract]

Schedule of Expenses by Nature

(CAD$ in millions)	2021		2020
Employment-related costs:
Wages and salaries	$	1,040	$	971
Employee benefits and other wage-related costs	272		272
Bonus payments	266		128
Post-employment benefits and pension costs	154		124
	1,732		1,495
Transportation	1,519		1,378
Depreciation and amortization	1,583		1,510
Raw material purchases	1,077		715
Fuel and energy	842		697
Operating supplies consumed	658		620
Maintenance and repair supplies	735		648
Contractors and consultants	811		648
Overhead costs	414		268
Royalties	373		266
Other operating costs	4		62
	9,748		8,307
Adjusted for:
Capitalized production stripping costs	(667)		(499)
Change in inventory	(313)		81
Total cost of sales, general and administration,    exploration and research and innovation expenses	$	8,768	$	7,889