Goodwill (Tables)

12 Months Ended

Dec. 31, 2020

Intangible Assets [Abstract]

Schedule of Goodwill

(CAD$ in millions)	Steelmaking Coal Operations		Quebrada Blanca		Total
January 1, 2019	$	702	$	419	$	1,121
Changes in foreign exchange rates	—		(20)		(20)
December 31, 2019	$	702	$	399	$	1,101
Changes in foreign exchange rates	—		(8)		(8)
December 31, 2020	$	702	$	391	$	1,093