Other Expense (Income) (Tables)

12 Months Ended

Dec. 31, 2019

Other Income and Expenses [Abstract]

Other expense (income)

(in millions of Canadian dollars)	2019			2018		2017
Foreign exchange (gain) loss on debt and lease liabilities	$	(94	)	$	168	$	(186	)
Other foreign exchange (gains) losses	(4		)	3		(7		)
Insurance recovery of legal settlement	—			—		(10		)
Charge on hedge roll and de-designation	—			—		13
Other	9			3		12
Other (income) expense	$	(89	)	$	174	$	(178	)