Net Interest Expense

12 Months Ended

Dec. 31, 2020

Interest Income (Expense), Net [Abstract]

Net Interest Expense

Net interest expense

(in millions of Canadian dollars)	2020		2019		2018
Interest cost	$	478	$	471	$	475
Interest capitalized to Properties	(16)		(17)		(20)
Interest expense	462		454		455
Interest income	(4)		(6)		(2)
Net interest expense	$	458	$	448	$	453

Interest expense includes interest on finance leases of $11 million for the year ended December 31, 2020 (2019 – $11 million; 2018 – $11 million).