Finance Income and Finance Expense (Tables)

12 Months Ended

Dec. 31, 2020

Analysis of income and expense [abstract]

Schedule of Finance Income and Finance Expense

Finance Income and Finance Expense

(CAD$ in millions)	2020		2019
Finance income
Investment income	$	10	$	48
Total finance income	$	10	$	48
Finance expense
Debt interest	$	275	$	276
Interest on advances from SMM/SC	42		41
Interest on lease liabilities (Note 21(c))	37		39
Letters of credit and standby fees	48		51
Net interest expense on retirement benefit plans	5		7
Accretion on decommissioning and restoration provisions (Note 24(a))	114		112
Other	8		15
	529		541
Less capitalized borrowing costs	(251)		(275)
Total finance expense	$	278	$	266