Finance Income and Finance Expense (Tables)

12 Months Ended

Dec. 31, 2021

Analysis of income and expense [abstract]

Schedule of Finance Income and Finance Expense

(CAD$ in millions)	2021		2020
Finance income
Investment income	$	5	$	10
Total finance income	$	5	$	10
Finance expense
Debt interest	$	298	$	275
Interest on advances from SMM/SC	37		42
Interest on lease liabilities (Note 19(c))	35		37
Letters of credit and standby fees	44		48
Net interest expense on retirement benefit plans	5		5
Accretion on decommissioning and restoration provisions (Note 23(a))	151		114
Other	15		8
	585		529
Less capitalized borrowing costs (Note 15)	(370)		(251)
Total finance expense	$	215	$	278