Provisions and Other Liabilities (Tables)

12 Months Ended

Dec. 31, 2022

Other Provisions, Contingent Liabilities And Contingent Assets [Abstract]

Summary of Provisions and Other Liabilities

(CAD$ in millions)	December 31, 2022		December 31, 2021
Decommissioning and restoration provisions and other provisions (a)	$	2,805	$	3,813
Obligation to Neptune Bulk Terminals (b)	189		170
Derivative liabilities (net of current portion of $10 (2021 – $9))	26		51
ENAMI preferential dividend liability (Note 11(a))	286		78
QB2 variable consideration to IMSA (Note 11(a))	114		98
Other IMSA payable (net of current portion of $68 (2021 – $nil))	—		61
Other liabilities	97		83
	$	3,517	$	4,354

a) Decommissioning and Restoration Provisions and Other Provisions

Summary of Movements in Provisions

The following table summarizes the movements in provisions for the year ended December 31, 2022:

(CAD$ in millions)	Decommissioning and Restoration Provisions		Other Provisions		Total
As at January 1, 2022	$	3,725	$	298	$	4,023
Settled during the year	(131)		(34)		(165)
Change in discount rate	(1,493)		—		(1,493)
Change in amount and timing of cash flows	688		63		751
Accretion	143		6		149
Transfer to liabilities associated with assets held for sale	(153)		—		(153)
Changes in foreign exchange rates	41		13		54
As at December 31, 2022	2,820		346		3,166
Less current portion of provisions (Note 18)	(258)		(103)		(361)
Non-current provisions	$	2,562	$	243	$	2,805