Post-employment benefits (Tables)

3 Months Ended

Jan. 31, 2025

Text Block [Abstract]

Summary of Defined Benefit Plan Expense

Defined benefit plan expense

$ millions, for the three months ended	2025 Jan. 31			2024 Oct. 31			2024 Jan. 31			2025 Jan. 31		2024 Oct. 31		2024 Jan. 31
	Pension plans									Other post-employment plans
Current service cost	$	57		$	48		$	48		$	1	$	2	$	1
Net interest (income) expense		(20	)		(16	)		(16	)		5		6		6
Interest expense on effect of asset ceiling		1			–			–			–		–		–
Plan administration costs		2			2			2			–		–		–
Net defined benefit plan expense (income) recognized in net income	$	40		$	34		$	34		$	6	$	8	$	7

Summary of Defined Contributions Plan Expense

Defined contribution plan expense

$ millions, for the three months ended	2025 Jan. 31		2024 Oct. 31		2024 Jan. 31
Defined contribution pension plans	$	20	$	17	$	22
Government pension plans (1)		56		50		43
Total defined contribution plan expense	$	76	$	67	$	65

(1) Includes Canada Pension Plan, Quebec Pension Plan, and U.S. Federal Insurance Contributions Act.

Summary of Net Remeasurement Gains (Losses) Recognized In OCI for Defined Benefit Plans

Remeasurement of employee defined benefit plans(1)

$ millions, for the three months ended	2025 Jan. 31			2024 Oct. 31			2024 Jan. 31			2025 Jan. 31			2024 Oct. 31		2024 Jan. 31
	Pension plans									Other post-employment plans
Net actuarial gains (losses) on defined benefit obligations	$	(166	)	$	(5	)	$	(699	)	$	(7	)	$	38	$	(35	)
Net actuarial gains (losses) on plan assets		199			166			626			–			–		–
Changes in asset ceiling excluding interest income		1			(28	)		(1	)		–			–		–
Net remeasurement gains (losses) recognized in OCI	$	34		$	133		$	(74	)	$	(7	)	$	38	$	(35	)

(1) The Canadian post-employment defined benefit plans are remeasured on a quarterly basis for changes in the discount rate and for actual asset returns. All other Canadian plans’ actuarial assumptions and foreign plans’ actuarial assumptions are updated at least annually.