Changes in Accumulated other comprehensive income ("AOCI") by component

9 Months Ended

Sep. 30, 2025

Changes in AOCI and Accumulated other comprehensive loss ("AOCL") attributable to controlling shareholders, net of tax, by component are as follows:


	For the three months ended September 30
(in millions of Canadian dollars)	Foreign currency net of hedging activities		Derivatives		Pension and post- retirement defined benefit plans		Equity accounted investments		Total
Opening balance, July 1, 2025	$	1,678	$	11	$	(736)	$	(2)	$	951
Other comprehensive income before reclassifications	646		—		—		3		649
Amounts reclassified from AOCI	—		(1)		3		—		2
Net other comprehensive income (loss)	646		(1)		3		3		651
Balance as at September 30, 2025	$	2,324	$	10	$	(733)	$	1	$	1,602
Opening balance, July 1, 2024	$	1,816	$	8	$	(1,446)	$	1	$	379
Other comprehensive loss before reclassifications	(412)		—		—		(5)		(417)
Amounts reclassified from AOCL	—		1		9		—		10
Net other comprehensive (loss) income	(412)		1		9		(5)		(407)
Balance as at September 30, 2024	$	1,404	$	9	$	(1,437)	$	(4)	$	(28)


	For the nine months ended September 30
	Foreign currency net of hedging activities		Derivatives		Pension and post- retirement defined benefit plans		Equity accounted investments		Total
Opening balance, January 1, 2025	$	3,413	$	10	$	(738)	$	(5)	$	2,680
Other comprehensive loss before reclassifications	(1,089)		—		—		6		(1,083)
Amounts reclassified from AOCI	—		—		5		—		5
Net other comprehensive (loss) income	(1,089)		—		5		6		(1,078)
Balance as at September 30, 2025	$	2,324	$	10	$	(733)	$	1	$	1,602
Opening balance, January 1, 2024	$	837	$	5	$	(1,463)	$	3	$	(618)
Other comprehensive income (loss) before reclassifications	567		—		—		(7)		560
Amounts reclassified from AOCL	—		4		26		—		30
Net other comprehensive income (loss)	567		4		26		(7)		590
Balance as at September 30, 2024	$	1,404	$	9	$	(1,437)	$	(4)	$	(28)