Changes in Accumulated Other Comprehensive Loss ("AOCL") by Component (Tables)

9 Months Ended

Sep. 30, 2022

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Changes in Accumulated Other Comprehensive Income Loss by Component

	For the three months ended September 30
(in millions of Canadian dollars)	Foreign currency net of hedging activities(1)		Derivatives(1)(2)		Pension and post- retirement defined benefit plans(1)		Equity accounted investments(1)(2)		Total(1)
Opening balance, July 1, 2022	$	217	$	(2)	$	(1,856)	$	102	$	(1,539)
Other comprehensive income (loss) before reclassifications	1,618		—		(14)		37		1,641
Amounts reclassified from accumulated other comprehensive income	—		1		30		—		31
Net other comprehensive income	1,618		1		16		37		1,672
Closing balance, September 30, 2022	$	1,835	$	(1)	$	(1,840)	$	139	$	133
Opening balance, July 1, 2021	$	110	$	(91)	$	(2,800)	$	(10)	$	(2,791)
Other comprehensive income before reclassifications	6		101		—		—		107
Amounts reclassified from accumulated other comprehensive loss	—		2		39		—		41
Net other comprehensive income	6		103		39		—		148
Closing balance, September 30, 2021	$	116	$	12	$	(2,761)	$	(10)	$	(2,643)

(1)Amounts are presented net of tax.

(2) Comparative figures have been reclassified to conform with current period presentation.

	For the nine months ended September 30
(in millions of Canadian dollars)	Foreign currency net of hedging activities(1)		Derivatives(1)(2)		Pension and post- retirement defined benefit plans(1)		Equity accounted investments(1)(2)		Total(1)
Opening balance, January 1, 2022	$	(182)	$	(4)	$	(1,915)	$	(2)	$	(2,103)
Other comprehensive income (loss) before reclassifications	2,017		—		(14)		140		2,143
Amounts reclassified from accumulated other comprehensive income	—		3		89		1		93
Net other comprehensive income	2,017		3		75		141		2,236
Closing balance, September 30, 2022	$	1,835	$	(1)	$	(1,840)	$	139	$	133
Opening balance, January 1, 2021	$	112	$	(40)	$	(2,878)	$	(8)	$	(2,814)
Other comprehensive income (loss) before reclassifications	4		46		—		(2)		48
Amounts reclassified from accumulated other comprehensive loss	—		6		117		—		123
Net other comprehensive income (loss)	4		52		117		(2)		171
Closing balance, September 30, 2021	$	116	$	12	$	(2,761)	$	(10)	$	(2,643)

(1)Amounts are presented net of tax.

(2) Comparative figures have been reclassified to conform with current period presentation.

Amounts in Pension and Post-retirement Defined Benefit Plans Reclassified from AOCL

Amounts in Pension and post-retirement defined benefit plans reclassified from AOCI are as follows:

	For the three months ended September 30				For the nine months ended September 30
(in millions of Canadian dollars)	2022		2021		2022		2021
Recognition of net actuarial loss(1)	$	39	$	53	$	116	$	158
Income tax recovery	(9)		(14)		(27)		(41)
Total net of income tax	$	30	$	39	$	89	$	117

(1)Impacts "Other components of net periodic benefit recovery" on the Interim Consolidated Statements of Income.