COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS)

12 Months Ended

Dec. 31, 2020

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS)

Changes in AOCI attributable to our common shareholders for the years ended December 31, 2020, 2019 and 2018 are as follows:


	Cash Flow Hedges	Excluded Components of Fair Value Hedges	Net Investment Hedges	Cumulative Translation Adjustment	Equity Investees	Pension and OPEB Adjustment	Total
(millions of Canadian dollars)
Balance at January 1, 2020	(1,073)	—	(317)	1,396	67	(345)	(272)
Other comprehensive income/(loss) retained in AOCI	(591)	5	115	(828)	(2)	(221)	(1,522)
Other comprehensive (income)/loss reclassified to earnings
Interest rate contracts1	253	—	—	—	—	—	253

Foreign exchange contracts3	5	—	—	—	—	—	5
Other contracts4	(2)	—	—	—	—	—	(2)
Amortization of pension and OPEB actuarial loss and prior service costs5	—	—	—	—	—	17	17
	(335)	5	115	(828)	(2)	(204)	(1,249)
Tax impact
Income tax on amounts retained in AOCI	140	—	(13)	—	1	54	182
Income tax on amounts reclassified to earnings	(58)	—	—	—	—	(4)	(62)
	82	—	(13)	—	1	50	120

Balance at December 31, 2020	(1,326)	5	(215)	568	66	(499)	(1,401)


	Cash Flow Hedges	Net Investment Hedges	Cumulative Translation Adjustment	Equity Investees	Pension and OPEB Adjustment	Total
(millions of Canadian dollars)
Balance at January 1, 2019	(770)	(598)	4,323	34	(317)	2,672
Other comprehensive income/(loss) retained in AOCI	(599)	320	(2,927)	34	(124)	(3,296)
Other comprehensive (income)/loss reclassified to earnings
Interest rate contracts1	157	—	—	—	—	157
Commodity contracts2	(1)	—	—	—	—	(1)
Foreign exchange contracts3	5	—	—	—	—	5
Other contracts4	(3)	—	—	—	—	(3)
Amortization of pension and OPEB actuarial loss and prior service costs5	—	—	—	—	17	17
	(441)	320	(2,927)	34	(107)	(3,121)
Tax impact
Income tax on amounts retained in AOCI	169	(39)	—	6	28	164
Income tax on amounts reclassified to earnings	(31)	—	—	—	(4)	(35)
	138	(39)	—	6	24	129
Other	—	—	—	(7)	55	48
Balance at December 31, 2019	(1,073)	(317)	1,396	67	(345)	(272)


	Cash Flow Hedges	Net Investment Hedges	Cumulative Translation Adjustment	Equity Investees	Pension and OPEB Adjustment	Total
(millions of Canadian dollars)
Balance at January 1, 2018	(644)	(139)	77	10	(277)	(973)
Other comprehensive income/(loss) retained in AOCI	(244)	(509)	4,301	16	(85)	3,479
Other comprehensive (income)/loss reclassified to earnings
Interest rate contracts1	157	—	—	—	—	157
Commodity contracts2	(1)	—	—	—	—	(1)
Foreign exchange contracts3	7	—	—	—	—	7
Other contracts4	22	—	—	—	—	22
Amortization of pension and OPEB actuarial loss and prior service costs5	—	—	—	—	16	16

	(59)	(509)	4,301	16	(69)	3,680
Tax impact
Income tax on amounts retained in AOCI	57	50	—	8	33	148
Income tax on amounts reclassified to earnings	(37)	—	—	—	(4)	(41)

	20	50	—	8	29	107
Sponsored Vehicles buy-in6	(87)	—	(55)	—	—	(142)
Balance at December 31, 2018	(770)	(598)	4,323	34	(317)	2,672

1Reported within Interest expense in the Consolidated Statements of Earnings.

2Reported within Transportation and other services revenue, Commodity sales revenues, Commodity costs and Operating and administrative expense in the Consolidated Statements of Earnings.

3Reported within Transportation and other services revenues and Net foreign currency gain/(loss) in the Consolidated Statements of Earnings.

4Reported within Operating and administrative expense in the Consolidated Statements of Earnings.

5These components are included in the computation of net benefit costs and are reported within Other income/(expense) in the Consolidated Statements of Earnings.

6Represents the historical noncontrolling interests and redeemable noncontrolling interests related to the Sponsored Vehicles reclassified to AOCI, upon the completion of the buy-in.