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COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME
 9 Months Ended
Sep. 30, 2018
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]  
COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME
COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME
 
Changes in AOCI attributable to our common shareholders for the nine months ended September 30, 2018 and 2017 are as follows:
 
Cash Flow 
Hedges

Net
Investment
Hedges

Cumulative
Translation
Adjustment

Equity
Investees

Pension and
OPEB
Adjustment

Total

(millions of Canadian dollars)
 
 
 
 
 
 
Balance as at January 1, 2018
(644
)
(139
)
77

10

(277
)
(973
)
Other comprehensive income/(loss) retained in AOCI
167

(232
)
1,495

(8
)
—

1,422

Other comprehensive (income)/loss reclassified to earnings
 
 
 
 
 


Interest rate contracts1
92

—

—

—

—

92

Commodity contracts2
(1
)
—

—

—

—

(1
)
Foreign exchange contracts3
6

—

—

—

—

6

Other contracts4
10

—

—

—

—

10

Amortization of pension and OPEB actuarial loss and prior service costs5
—

—

—

—

36

36

 
274

(232
)
1,495

(8
)
36

1,565

Tax impact
 

 

 

 

 

 

Income tax on amounts retained in AOCI
(26
)
32

—

9

—

15

Income tax on amounts reclassified to earnings
(29
)
—

—

—

(8
)
(37
)
 
(55
)
32

—

9

(8
)
(22
)
Balance as at September 30, 2018
(425
)
(339
)
1,572

11

(249
)
570

 
Cash Flow
Hedges

Net
Investment
Hedges

Cumulative
Translation
Adjustment

Equity
Investees

Pension and
OPEB
Adjustment

Total

(millions of Canadian dollars)
 
 
 
 
 
 
Balance as at January 1, 2017
(746
)
(629
)
2,700

37

(304
)
1,058

Other comprehensive income/(loss) retained in AOCI
29

496

(2,616
)
(4
)
—

(2,095
)
Other comprehensive (income)/loss reclassified to earnings
 
 
 
 
 


Interest rate contracts1
104

—

—

—

—

104

Commodity contracts2
(5
)
—

—

—

—

(5
)
Foreign exchange contracts3
(2
)
—

—

—

—

(2
)
Other contracts4
(3
)
—

—

—

—

(3
)
Amortization of pension and OPEB actuarial loss and prior service costs5

—

—

—

—

21

21

 
123

496

(2,616
)
(4
)
21

(1,980
)
Tax impact
 
 
 
 
 
 
Income tax on amounts retained in AOCI
(9
)
9

—

13

—

13

Income tax on amounts reclassified to earnings
(34
)
—

—

—

(8
)
(42
)
 
(43
)
9

—

13

(8
)
(29
)
Balance as at September 30, 2017
(666
)
(124
)
84

46

(291
)
(951
)
 
1
Reported within Interest expense in the Consolidated Statements of Earnings.
2
Reported within Commodity costs in the Consolidated Statements of Earnings.
3
Reported within Other income/(expense) in the Consolidated Statements of Earnings.
4
Reported within Operating and administrative expense in the Consolidated Statements of Earnings.
5
These components are included in the computation of net periodic benefit costs and are reported within Other income/(expense) in the Consolidated Statements of Earnings.