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COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables) | 6 Months Ended
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Jun. 30, 2021
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |
Schedule of changes in AOCI attributable to Enbridge, Inc. common shareholders | Changes in Accumulated Other Comprehensive Income (AOCI) attributable to our common shareholders for the six months ended June 30, 2021 and 2020 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 as at January 1, 2021 | (1,326) |  | 5 |  | (215) |  | 568 |  | 66 |  | (499) |  | (1,401) |
Other comprehensive income/(loss) retained in AOCI | 294 |  | (2) |  | 251 |  | (1,584) |  | 1 |  | — |  | (1,040) |
Other comprehensive loss/(income) reclassified to earnings |  |  |  |  |  |  |
Interest rate contracts 1 | 142 |  | — |  | — |  | — |  | — |  | — |  | 142 |
Foreign exchange contracts 2 | 3 |  | — |  | — |  | — |  | — |  | — |  | 3 |
Other contracts 3 | 1 |  | — |  | — |  | — |  | — |  | — |  | 1 |
Amortization of pension and OPEB actuarial loss and prior service costs 4 | — |  | — |  | — |  | — |  | — |  | 14 |  | 14 |
Other | 17 |  | — |  | — |  | (20) |  | 3 |  | — |  | — |
| 457 |  | (2) |  | 251 |  | (1,604) |  | 4 |  | 14 |  | (880) |
Tax impact |  |  |  |  |  |  |
Income tax on amounts retained in AOCI | (75) |  | — |  | (29) |  | — |  | 1 |  | — |  | (103) |
Income tax on amounts reclassified to earnings | (33) |  | — |  | — |  | — |  | — |  | (3) |  | (36) |
| (108) |  | — |  | (29) |  | — |  | 1 |  | (3) |  | (139) |
Balance as at June 30, 2021 | (977) |  | 3 |  | 7 |  | (1,036) |  | 71 |  | (488) |  | (2,420) |
| 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 as at January 1, 2020 | (1,073) |  | — |  | (317) |  | 1,396 |  | 67 |  | (345) |  | (272) |
Other comprehensive income/(loss) retained in AOCI | (738) |  | 8 |  | (375) |  | 2,843 |  | 25 |  | — |  | 1,763 |
Other comprehensive loss reclassified to earnings |  |  |  |  |  |  |
Interest rate contracts 1 | 103 |  | — |  | — |  | — |  | — |  | — |  | 103 |
Foreign exchange contracts 2 | 2 |  | — |  | — |  | — |  | — |  | — |  | 2 |
Amortization of pension and OPEB actuarial loss and prior service costs 4 | — |  | — |  | — |  | — |  | — |  | 9 |  | 9 |
| (633) |  | 8 |  | (375) |  | 2,843 |  | 25 |  | 9 |  | 1,877 |
Tax impact |  |  |  |  |  |  |
Income tax on amounts retained in AOCI | 180 |  | — |  | — |  | — |  | (5) |  | — |  | 175 |
Income tax on amounts reclassified to earnings | (25) |  | — |  | — |  | — |  | — |  | (2) |  | (27) |
| 155 |  | — |  | — |  | — |  | (5) |  | (2) |  | 148 |
Balance as at June 30, 2020 | (1,551) |  | 8 |  | (692) |  | 4,239 |  | 87 |  | (338) |  | 1,753 |
1 Reported within Interest expense in the Consolidated Statements of Earnings. 2 Reported within Transportation and other services revenues and Net foreign currency gain/(loss) in the Consolidated Statements of Earnings. 3 Reported within Operating and administrative expense in the Consolidated Statements of Earnings. 4 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.

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