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COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables) | 9 Months Ended
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Sep. 30, 2019
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 nine months ended September 30, 2019 and 2018 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, 2019 | (770 | ) | (598 | ) | 4,323 |  | 34 |  | (317 | ) | 2,672 |
Other comprehensive income/(loss) retained in AOCI | (845 | ) | 167 |  | (1,831 | ) | 26 |  | — |  | (2,483 | )
Other comprehensive (income)/loss reclassified to earnings |  |  |  |  |  |  |
Interest rate contracts 1 | 108 |  | — |  | — |  | — |  | — |  | 108 |
Foreign exchange contracts 3 | 4 |  | — |  | — |  | — |  | — |  | 4 |
Other contracts 4 | (4 | ) | — |  | — |  | — |  | — |  | (4 | )
Amortization of pension and OPEB actuarial loss and prior service costs 5 | — |  | — |  | — |  | — |  | 59 |  | 59 |
| (737 | ) | 167 |  | (1,831 | ) | 26 |  | 59 |  | (2,316 | )
Tax impact |  |  |  |  |  |  |  |  |  |  |  |
Income tax on amounts retained in AOCI | 254 |  | (20 | ) | — |  | (7 | ) | — |  | 227 |
Income tax on amounts reclassified to earnings | (34 | ) | — |  | — |  | — |  | (15 | ) | (49 | )
| 220 |  | (20 | ) | — |  | (7 | ) | (15 | ) | 178 |
Other | — |  | — |  | — |  | (7 | ) | 55 |  | 48 |
Balance as at September 30, 2019 | (1,287 | ) | (451 | ) | 2,492 |  | 46 |  | (218 | ) | 582 |
| 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 contracts 1 | 92 |  | — |  | — |  | — |  | — |  | 92 |
Commodity contracts 2 | (1 | ) | — |  | — |  | — |  | — |  | (1 | )
Foreign exchange contracts 3 | 6 |  | — |  | — |  | — |  | — |  | 6 |
Other contracts 4 | 10 |  | — |  | — |  | — |  | — |  | 10 |
Amortization of pension and OPEB actuarial loss and prior service costs 5 | — |  | — |  | — |  | — |  | 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 |
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.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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