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COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - CAD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
Changes in AOCI |  |
Balance at the beginning of the period | $ 69,407 |
Other comprehensive income/(loss) retained in AOCI | 851 | $ (2,483)
Other comprehensive (income)/loss reclassified to earnings | 13 | 59
Total before tax impact | 1,044 | (2,316)
Income tax on amounts retained in AOCI | 172 | 227
Income tax on amounts reclassified to earnings | (45) | (49)
Tax impact | 127 | 178
Other |  | 48
Balance at the end of the period | 68,435 | 72,676
Interest rate contracts |  |
Changes in AOCI |  |
Other comprehensive (income)/loss reclassified to earnings | 179 | 108
Commodity contracts |  |
Changes in AOCI |  |
Other comprehensive (income)/loss reclassified to earnings | (1) |
Foreign exchange contracts |  |
Changes in AOCI |  |
Other comprehensive (income)/loss reclassified to earnings | 3 | 4
Other contracts |  |
Changes in AOCI |  |
Other comprehensive (income)/loss reclassified to earnings | (1) | (4)
Total |  |
Changes in AOCI |  |
Balance at the beginning of the period | (272) | 2,672
Balance at the end of the period | 899 | 582
Cash Flow Hedges |  |
Changes in AOCI |  |
Balance at the beginning of the period | (1,073) | (770)
Other comprehensive income/(loss) retained in AOCI | (696) | (845)
Total before tax impact | (516) | (737)
Income tax on amounts retained in AOCI | 167 | 254
Income tax on amounts reclassified to earnings | (42) | (34)
Tax impact | 125 | 220
Other |  | 0
Balance at the end of the period | (1,464) | (1,287)
Cash Flow Hedges | Interest rate contracts |  |
Changes in AOCI |  |
Other comprehensive (income)/loss reclassified to earnings | 179 | 108
Cash Flow Hedges | Commodity contracts |  |
Changes in AOCI |  |
Other comprehensive (income)/loss reclassified to earnings | (1) |
Cash Flow Hedges | Foreign exchange contracts |  |
Changes in AOCI |  |
Other comprehensive (income)/loss reclassified to earnings | 3 | 4
Cash Flow Hedges | Other contracts |  |
Changes in AOCI |  |
Other comprehensive (income)/loss reclassified to earnings | (1) | (4)
Excluded Components of Fair Value Hedges |  |
Changes in AOCI |  |
Balance at the beginning of the period | 0 |
Other comprehensive income/(loss) retained in AOCI | 7 |
Total before tax impact | 7 |
Income tax on amounts retained in AOCI | 0 |
Income tax on amounts reclassified to earnings | 0 |
Tax impact | 0 |
Balance at the end of the period | 7 |
Net Investment Hedges |  |
Changes in AOCI |  |
Balance at the beginning of the period | (317) | (598)
Other comprehensive income/(loss) retained in AOCI | (228) | 167
Total before tax impact | (228) | 167
Income tax on amounts retained in AOCI | 7 | (20)
Income tax on amounts reclassified to earnings | 0 | 0
Tax impact | 7 | (20)
Other |  | 0
Balance at the end of the period | (538) | (451)
Cumulative Translation Adjustment |  |
Changes in AOCI |  |
Balance at the beginning of the period | 1,396 | 4,323
Other comprehensive income/(loss) retained in AOCI | 1,760 | (1,831)
Total before tax impact | 1,760 | (1,831)
Income tax on amounts retained in AOCI | 0 | 0
Income tax on amounts reclassified to earnings | 0 | 0
Tax impact | 0 | 0
Other |  | 0
Balance at the end of the period | 3,156 | 2,492
Equity Investees |  |
Changes in AOCI |  |
Balance at the beginning of the period | 67 | 34
Other comprehensive income/(loss) retained in AOCI | 8 | 26
Total before tax impact | 8 | 26
Income tax on amounts retained in AOCI | (2) | (7)
Income tax on amounts reclassified to earnings | 0 | 0
Tax impact | (2) | (7)
Other |  | (7)
Balance at the end of the period | 73 | 46
Pension and OPEB Adjustment |  |
Changes in AOCI |  |
Balance at the beginning of the period | (345) | (317)
Other comprehensive (income)/loss reclassified to earnings | 13 | 59
Total before tax impact | 13 | 59
Income tax on amounts retained in AOCI | 0 | 0
Income tax on amounts reclassified to earnings | (3) | (15)
Tax impact | (3) | (15)
Other |  | 55
Balance at the end of the period | $ (335) | $ (218)

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