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CHANGES IN ACCOUNTING POLICIES (Details) - CAD ($) $ in Millions | Mar. 31, 2018 | Jan. 01, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Assets |  |  |
Deferred amounts and other assets | $ 5,614 | $ 6,272 | $ 6,442
Property, plant and equipment, net | 92,521 | 90,823 | 90,711
Liabilities and equity |  |  |
Accounts payable and other | 6,823 | 9,540 | 9,478
Other long-term liabilities | 8,390 | 7,576 | 7,510
Deferred income taxes | 9,812 | 9,233 | 9,295
Redeemable noncontrolling interests | 3,815 | 4,029 | 4,067
Retained deficit | $ (1,982) | (2,554) | (2,468)
Calculated under Revenue Guidance in Effect before Topic 606 |  |  |
Assets |  |  |
Deferred amounts and other assets |  |  | 6,442
Property, plant and equipment, net |  |  | 90,711
Liabilities and equity |  |  |
Accounts payable and other |  |  | 9,478
Other long-term liabilities |  |  | 7,510
Deferred income taxes |  |  | 9,295
Redeemable noncontrolling interests |  |  | 4,067
Retained deficit |  |  | $ (2,468)
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606 |  |  |
Assets |  |  |
Deferred amounts and other assets |  | (170) |
Property, plant and equipment, net |  | 112 |
Liabilities and equity |  |  |
Accounts payable and other |  | 62 |
Other long-term liabilities |  | 66 |
Deferred income taxes |  | (62) |
Redeemable noncontrolling interests |  | (38) |
Retained deficit |  | $ (86) |

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