XML 165 R137.htm IDEA: XBRL DOCUMENT
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Property, Plant, and Equipment - Reconciliation of the changes in the carrying amount of PP&E (Details) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2017
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | $ 6,578 | $ 6,824 |
Property, plant and equipment, end of the period | 6,164 | 6,578 |
Current spare parts |  |  | $ 13
Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 12,973 | 12,773 |
Additions | 284 | 338 |
Disposals | (7) | (19) |
Retirement of assets | (90) | (119) |
Change in foreign exchange rates | 131 | (119) |
Transfers(2)(3) | (18) | (26) |
Property, plant and equipment, end of the period | 13,202 | 12,973 |
Accumulated depreciation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | (6,395) | (5,949) |
Disposals | (5) | (12) |
Retirement of assets | (83) | (90) |
Change in foreign exchange rates | 92 | (76) |
Transfers(2)(3) | (10) | (11) |
Depreciation | 649 | 635 |
Property, plant and equipment, end of the period | (7,038) | (6,395) |
Land |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 95 | 95 |
Property, plant and equipment, end of the period | 94 | 95 |
Land | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 95 | 95 |
Additions | 0 | 0 |
Disposals | (3) | 0 |
Retirement of assets | 0 | 0 |
Change in foreign exchange rates | 2 | (1) |
Transfers(2)(3) | 0 | 1 |
Property, plant and equipment, end of the period | 94 | 95 |
Land | Accumulated depreciation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 0 | 0 |
Disposals | 0 | 0 |
Retirement of assets | 0 | 0 |
Change in foreign exchange rates | 0 | 0 |
Transfers(2)(3) | 0 | 0 |
Depreciation | 0 | 0 |
Property, plant and equipment, end of the period | 0 | 0 |
Coal generation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 2,457 | 2,664 |
Property, plant and equipment, end of the period | 2,172 | 2,457 |
Coal generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 5,888 | 5,876 |
Additions | 0 | 0 |
Disposals | 0 | 0 |
Retirement of assets | (47) | (84) |
Change in foreign exchange rates | 105 | (87) |
Transfers(2)(3) | 41 | 121 |
Property, plant and equipment, end of the period | 5,937 | 5,888 |
Coal generation | Accumulated depreciation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | (3,431) | (3,212) |
Disposals | 0 | 0 |
Retirement of assets | (56) | (62) |
Change in foreign exchange rates | 84 | (67) |
Transfers(2)(3) | 0 | (3) |
Depreciation | 306 | 351 |
Property, plant and equipment, end of the period | (3,765) | (3,431) |
Gas generation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 910 | 498 |
Property, plant and equipment, end of the period | 836 | 910 |
Gas generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 1,982 | 1,525 |
Additions | 0 | 0 |
Disposals | 0 | (16) |
Retirement of assets | (17) | (3) |
Change in foreign exchange rates | (13) | 3 |
Transfers(2)(3) | 13 | 461 |
Property, plant and equipment, end of the period | 1,964 | 1,982 |
Gas generation | Accumulated depreciation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | (1,072) | (1,027) |
Disposals | 0 | (11) |
Retirement of assets | (13) | (2) |
Change in foreign exchange rates | (3) | (1) |
Transfers(2)(3) | (7) | (8) |
Depreciation | 79 | 67 |
Property, plant and equipment, end of the period | (1,128) | (1,072) |
Renewable generation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 2,191 | 2,290 |
Property, plant and equipment, end of the period | 2,125 | 2,191 |
Renewable generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 3,228 | 3,212 |
Additions | 1 | 0 |
Disposals | 0 | (1) |
Retirement of assets | (6) | (4) |
Change in foreign exchange rates | 26 | (23) |
Transfers(2)(3) | 51 | 29 |
Property, plant and equipment, end of the period | 3,286 | 3,228 |
Renewable generation | Accumulated depreciation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | (1,037) | (922) |
Disposals | 0 | (1) |
Retirement of assets | (2) | (3) |
Change in foreign exchange rates | 6 | (4) |
Transfers(2)(3) | (3) | 0 |
Depreciation | 123 | 123 |
Property, plant and equipment, end of the period | (1,161) | (1,037) |
Mining property and equipment |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 602 | 606 |
Property, plant and equipment, end of the period | 508 | 602 |
Mining property and equipment | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 1,315 | 1,265 |
Additions | 0 | 0 |
Disposals | (1) | (1) |
Retirement of assets | (16) | (22) |
Change in foreign exchange rates | 7 | (7) |
Transfers(2)(3) | 39 | 24 |
Property, plant and equipment, end of the period | 1,338 | 1,315 |
Mining property and equipment | Accumulated depreciation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | (713) | (659) |
Disposals | (1) | 0 |
Retirement of assets | (12) | (18) |
Change in foreign exchange rates | 5 | (4) |
Transfers(2)(3) | 0 | 0 |
Depreciation | 125 | 76 |
Property, plant and equipment, end of the period | (830) | (713) |
Assets under construction |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 95 | 407 |
Property, plant and equipment, end of the period | 200 | 95 |
Assets under construction | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 95 | 407 |
Additions | 275 | 334 |
Disposals | 0 | 0 |
Retirement of assets | 0 | 0 |
Change in foreign exchange rates | 4 | (2) |
Transfers(2)(3) | (174) | (644) |
Property, plant and equipment, end of the period | 200 | 95 |
Assets under construction | Accumulated depreciation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 0 | 0 |
Disposals | 0 | 0 |
Retirement of assets | 0 | 0 |
Change in foreign exchange rates | 0 | 0 |
Transfers(2)(3) | 0 | 0 |
Depreciation | 0 | 0 |
Property, plant and equipment, end of the period | 0 | 0 |
Capital spares and other |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 228 | 264 |
Property, plant and equipment, end of the period | 229 | 228 |
Capital spares and other | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | 370 | 393 |
Additions | 8 | 4 |
Disposals | (3) | (1) |
Retirement of assets | (4) | (6) |
Change in foreign exchange rates | 0 | (2) |
Transfers(2)(3) | 12 | (18) |
Property, plant and equipment, end of the period | 383 | 370 |
Capital spares and other | Accumulated depreciation |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant and equipment, beginning of the period | (142) | (129) |
Disposals | (4) | 0 |
Retirement of assets | 0 | (5) |
Change in foreign exchange rates | 0 | 0 |
Transfers(2)(3) | 0 | 0 |
Depreciation | 16 | 18 |
Property, plant and equipment, end of the period | (154) | (142) |
Gas equipment |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Transfers(2)(3) |  | 14 |
Decommissioning and restoration | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revisions and additions to decommissioning and restoration costs | (32) | 151 |
Decommissioning and restoration | Land | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revisions and additions to decommissioning and restoration costs | 0 | 0 |
Decommissioning and restoration | Coal generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revisions and additions to decommissioning and restoration costs | (12) | 82 |
Decommissioning and restoration | Gas generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revisions and additions to decommissioning and restoration costs | (1) | 12 |
Decommissioning and restoration | Renewable generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revisions and additions to decommissioning and restoration costs | (3) | 15 |
Decommissioning and restoration | Mining property and equipment | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revisions and additions to decommissioning and restoration costs | (16) | 42 |
Decommissioning and restoration | Assets under construction | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revisions and additions to decommissioning and restoration costs | 0 | 0 |
Decommissioning and restoration | Capital spares and other | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revisions and additions to decommissioning and restoration costs | 0 | 0 |
Poplar Creek | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges |  | (20) |
Poplar Creek | Land | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges |  | 0 |
Poplar Creek | Coal generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges |  | (20) |
Poplar Creek | Gas generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges |  | 0 |
Poplar Creek | Renewable generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges |  | 0 |
Poplar Creek | Mining property and equipment | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges |  | 0 |
Poplar Creek | Assets under construction | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges |  | 0 |
Poplar Creek | Capital spares and other | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges |  | 0 |
Wintering Hills | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges | (49) |  |
Wintering Hills | Land | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges | 0 |  |
Wintering Hills | Coal generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges | (38) |  |
Wintering Hills | Gas generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges | 0 |  |
Wintering Hills | Renewable generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges | (11) |  |
Wintering Hills | Mining property and equipment | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges | 0 |  |
Wintering Hills | Assets under construction | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges | 0 |  |
Wintering Hills | Capital spares and other | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment charges | 0 |  |
Finance Lease | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions | 10 |  |
Finance Lease | Land | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions | 0 |  |
Finance Lease | Coal generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions | 0 |  |
Finance Lease | Gas generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions | 0 |  |
Finance Lease | Renewable generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions | 0 |  |
Finance Lease | Mining property and equipment | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions | 10 |  |
Finance Lease | Assets under construction | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions | 0 |  |
Finance Lease | Capital spares and other | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions | 0 |  |
Finance lease receivables | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions |  | 14 |
Finance lease receivables | Land | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions |  | 0 |
Finance lease receivables | Coal generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions |  | 0 |
Finance lease receivables | Gas generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions |  | 0 |
Finance lease receivables | Renewable generation | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions |  | 0 |
Finance lease receivables | Mining property and equipment | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions |  | 14 |
Finance lease receivables | Assets under construction | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions |  | 0 |
Finance lease receivables | Capital spares and other | Gross carrying amount |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions |  | $ 0 |
US Wind Projects - Big Level [Member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Additions | $ 7 |  |

X
- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_i&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_vii&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 75 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_75_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_ii&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_v&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 98 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -Clause viii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_viii&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -Clause ix -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_ix&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_a&doctype=Standard -URIDate 2017-03-09 + Details
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