XML 48 R85.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Significant Accounting Policies (Details) | 12 Months Ended
--- | ---
Dec. 31, 2019
Coal generation | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 2 years
Coal generation | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 50 years
Gas generation | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 2 years
Gas generation | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 30 years
Hydro | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 2 years
Hydro | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 60 years
Wind Generation | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 2 years
Wind Generation | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 30 years
Mining property and equipment | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 2 years
Mining property and equipment | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 10 years
Capital spares and other | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 2 years
Capital spares and other | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 60 years
Facilities | Minimum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 30 years
Facilities | Maximum |
Disclosure of detailed information about property, plant and equipment [line items] |
PP&E useful life | 60 years
Computer software | Minimum |
Disclosure of detailed information about intangible assets [line items] |
Intangible assets, useful life | 2 years
Computer software | Maximum |
Disclosure of detailed information about intangible assets [line items] |
Intangible assets, useful life | 7 years
Power sale contracts | Minimum |
Disclosure of detailed information about intangible assets [line items] |
Intangible assets, useful life | 1 year
Power sale contracts | Maximum |
Disclosure of detailed information about intangible assets [line items] |
Intangible assets, useful life | 15 years

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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 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 Intangible Assets Useful Life + References No definition available. + Details
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- Definition Property, Plant, And Equipment Useful Life1 + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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Data Type: | na
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Period Type: |

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- Details
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Data Type: | na
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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Data Type: | na
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- Details
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- Details
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