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.

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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.

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- Definition

Intangible Assets Useful Life

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- Definition

Property, Plant, And Equipment Useful Life1

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