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Other Assets Narrative (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of joint operations [line items]
Loan receivable	$ 47	$ 37
Kent Hills Wind L.P.
Disclosure of joint operations [line items]
Loan receivable	$ 47	$ 37
Proportion of ownership interests held by non-controlling interests	17.00%
Interest rate	4.55%

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

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-IssueDate 2018-01-01
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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.

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X

- Definition

The amount of non-current loans and receivables. [Refer: Loans and receivables]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The proportion of ownership interests in a subsidiary held by non-controlling interests. [Refer: Subsidiaries [member]; Non-controlling interests]

+ References

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