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Other Assets (Details) - CAD CAD in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [abstract]
Prepaid Transmission Access And Distribution, Non-Current	CAD 75	CAD 0
Deferred licence fees	13	15
Project development costs	53	46
Deferred service costs	15	16
Mississauga long-term receivable (Note 4)	0	116
Long-term prepaids and other assets	44	44
Loan receivable	33	0
Keephills Unit 3 transmission deposit	4	5
Total other assets	CAD 237	CAD 242

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The amount of long-term deposits held by the entity.

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The non-current portion of non-current loans received. [Refer: Loans received]

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The amount of non-current prepayments. [Refer: Prepayments]

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The amount of non-current receivables from contracts with customers. [Refer: Receivables from contracts with customers]

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The amount of non-current assets that the entity does not separately disclose in the same statement or note. [Refer: Non-current assets]

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Non-current Deferred License Fees

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Non-current Deferred Service Costs

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Prepaid Transmission Access And Distribution, Non-Current

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Project Development Costs, Non-current

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