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.

No definition available.

+ Details

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- Definition

The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2018-01-01
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-IssueDate 2017-01-01
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2017-03-09

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- Definition

Credit Risk, Allocation Percentage

+ 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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- Details

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- Details

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- Details

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Risk Management Activities - Credit Risk (Details) - CAD ($) number in Thousands, $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	$ 13	$ 40
Trade and other receivables	756	$ 933
Credit risk
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	$ 1,807
Credit risk \| Trade and other receivables
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	10000.00%
Credit risk \| Long-term portion of finance lease receivables
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	10000.00%
Maximum exposure to credit risk	$ 191
Credit risk \| Risk management assets
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	10000.00%
Maximum exposure to credit risk	$ 808
Credit risk \| Loans and receivables
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	10000.00%
Maximum exposure to credit risk	$ 77
Credit risk \| Investment Grade [Member] \| Trade and other receivables
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	8600.00%
Credit risk \| Investment Grade [Member] \| Long-term portion of finance lease receivables
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	10000.00%
Credit risk \| Investment Grade [Member] \| Risk management assets
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	9900.00%
Credit risk \| Investment Grade [Member] \| Loans and receivables
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	0.00%
Credit risk \| Non-Investment Grade [Member] \| Trade and other receivables
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	1400.00%
Credit risk \| Non-Investment Grade [Member] \| Long-term portion of finance lease receivables
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	0.00%
Credit risk \| Non-Investment Grade [Member] \| Risk management assets
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	100.00%
Credit risk \| Non-Investment Grade [Member] \| Loans and receivables
Disclosure of credit risk exposure [line items]
Credit risk, allocation percentage	10000.00%
Trade and other receivables \| Credit risk
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	$ 731