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Employee Benefit Plans (Amounts to be Amortized in the Next Fiscal Year) (Details) $ in Millions	Dec. 31, 2019 CAD ($)
Defined benefit pension plans
Defined Benefit Plan Disclosure [Line Items]
Actuarial gains (losses)	$ (14)
Past service gains	(1)
Regulated assets	(29)
Total	(44)
Non-pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Actuarial gains (losses)	0
Past service gains	0
Regulated assets	(1)
Total	$ (1)

X

- Definition

Amount included in accumulated other comprehensive income (AOCI) related to Regulated assets expected to be recognized as components of net periodic benefit cost (credit) for the fiscal year that follows the most recent annual statement of financial position.

+ References

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+ References

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- Definition

Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (s)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (s)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

+ References

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-SubTopic 20
-Section 50
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