No definition available.

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- Definition

Maximum borrowing capacity that the Company is enabling to issue under the commercial paper program.

+ References

No definition available.

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- Definition

Period of time between issuance and maturity of commercial paper, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Weighted average interest rate of commercial paper outstanding.

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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- Definition

The cash inflow from borrowing by issuing commercial paper.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

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- Definition

The net cash inflow or cash outflow from issuing (borrowing) and repaying commercial paper.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
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-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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- References

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- Definition

The cash outflow due to repaying amounts borrowed by issuing commercial paper.

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-Publisher FASB
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Debt (Commercial Paper) (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018 CAD ($)	Dec. 31, 2017 CAD ($)	Dec. 31, 2016 CAD ($)	Dec. 31, 2018 USD ($)	May 05, 2018 CAD ($)	Dec. 31, 2017 USD ($)
Commercial Paper
Commercial paper, maximum borrowing capacity	$ 1,800	$ 1,300			$ 1,800
Commercial paper, outstanding	$ 1,175	$ 955		$ 862		$ 760
Commercial paper, weighted average interest rate	2.47%	1.36%		2.47%		1.36%
Commercial paper, maturity	90 days
Issuances and repayments of commercial paper
Change in commercial paper, net	$ 99	$ 379	$ 137
Maturity Less Than Ninety Days [Member]
Issuances and repayments of commercial paper
Issuance of commercial paper	8,292	4,539	3,656
Repayment of commercial paper	(8,442)	(4,160)	(3,519)
Change in commercial paper, net	(150)	379	137
Maturity Greater than 90 Days [Member]
Issuances and repayments of commercial paper
Issuance of commercial paper	1,135	0	0
Repayment of commercial paper	(886)	0	0
Change in commercial paper, net	$ 249	$ 0	$ 0