Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

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No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments, excluding current portion.

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Fair value of financial and nonfinancial obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Fair Value of Non-Derivative Financial Instruments (Details) CAD in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017 CAD	Dec. 31, 2016 CAD	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Carrying and fair values of non-derivative financial instruments
Long-term debt, including current portion (Note 17)	CAD (34,677)	CAD (40,048)
Junior subordinated notes (Note 18)	(7,007)	(3,931)
Long-term debt \| $			$ 1,100	$ 850
Interest rate swap agreements
Carrying and fair values of non-derivative financial instruments
Fair value adjustments - gains (losses)	4	2
Long-term debt hedged \| $			$ 1,100	$ 850
Level II \| Carrying Amount
Carrying and fair values of non-derivative financial instruments
Long-term debt, including current portion (Note 17)	(34,741)	(40,150)
Junior subordinated notes (Note 18)	(7,007)	(3,931)
Total liabilities	(41,748)	(44,081)
Level II \| Fair Value
Carrying and fair values of non-derivative financial instruments
Long-term debt, including current portion (Note 17)	(40,180)	(45,047)
Junior subordinated notes (Note 18)	(7,233)	(3,825)
Total liabilities	CAD (47,413)	CAD (48,872)