Maturity period of term loan facility under sub tranche.

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- Definition

Number of largest customers.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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-Publisher FASB
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- Definition

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.

+ References

No definition available.

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- Definition

The effective portion of gains on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
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- Definition

The effective portion of losses on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
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- Definition

Fair value portion of notes payable.

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-Name Accounting Standards Codification
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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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- Definition

Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

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-Publisher FASB
-Name Accounting Standards Codification
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Cost of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

+ References

No definition available.

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Financial Instruments - Additional Information (Detail) CAD in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) Customer	Dec. 31, 2015 CAD	Dec. 31, 2014 USD ($)	Dec. 31, 2014 CAD
Derivative Instruments, Gain (Loss) [Line Items]
Trading Securities	$ 2,940		$ 1,337
Long-term debt due within one year	$ 211		$ 183
Debt instrument maturity period	1 year
Book value of senior notes	$ 2,300
Sales Revenue, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Number of largest customers \| Customer	6
Sales Revenue, Net [Member] \| Customer Concentration Risk [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Percentage of sales to six largest customers	83.00%
Asset-backed Securities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Face value of investments \| CAD		CAD 107		CAD 107
Trading Securities \| CAD		CAD 101		CAD 102
Fair Value, Inputs, Level 1 [Member] \| Senior Notes [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Estimated fair value of notes payable	$ 2,310
Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign exchange forward contracts, gain recognized in other comprehensive loss	31
Foreign exchange forward contracts, loss recognized in other comprehensive loss	$ (343)