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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - CREDIT RISK (Details) - CAD CAD in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Credit concentrations with respect to derivative instruments |  |
Period after which receivables are classified as past due | 30 days |
Derivative instruments |  |
Credit concentrations with respect to derivative instruments |  |
Maximum credit exposure with respect to derivative instruments | CAD 809 | CAD 681
Letters of credit provided in lieu of providing cash collateral to counterparties | 166 |
Cash collateral on asset exposure | 17 | 33
Derivative instruments | Canadian financial institutions |  |
Credit concentrations with respect to derivative instruments |  |
Maximum credit exposure with respect to derivative instruments | 47 | 58
Derivative instruments | United States financial institutions |  |
Credit concentrations with respect to derivative instruments |  |
Maximum credit exposure with respect to derivative instruments | 450 | 240
Derivative instruments | European financial institutions |  |
Credit concentrations with respect to derivative instruments |  |
Maximum credit exposure with respect to derivative instruments | 95 | 73
Derivative instruments | Asian Financial Institutions Member |  |
Credit concentrations with respect to derivative instruments |  |
Maximum credit exposure with respect to derivative instruments | 4 |
Derivative instruments | Other |  |
Credit concentrations with respect to derivative instruments |  |
Maximum credit exposure with respect to derivative instruments | CAD 213 | CAD 310

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- Definition Carrying amount as of the balance sheet date of cash collateral held for borrowed securities, for which the cash is restricted as to withdrawal or usage. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.1) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),2) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 + Details
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