XML 150 R139.htm IDEA: XBRL DOCUMENT
v3.19.1

RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - FAIR VALUE OF DERIVATIVES (Details) - CAD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Fair Value of Derivatives |  |
Short-term portion of derivative assets | $ 498 | $ 296
Current derivative liabilities | (1,234) | (1,130)
Fair Value | (3,210) | (2,192)
Forward currency contracts |  |
Fair Value of Derivatives |  |
Fair Value | (2,718) | (1,383)
Interest rate contracts |  |
Fair Value of Derivatives |  |
Fair Value | (515) | (348)
Commodity contracts |  |
Fair Value of Derivatives |  |
Fair Value | 30 | (457)
Other contracts |  |
Fair Value of Derivatives |  |
Fair Value | (7) | (4)
Fair Value |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 498 | 296
Long-term derivative assets | 119 | 181
Current derivative liabilities | (1,234) | (1,130)
Long-term derivative liabilities | (2,593) | (1,539)
Fair Value | (3,210) | (2,192)
Fair Value | Forward currency contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 47 | 143
Long-term derivative assets | 62 | 145
Current derivative liabilities | (615) | (359)
Long-term derivative liabilities | (2,212) | (1,312)
Fair Value | (2,718) | (1,383)
Fair Value | Interest rate contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 22 | 8
Long-term derivative assets | 5 | 13
Current derivative liabilities | (341) | (329)
Long-term derivative liabilities | (201) | (40)
Fair Value | (515) | (348)
Fair Value | Commodity contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 429 | 145
Long-term derivative assets | 52 | 23
Current derivative liabilities | (273) | (439)
Long-term derivative liabilities | (178) | (186)
Fair Value | 30 | (457)
Fair Value | Other contracts |  |
Fair Value of Derivatives |  |
Current derivative liabilities | (5) | (3)
Long-term derivative liabilities | (2) | (1)
Fair Value |  | (4)
Level 1 | Fair Value |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 24 | 1
Current derivative liabilities | (7) | (13)
Fair Value | 17 | (12)
Level 1 | Fair Value | Commodity contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 24 | 1
Current derivative liabilities | (7) | (13)
Fair Value | 17 | (12)
Level 2 | Fair Value |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 114 | 181
Long-term derivative assets | 97 | 160
Current derivative liabilities | (989) | (778)
Long-term derivative liabilities | (2,438) | (1,356)
Fair Value | (3,216) | (1,793)
Level 2 | Fair Value | Forward currency contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 47 | 143
Long-term derivative assets | 62 | 145
Current derivative liabilities | (615) | (359)
Long-term derivative liabilities | (2,212) | (1,312)
Fair Value | (2,718) | (1,383)
Level 2 | Fair Value | Interest rate contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 22 | 8
Long-term derivative assets | 5 | 13
Current derivative liabilities | (341) | (329)
Long-term derivative liabilities | (201) | (40)
Fair Value | (515) | (348)
Level 2 | Fair Value | Commodity contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 45 | 30
Long-term derivative assets | 30 | 2
Current derivative liabilities | (28) | (87)
Long-term derivative liabilities | (23) | (3)
Fair Value | 24 | (58)
Level 2 | Fair Value | Other contracts |  |
Fair Value of Derivatives |  |
Current derivative liabilities | (5) | (3)
Long-term derivative liabilities | (2) | (1)
Fair Value | (7) | (4)
Level 3 | Fair Value |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 360 | 114
Long-term derivative assets | 22 | 21
Current derivative liabilities | (238) | (339)
Long-term derivative liabilities | (155) | (183)
Fair Value | (11) | (387)
Level 3 | Fair Value | Commodity contracts |  |
Fair Value of Derivatives |  |
Short-term portion of derivative assets | 360 | 114
Long-term derivative assets | 22 |
Current derivative liabilities | (238) | (339)
Long-term derivative liabilities | (155) | (183)
Fair Value | $ (11) | (387)
Level 3 | Fair Value | Other contracts |  |
Fair Value of Derivatives |  |
Long-term derivative liabilities |  | $ 0

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssetsCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
Name: | us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssetsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeLiabilitiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeLiabilitiesNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_OtherContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |