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FAIR VALUE MEASUREMENTS (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
4.65% Senior Notes due 2021    
Financial Instruments    
Stated interest rate (as a percent) 4.65%us-gaap_DebtInstrumentInterestRateStatedPercentage
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5.09% Unsecured Senior Notes due 2015    
Financial Instruments    
Stated interest rate (as a percent) 5.09%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= tclp_UnsecuredSeniorNotesDue2015At5.09PercentMember		 5.09%us-gaap_DebtInstrumentInterestRateStatedPercentage
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5.29% Unsecured Senior Notes due 2020    
Financial Instruments    
Stated interest rate (as a percent) 5.29%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= tclp_UnsecuredSeniorNotesDue2020At5.29PercentMember		 5.29%us-gaap_DebtInstrumentInterestRateStatedPercentage
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5.69% Unsecured Senior Notes due 2035    
Financial Instruments    
Stated interest rate (as a percent) 5.69%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
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3.82% Series D Senior Notes due 2017    
Financial Instruments    
Stated interest rate (as a percent) 3.82%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= tclp_SeniorNotesSeriesDDue2017At3.82PercentMember		 3.82%us-gaap_DebtInstrumentInterestRateStatedPercentage
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Carrying Value.    
Financial Instruments    
Debt 1,695us-gaap_DebtInstrumentFairValue
/ us-gaap_FairValueByMeasurementBasisAxis
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Carrying Value. | Senior Credit Facility due 2017 | Senior revolving credit facility    
Financial Instruments    
Debt 330us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= tclp_SeniorCreditFacilityDue20November2017Member
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= us-gaap_RevolvingCreditFacilityMember
Carrying Value. | Term Loan Facility due 2018    
Financial Instruments    
Debt 500us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
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/ us-gaap_FairValueByMeasurementBasisAxis
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= tclp_TermLoanDue2018Member
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Carrying Value. | Short-Term Loan due 2015 | Term loan    
Financial Instruments    
Debt 170us-gaap_DebtInstrumentFairValue
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/ us-gaap_ShortTermDebtTypeAxis
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Carrying Value. | 4.65% Senior Notes due 2021    
Financial Instruments    
Debt 350us-gaap_DebtInstrumentFairValue
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= tclp_SeniorNotesDue2021At4.65PercentMember
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Carrying Value. | 5.09% Unsecured Senior Notes due 2015    
Financial Instruments    
Debt 75us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= tclp_UnsecuredSeniorNotesDue2015At5.09PercentMember
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= tclp_UnsecuredSeniorNotesDue2015At5.09PercentMember
/ us-gaap_FairValueByMeasurementBasisAxis
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Carrying Value. | 5.29% Unsecured Senior Notes due 2020    
Financial Instruments    
Debt 100us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= tclp_UnsecuredSeniorNotesDue2020At5.29PercentMember
/ us-gaap_FairValueByMeasurementBasisAxis
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= tclp_UnsecuredSeniorNotesDue2020At5.29PercentMember
/ us-gaap_FairValueByMeasurementBasisAxis
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Carrying Value. | 5.69% Unsecured Senior Notes due 2035    
Financial Instruments    
Debt 150us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= tclp_UnsecuredSeniorNotesDue2035At5.69PercentMember
/ us-gaap_FairValueByMeasurementBasisAxis
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Carrying Value. | 3.82% Series D Senior Notes due 2017    
Financial Instruments    
Debt 20us-gaap_DebtInstrumentFairValue
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Fair Value | Level 2    
Financial Instruments    
Debt 1,751us-gaap_DebtInstrumentFairValue
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Fair Value | Level 2 | Senior Credit Facility due 2017 | Senior revolving credit facility    
Financial Instruments    
Debt 330us-gaap_DebtInstrumentFairValue
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Fair Value | Level 2 | Term Loan Facility due 2018    
Financial Instruments    
Debt 500us-gaap_DebtInstrumentFairValue
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Fair Value | Level 2 | Short-Term Loan due 2015 | Term loan    
Financial Instruments    
Debt 170us-gaap_DebtInstrumentFairValue
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/ us-gaap_ShortTermDebtTypeAxis
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Fair Value | Level 2 | 4.65% Senior Notes due 2021    
Financial Instruments    
Debt 375us-gaap_DebtInstrumentFairValue
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Fair Value | Level 2 | 5.09% Unsecured Senior Notes due 2015    
Financial Instruments    
Debt 76us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= tclp_UnsecuredSeniorNotesDue2015At5.09PercentMember
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Fair Value | Level 2 | 5.29% Unsecured Senior Notes due 2020    
Financial Instruments    
Debt 111us-gaap_DebtInstrumentFairValue
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Fair Value | Level 2 | 5.69% Unsecured Senior Notes due 2035    
Financial Instruments    
Debt 168us-gaap_DebtInstrumentFairValue
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= tclp_UnsecuredSeniorNotesDue2035At5.69PercentMember
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Fair Value | Level 2 | 3.82% Series D Senior Notes due 2017    
Financial Instruments    
Debt 21us-gaap_DebtInstrumentFairValue
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