v3.5.0.2

Description of Business Narrative (Details) $ in Millions |  |  |  |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 12, 2015 USD ($) terminals | Jul. 22, 2015 | Dec. 02, 2014 USD ($) facility | Jun. 23, 2014 USD ($) | Dec. 06, 2013 terminals | Jun. 19, 2013 USD ($) | Jun. 01, 2013 terminals | Dec. 31, 2015 USD ($) mi terminals systems system facility | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Sep. 30, 2015 terminals | Jul. 01, 2014 terminals
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred income tax expense | $ |  |  |  |  |  |  |  |  | $ 1 |  |  |  |  |
Environmental liability insurance deductible | $ |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Capitalized interest costs | $ |  |  |  |  |  |  |  |  | 9 | $ 6 |  | $ 2 |  |
Goodwill | $ |  |  |  |  |  |  |  |  | $ 130 | $ 164 | [1] |  |  |
Number of assets |  |  |  |  |  |  |  |  | 29 |  |  |  |  |
Percentage of revenue |  |  |  |  |  |  |  |  | 55.00% | 83.00% |  | 87.00% |  |
Borrowings under revolving credit agreement | $ | [2] |  |  |  |  |  |  |  | $ 476 | $ 646 |  | $ 794 |  |
Fractionation Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | facility |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Regulated Common Carrier Pipeline |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Jet Fuel Pipeline |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Regulated Common Carrier Refined Products Pipeline System |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Crude Oil And Refined Products Terminals And Storage Facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  | 1 |  |  |  |  |  |  | 27 |  |  |  |  |
Marine Terminals |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  |  |  |  | 4 |  |  |  |  |
Rail Car Unloading Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | facility |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Petroleum Coke Handling And Storage Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | facility |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Crude oil and refined products pipeline |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of miles | mi |  |  |  |  |  |  |  |  | 130 |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, estimated useful life (years) |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |
Financial instruments, outstanding term |  |  |  |  |  |  |  |  | 90 days |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of trade payables outstanding |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |
Property, plant and equipment, estimated useful life (years) |  |  |  |  |  |  |  |  | 28 years |  |  |  |  |
Cash equivalents maturity period (months) |  |  |  |  |  |  |  |  | 3 months |  |  |  |  |
Percent of trade receivables outstanding |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |
LA Storage and Handling Assets Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | facility |  |  |  |  |  |  |  |  | 97 |  |  |  |  |
Effective date of acquisition |  | Nov. 12, 2015 |  |  |  |  |  |  |  |  |  |  |  |
Purchase price | $ |  | $ 500 |  |  |  |  |  |  |  |  |  |  |  |
Percent of fee interest |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |
High plains System |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | system |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Regulated common carrier refined products pipeline system |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental liability insurance deductible | $ |  |  |  |  |  |  |  |  | $ 5 |  |  |  |  |
West Coast Logistics Assets Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price | $ |  |  |  |  | $ 270 |  |  |  |  |  |  |  |  |
West Coast Logistics Assets Acquisition | Truck terminals |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 3
West Coast Logistics Assets Acquisition | Storage tanks |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 10
West Coast Logistics Assets Acquisition | Rail loading and unloading facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 2
West Coast Logistics Assets Acquisition | Refined products pipeline |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  |  |  |  |  |  |  |  | 1 |
Los Angeles Logistics Assets Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective date of acquisition |  |  |  |  |  | Dec. 06, 2013 |  |  |  |  |  |  |  |
Los Angeles Logistics Assets Acquisition | Marine storage terminals |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  | 1 |  |  |  |  |  |  |  |
Los Angeles Logistics Assets Acquisition | Marine Terminals |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  | 2 |  |  |  |  |  |  |  |
Los Angeles Logistics Assets Acquisition | Products terminal |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  | 1 |  |  |  |  |  |  |  |
Los Angeles Logistics Assets Acquisition | Petroleum Coke Handling And Storage Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  | 1 |  |  |  |  |  |  |  |
Los Angeles Logistics Assets Acquisition | Minimum | Crude oil and refined products pipeline |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of miles |  |  |  |  |  | 100 |  |  |  |  |  |  |  |
Los Angeles Terminal Assets Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective date of acquisition |  |  |  |  |  |  |  | Jun. 01, 2013 |  |  |  |  |  |
Los Angeles Terminal Assets Acquisition | Marketing terminals |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets |  |  |  |  |  |  |  | 6 |  |  |  |  |  |
Rockies Natural Gas Business Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | $ |  |  |  |  |  |  |  |  | $ 121 |  |  |  |  |
Effective date of acquisition |  |  | Jul. 22, 2015 | Dec. 02, 2014 |  |  |  |  |  |  |  |  |  |
Purchase price | $ |  |  |  | $ 2,500 |  |  |  |  |  |  |  |  |  |
Northwest Products System |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | $ |  |  |  |  |  |  |  |  |  | $ 9 |  |  |  |
Effective date of acquisition |  |  |  |  |  |  | Jun. 19, 2013 |  |  |  |  |  |  |
Purchase price | $ |  |  |  |  |  |  | $ 355 |  |  |  |  |  |  |
Williston Gathering System |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | system |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Uinta Basin Gathering System |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | systems |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Green River System |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | system |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Vermillion Gathering System |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | system |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Gathering | Rockies Natural Gas Business Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | $ |  |  |  |  |  |  |  |  | $ 22 |  |  |  |  |
Processing | Gas Processing Complexes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | facility |  |  |  |  |  |  |  |  | 4 |  |  |  |  |
Processing | Fractionation Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of assets | facility |  |  |  |  |  |  |  |  | 1 |  |  |  |  |
Processing | Rockies Natural Gas Business Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | $ |  |  |  |  |  |  |  |  | $ 99 |  |  |  |  |
Crude oil |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent retained for volume losses |  |  |  |  |  |  |  |  | 0.20% |  |  |  |  |
Distillates | Northwest Products System |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent retained for volume losses |  |  |  |  |  |  |  |  | 0.125% |  |  |  |  |
Refined products |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent retained for volume losses |  |  |  |  |  |  |  |  | 0.25% |  |  |  |  |
Refined products | Northwest Products System |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent retained for volume losses |  |  |  |  |  |  |  |  | 0.25% |  |  |  |  |
[1] | Adjusted to include the historical results of the Predecessors. See Notes 1 and 2 for further discussion.
[2] | Adjusted to include the historical results of the Predecessors. See Notes 1 and 2 for further discussion.

X
- Definition Environmental Liability Insurance Deductible + References No definition available. + Details
Name: | tllp_EnvironmentalLiabilityInsuranceDeductible
Namespace Prefix: | tllp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum number of months until maturity for short-term investments to still be classified as cash equivalents. + References No definition available. + Details
Name: | tllp_MaturityPeriodOfShortTermInvestments
Namespace Prefix: | tllp_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of assets relating to a particular asset category used in an operating segment. + References No definition available. + Details
Name: | tllp_NumberOfAssets
Namespace Prefix: | tllp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Miles + References No definition available. + Details
Name: | tllp_NumberOfMiles
Namespace Prefix: | tllp_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage of total trade payables with outstanding balances greater than 90 days. + References No definition available. + Details
Name: | tllp_PercentOfTradePayablesWithBalancesOutstanding
Namespace Prefix: | tllp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of total trade receivables with outstanding balances greater than 90 days. + References No definition available. + Details
Name: | tllp_PercentOfTradeReceivablesWithBalancesOutstanding
Namespace Prefix: | tllp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percent of fee interest + References No definition available. + Details
Name: | tllp_Percentoffeeinterest
Namespace Prefix: | tllp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percent of products transported to be retained to compensate for volume losses due to pressure and temperature changes, evaporation and variances in other measurement methods. Term of a transportation agreement. + References No definition available. + Details
Name: | tllp_ProductsRetainedForVolumeLossesPercent
Namespace Prefix: | tllp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e845-128460 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Acquisition Date -URI http://asc.fasb.org/extlink&oid=6919109 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e848-128460 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Deferred Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6510177 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Subsection 7 + Details
Name: | us-gaap_DeferredIncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssumptionsExpectedTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of interest capitalized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
Name: | us-gaap_InterestCostsCapitalized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_FractionationFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_RegulatedCommonCarrierPipelineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_JetFuelPipelineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_RegulatedCommonCarrierRefinedProductsPipelineSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_CrudeOilAndRefinedProductsTerminalsAndStorageFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_MarineTerminalsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_RailCarUnloadingFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_PetroleumCokeHandlingAndStorageFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=naics_ZZ486110
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_LAStorageandHandlingAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_HighplainsSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_PipelinesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_WestCoastLogisticsAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_TruckTerminalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_StorageTankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_RailLoadingAndunloadingFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_RefinedProductsPipelineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_LosAngelesLogisticsAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_MarineStorageTerminalsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_ProductsTerminalsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_LosAngelesTerminalAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_MarketingTerminalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_RockiesNaturalGasBusinessAcquisitionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_NorthwestProductsSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_WillistonGatheringSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_UintaBasinGatheringSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_GreenRiverSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=tllp_VermillionGatheringSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=tllp_ProcessingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=tllp_GasProcessingComplexesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesInventoryAxis=us-gaap_CrudeOilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesInventoryAxis=tllp_DistillatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesInventoryAxis=us-gaap_PublicUtilitiesInventoryPetroleumProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |