v3.7.0.1

Commitments and Contingencies (Details) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
XTO Energy Inc. v. QEP Field Services Company |  |
Acquisition |  |
Receivables from Customers | $ 34 | $ 31

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 due from customers for fees and charges arising from transactions related to the entity's brokerage activities and operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522 + Details
Name: | us-gaap_ReceivablesFromCustomers
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_LitigationCaseAxis=tllp_XTOEnergyInc.v.QEPFieldServicesCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |