The length of owned pipeline used for transporting gas and liquids through interconnected tubing, generally underground.

No definition available.

+ Details

Name:	tclp_LengthOfPipelineOwned
Namespace Prefix:	tclp_
Data Type:	num:lengthItemType
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Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
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ORGANIZATION (Details)	12 Months Ended
ORGANIZATION (Details)	Dec. 31, 2014	Mar. 31, 2014	Sep. 30, 2014
GTN
Organization
Ownership interest (as a percent)	70.00%
Northern Border
Organization
Ownership interest (as a percent)	50.00%
Bison
Organization
Ownership interest (as a percent)	100.00%
Great Lakes
Organization
Ownership interest (as a percent)	46.45%	46.45%
North Baja Pipeline, LLC
Organization
Ownership interest (as a percent)	100.00%
Tuscarora Gas Transmission Company
Organization
Ownership interest (as a percent)	100.00%
GTN
Organization
Length of pipeline owned (in miles)	1,353
Northern Border
Organization
Length of pipeline owned (in miles)	1,408
Bison
Organization
Length of pipeline owned (in miles)	303
Great Lakes
Organization
Length of pipeline owned (in miles)	2,115
North Baja Pipeline, LLC
Organization
Length of pipeline owned (in miles)	86
Tuscarora Gas Transmission Company
Organization
Length of pipeline owned (in miles)	305
TransCanada \| GTN
Organization
Remaining noncontrolling ownership interest (as a percent)	30.00%
TransCanada \| Bison
Organization
Remaining noncontrolling ownership interest (as a percent)			30.00%
TransCanada \| Great Lakes
Organization
Remaining ownership interest (as a percent)	53.55%
ONEOK Partners, L.P. \| Northern Border
Organization
Remaining ownership interest (as a percent)	50.00%