ORGANIZATION - Ownership Interests in Natural Gas Pipeline Systems (Details) - LimitedPartnership	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
ORGANIZATION
Number of intermediate limited partnerships through which pipeline assets are owned	3	3

Represents the number of intermediate limited partnerships through which the entity owns its pipeline assets.

No definition available.

Name:	tcp_NumberOfIntermediateLimitedPartnershipsThroughWhichPipelineAssetsOwned
Namespace Prefix:	tcp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration