Annual report pursuant to Section 13 and 15(d)

Schedule 1—Condensed Financial Information of Registrant - Summary of Accounting Policies Footnote (Details)

v2.4.1.9
Schedule 1—Condensed Financial Information of Registrant - Summary of Accounting Policies Footnote (Details) (Parent Company [Member])
Dec. 31, 2014
mi
Parent Company [Member]
 
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]  
Length of Natural Gas Pipeline, in miles 94cqp_LengthofNaturalGasPipeline
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember