v2.4.0.8
Acquisitions and Divestitures Subsequent Event-Drop-down of Assets to EPB (Details) (Drop-Down of Assets to EPB [Member], El Paso Pipeline Partners, L.P. [Member])
Apr. 28, 2014
Ruby Pipeline Holding Company LLC [Member]
 
Business Acquisition [Line Items]  
Equity Method Investment, Ownership Percentage 50.00%
Gulf LNG Holdings Group LLC [Member]
 
Business Acquisition [Line Items]  
Equity Method Investment, Ownership Percentage 50.00%
Young Gas Storage [Member]
 
Business Acquisition [Line Items]  
Equity Method Investment, Ownership Percentage 47.50%