v2.4.0.8
Business Combinations Business Combinations (Narrative) (Details) (Plains Pipeline Acquisition [Member], USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
mi
New Mexico System [Member]
 
Business Acquisition [Line Items]  
Pipeline Length 250
Payments to Acquire Businesses, Net of Cash Acquired $ 57.0
Rocky Mountains [Member]
 
Business Acquisition [Line Items]  
Pipeline Length 550
Payments to Acquire Businesses, Net of Cash Acquired $ 135.0
Number of Pipeline Terminals 4
Storage Capacity 1,700,000