v2.4.0.8
Segment Information - Narrative (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Segment
Jun. 30, 2013
Segment Reporting Information [Line Items]        
Number of reportable segments     2  
Revenues $ 5,152 $ 4,675 $ 10,198 $ 8,098
Intersegment Eliminations [Member]
       
Segment Reporting Information [Line Items]        
Revenues 0 0 0 0
Marketing, Gathering And Compression [Member]
       
Segment Reporting Information [Line Items]        
Revenues 3,167 2,057 6,181 3,838
Marketing, Gathering And Compression [Member] | Intersegment Eliminations [Member]
       
Segment Reporting Information [Line Items]        
Revenues (2,188) (1,933) (4,596) (3,678)
Oilfield Services [Member]
       
Segment Reporting Information [Line Items]        
Revenues 278 205 516 392
Oilfield Services [Member] | Intersegment Eliminations [Member]
       
Segment Reporting Information [Line Items]        
Revenues $ (274) $ (377) $ (544) $ (735)