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Inventories
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventories

3. Inventories

Inventories consisted of the following:

 

 

March 31,

 

 

December 31,

 

 

 

2015

 

 

2014

 

 

 

(In millions)

 

Crude oil and natural gas liquids

 

$

284

 

 

$

246

 

Materials and supplies

 

 

262

 

 

 

281

 

Total inventories

 

$

546

 

 

$

527