Inventories (Tables)

12 Months Ended

Dec. 31, 2013

Table Text Block [Abstract]

Inventory Disclosure Table

The following summarizes the major classes of inventories, included in other current assets, at December 31:

millions	2013		2012
Crude oil	$	88	$	91
Natural gas	43		48
NGLs	79		37
Total	$	210	$	176