Inventories (Tables)

3 Months Ended

Mar. 31, 2015

Energy Related Inventory [Abstract]

Inventory Disclosure Table

The following summarizes the major classes of inventories included in other current assets:

millions	March 31, 2015		December 31, 2014
Oil	$	97	$	133
Natural gas	3		27
NGLs	70		83
Total inventories	$	170	$	243