Inventories (Tables)

6 Months Ended

Jun. 30, 2016

Energy Related Inventory [Abstract]

Inventory Disclosure Table

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

millions	June 30, 2016		December 31, 2015
Oil	$	111	$	116
Natural gas	28		36
NGLs	77		64
Total inventories	$	216	$	216