Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Inventories

Inventories include:

	March 31, 2014		December 31, 2013
($ in millions)
Finished products	$	1,245	$	1,156
Work in process	168		160
Raw materials	454		440
Supplies	62		68
Total	$	1,929	$	1,824