Inventories

9 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consisted of the following:

(dollars in millions)	September 30, 2015			December 31, 2014
Raw materials	$	125		$	159
Work-in-process	688			827
Finished goods, including parts and subassemblies	2,022			2,150
Other	23			24
Total gross inventories	2,858			3,160
Excess of current standard costs over LIFO costs	(70		)	(86		)
Allowances	(129		)	(145		)
Total net inventories	$	2,659		$	2,929