Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivatives Instruments in Statements of Financial Performance and Financial Position

(Dollars in millions)	March 31, 2016			December 31, 2015			Classification
Derivative assets not designated as hedges:
Foreign currency forward contracts	$	40		$	5		Other Current Assets
Derivative liabilities not designated as hedges:
Foreign currency forward contracts	(10		)	(14		)	Other Current Liabilities

The amount of derivative instruments’ gain or (loss) on the Consolidated Statements of Operations is in the table below.

	Three Months Ended March 31,
(Dollars in millions)	2016	2015		Classification
Foreign currency forward contracts	26	(66	)	Other, Net
Cross-currency swap contracts	—	13		Other, Net