Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2017

Derivative Instruments, Gain (Loss) [Line Items]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following table summarizes the fair value of derivative instruments as of September 30, 2017 and December 31, 2016, which consist solely of foreign exchange contracts:

	Asset Derivatives				Liability Derivatives
(Dollars in millions)	September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016
Derivatives designated as hedging instruments	$	295	$	15	$	15	$	196
Derivatives not designated as hedging instruments	95		155		75		158

Reclassification out of Accumulated Other Comprehensive Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Derivative Instruments, Gain (Loss) [Table Text Block]

The amount of gains and losses related to the Company's derivative financial instruments was as follows:

	Quarter Ended September 30,						Nine Months Ended September 30,
(Dollars in millions)	2017			2016			2017			2016
Gain (loss) recorded in Accumulated other comprehensive loss	$	310		$	(7	)	$	440		$	188
(Gain) loss reclassified from Accumulated other comprehensive loss into Product sales (effective portion)	(24		)	32			(14		)	139

Other Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Derivative Instruments, Gain (Loss) [Table Text Block]

The effect on the Condensed Consolidated Statement of Operations of foreign exchange contracts not designated as hedging instruments was as follows:

	Quarter Ended September 30,				Nine Months Ended September 30,
(Dollars in millions)	2017		2016		2017		2016
Gain recognized in Other income, net	$	10	$	19	$	50	$	49