Financial Instruments (Tables)

6 Months Ended

Jun. 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 June 30, 2017 and December 31, 2016, which consist solely of foreign exchange contracts:

	Asset Derivatives				Liability Derivatives
(Dollars in millions)	June 30, 2017		December 31, 2016		June 30, 2017		December 31, 2016
Derivatives designated as hedging instruments	$	44	$	15	$	73	$	196
Derivatives not designated as hedging instruments	124		155		69		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 June 30,				Six Months Ended June 30,
(Dollars in millions)	2017		2016		2017		2016
Gain recorded in Accumulated other comprehensive loss	$	66	$	36	$	130	$	195
Loss reclassified from Accumulated other comprehensive loss into Product sales (effective portion)	5		45		10		107

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 June 30,				Six Months Ended June 30,
(Dollars in millions)	2017		2016		2017		2016
Gain recognized in Other income, net	$	28	$	15	$	40	$	30