Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

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

	Asset Derivatives				Liability Derivatives
(Dollars in millions)	March 31, 2015		December 31, 2014		March 31, 2015		December 31, 2014
Derivatives designated as hedging instruments	$	34	$	3	$	380	$	248
Derivatives not designated as hedging instruments	97		139		230		71

Schedule of Derivative Instruments, Loss in Statement of Financial Performance [Table Text Block]

	Quarter Ended March 31,
(Dollars in millions)	2015			2014
Loss recorded in Accumulated other comprehensive loss	$	(184	)	$	(80	)
Loss reclassified from Accumulated other comprehensive loss into Product sales (effective portion)	$	57		$	18