Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

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 and presentation in the Consolidated Balance Sheets for derivative instruments as of December 31, 2019 and 2018:

(dollars in millions)	Balance Sheet Location	December 31, 2019		December 31, 2018
Derivatives designated as hedging instruments:
Foreign exchange contracts	Asset Derivatives:
	Other assets, current	$	11	$	10
	Other assets	13		12
	Total asset derivatives	$	24	$	22
	Liability Derivatives:
	Accrued liabilities	(72)		(83)
	Other long-term liabilities	(98)		(111)
	Total liability derivatives	$	(170)	$	(194)
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Asset Derivatives:
	Other assets, current	27		44
	Other assets	5		19
	Total asset derivatives	$	32	$	63
	Liability Derivatives:
	Accrued liabilities	(116)		(89)
	Other long-term liabilities	(1)		(3)
	Total liability derivatives	$	(117)	$	(92)

Reclassification out of Accumulated Other Comprehensive Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

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

	Year Ended December 31,
(dollars in millions)	2019		2018
Loss recorded in Accumulated other comprehensive loss	$	(33)	$	(307)
Loss (Gain) reclassified from Accumulated other comprehensive loss into Product sales	$	51	$	(16)

Other Income (Expense) [Member]

Derivative Instruments, Gain (Loss) [Line Items]

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

	Year Ended December 31,
(dollars in millions)	2019		2018
Foreign exchange contracts	$	46	$	115