Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2013

Notes to Condensed Consolidated Financial Statements [Abstract]

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

	June 30, 2013				December 31, 2012
(Dollars in millions)	Derivatives designated as hedging instruments		Derivatives not designated as hedging instruments		Derivatives designated as hedging instruments		Derivatives not designated as hedging instruments
Balance Sheet Asset Locations:
Other assets, current	$	8	$	82	$	48	$	47
Other assets	3		5		30		3
	11		87		78		50
Total Asset Derivative Contracts			$	98			$	128
Balance Sheet Liability Locations:
Accrued liabilities	$	53	$	111	$	10	$	136
Other long-term liabilities	40		1		1		2
	93		112		11		138
Total Liability Derivative Contracts			$	205			$	149

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Text Block]

	Quarter Ended June 30,						Six Months Ended June 30,
(Dollars in millions)	2013			2012			2013			2012
Loss recorded in Accumulated other comprehensive loss	$	(64	)	$	(155	)	$	(161	)	$	(63	)
Loss reclassified from Accumulated other comprehensive loss into Product sales (effective portion)	$	(15	)	$	(8	)	$	(23	)	$	(19	)

Schedule of Foreign Exchange Contracts Not Designated as Hedges, Gain (Loss) In Statement of Financial Performance [TextBlock]

	Quarter Ended June 30,						Six Months Ended June 30,
(Dollars in millions)	2013			2012			2013		2012
(Loss) gain recognized in Other income, net	$	(9	)	$	(78	)	$	23	$	(40	)

Fair Value, Measurement Inputs, Disclosure [Text Block]

(Dollars in millions)	Total Carrying Value at December 31, 2012			Quoted price in active markets (Level 1)		Significant other observable inputs (Level 2)			Unobservable inputs (Level 3)
Recurring fair value measurements:
Available-for-sale securities	$	781		$	781	$	—		$	—
Derivative assets	128			—		128			—
Derivative liabilities	(149		)	—		(149		)	—
Nonrecurring fair value measurements:
Equity method investment	432			—		432			—
Business dispositions	84			—		84			—

(Dollars in millions)	Total Carrying Value at June 30, 2013			Quoted price in active markets (Level 1)		Significant other observable inputs (Level 2)			Unobservable inputs (Level 3)
Recurring fair value measurements:
Available-for-sale securities	$	827		$	827	$	—		$	—
Derivative assets	98			—		98			—
Derivative liabilities	(205		)	—		(205		)	—
Nonrecurring fair value measurements:
Business dispositions	13			—		13			—

Fair Value, by Balance Sheet Grouping [Text Block]

	June 30, 2013						December 31, 2012
(Dollars in millions)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Long-term receivables	$	646		$	586		$	499		$	464
Customer financing notes receivable	408			354			375			371
Short-term borrowings	(196		)	(196		)	(503		)	(503		)
Long-term debt (excluding capitalized leases)	(21,412		)	(21,890		)	(22,665		)	(25,606		)
Long-term liabilities	(279		)	(250		)	(182		)	(167		)

(Dollars in millions)	Total Fair Value at June 30, 2013			Quoted price in active markets (Level 1)		Significant other observable inputs (Level 2)			Unobservable inputs (Level 3)
Long-term receivables	$	586		$	—	$	586		$	—
Customer financing notes receivable	354			—		354			—
Short-term borrowings	(196		)	—		(50		)	(146		)
Long-term debt (excluding capitalized leases)	(21,890		)	—		(21,787		)	(103		)
Long-term liabilities	(250		)	—		(250		)	—