Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2014

Notes to Condensed Consolidated Financial Statements [Abstract]

Fair Value, by Balance Sheet Grouping [Text Block]

	September 30, 2014						December 31, 2013
(Dollars in millions)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Long-term receivables	$	1,016		$	954		$	655		$	586
Customer financing notes receivable	270			262			394			366
Short-term borrowings	(347		)	(347		)	(388		)	(388		)
Long-term debt (excluding capitalized leases)	(19,614		)	(21,992		)	(19,807		)	(21,525		)
Long-term liabilities	(294		)	(268		)	(283		)	(253		)

(Dollars in millions)	Total			Level 1		Level 2			Level 3
Long-term receivables	$	954		$	—	$	954		$	—
Customer financing notes receivable	262			—		262			—
Short-term borrowings	(347		)	—		(135		)	(212		)
Long-term debt (excluding capitalized leases)	(21,992		)	—		(21,644		)	(348		)
Long-term liabilities	(268		)	—		(268		)	—

Fair Value, Measurement Inputs, Disclosure [Text Block]

September 30, 2014 (Dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	863		$	863	$	—		$	—
Derivative assets	100			—		100			—
Derivative liabilities	(217		)	—		(217		)	—
Nonrecurring fair value measurements:
Business dispositions	44			—		44			—

December 31, 2013 (Dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	988		$	988	$	—		$	—
Derivative assets	90			—		90			—
Derivative liabilities	(157		)	—		(157		)	—
Nonrecurring fair value measurements:
Business dispositions	66			—		66			—