Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2014

Notes to Condensed Consolidated Financial Statements [Abstract]

Fair Value, by Balance Sheet Grouping [Text Block]

(Dollars in millions)	Total			Level 1		Level 2			Level 3
Long-term receivables	$	911		$	—	$	911		$	—
Customer financing notes receivable	281			—		281			—
Short-term borrowings	(407		)	—		(230		)	(177		)
Long-term debt (excluding capitalized leases)	(22,012		)	—		(21,676		)	(336		)
Long-term liabilities	(295		)	—		(295		)	—

	June 30, 2014						December 31, 2013
(Dollars in millions)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Long-term receivables	$	966		$	911		$	655		$	586
Customer financing notes receivable	288			281			394			366
Short-term borrowings	(407		)	(407		)	(388		)	(388		)
Long-term debt (excluding capitalized leases)	(19,627		)	(22,012		)	(19,807		)	(21,525		)
Long-term liabilities	(297		)	(295		)	(283		)	(253		)

Fair Value, Measurement Inputs, Disclosure [Text Block]

June 30, 2014 (Dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	921		$	921	$	—		$	—
Derivative assets	132			—		132			—
Derivative liabilities	(118		)	—		(118		)	—
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			—