Guarantees (Tables)

9 Months Ended

Sep. 30, 2015

Service and Product Warranties and Product Performance Guarantees [Abstract]

Product Warranty Disclosure [Table Text Block]

(Dollars in millions)	2015			2014
Balance as of January 1	$	1,264		$	1,324
Warranties and performance guarantees issued	208			180
Settlements made	(217		)	(242		)
Other	(56		)	(33		)
Balance as of September 30	$	1,199		$	1,229