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Note 11: Guarantees (Tables)
9 Months Ended
Sep. 30, 2011
Notes to Condensed Consolidated Financial Statements [Abstract] 
Product Warranty Disclosure [Text Block]
(Dollars in millions) 2011 2010
Balance as of January 1 $ 1,136 $ 1,072
Warranties and performance guarantees issued   370   310
Settlements made   (333)   (271)
Other   315   (6)
Balance as of September 30 $ 1,488 $ 1,105