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Commitments and Contingencies (Tables)
 6 Months Ended
Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
 
Six Months Ended June 30
 
2014
 
2013
 
(Dollars in Millions)
Beginning balance
$
49

 
$
57

Accruals for products shipped
8

 
8

Changes in estimates
—

 
(3
)
Currency
—

 
(2
)
Settlements
(8
)
 
(8
)
  Reclassified to held for sale
(2
)
 
—

Ending balance
$
47

 
$
52