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Commitments and Contingent Liabilities Commitments and Contingent Liabilities (Tables)
 6 Months Ended
Jun. 30, 2012
Commitments and Contingencies Disclosure [Abstract]  
Number Of Claims Filed [Table Text Block]
 
Six Months Ended
 
Year Ended
(Dollars in millions)
June 30, 2012
 
December 31, 2011
Pending claims, beginning of period
78,500

 
83,700

New claims filed
1,050

 
2,200

Claims settled/dismissed
(5,200
)
 
(7,400
)
Pending claims, end of period
74,350

 
78,500

Payments (1)
$
4

 
$
23