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Acquisitions (Tables)
3 Months Ended
Jun. 30, 2011
Acquisitions [Abstract]  
Allocation of purchase price and estimated useful lives
                 
    Fiscal Year 2012     Estimated  
(dollars in millions)   Acquisitions     Useful Life  
 
Finite-lived intangible assets(1)
  $ 11     9 years
Goodwill
    16     Indefinite
Other assets net of other liabilities assumed
    3        
 
 
               
Purchase Price
  $ 30          
 
 
(1)   Includes customer relationships and trade names.