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Housing Loans and Deposits From Customers in the Banking Business (Tables)
12 Months Ended
Mar. 31, 2011
Housing Loans and Deposits From Customers in the Banking Business (Tables) [Abstract]  
Deposits from customers in the banking business
At March 31, 2011, aggregate amounts of annual maturities of time deposits with a remaining term of more than one year are as follows:
 
         
Fiscal year ending March 31   Yen in millions
 
2013
    20,864  
2014
    13,149  
2015
    1,990  
2016
    8,788  
2017
    1,459  
Later years
    26,818  
         
Total
    73,068