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Schedule of Long Term Debt Repayment (Detail) (JPY ¥)
In Millions, unless otherwise specified
Mar. 31, 2014
Mar. 31, 2013
Debt Instrument [Line Items]    
2015 ¥ 706,325  
2016 766,654  
2017 806,441  
2018 697,123  
2019 374,957  
Thereafter 507,374  
Total ¥ 3,858,874 ¥ 4,061,534