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Minimum Lease Payments Receivable Due in Each of the Next Five Years and Thereafter (Detail) (Direct financing leases) In Millions | Mar. 31, 2011 USD ($) | Mar. 31, 2011 JPY (¥)
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Leases Disclosure [Line Items] |  |
2012 | $ 3,475 | ¥ 288,962
2013 | 2,605 | 216,623
2014 | 1,796 | 149,300
2015 | 1,021 | 84,905
2016 | 636 | 52,865
Thereafter | 1,623 | 134,952
Total | $ 11,156 | ¥ 927,607

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