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Information about Non Consolidated VIEs (Detail)
In Millions
Mar. 31, 2011
USD ($)
Mar. 31, 2011
JPY (¥)
Mar. 31, 2010
JPY (¥)
Mar. 31, 2011
Liquidating Customer Assets
USD ($)
Mar. 31, 2011
Liquidating Customer Assets
JPY (¥)
Mar. 31, 2010
Liquidating Customer Assets
JPY (¥)
Mar. 31, 2011
Acquisition Of Real Estate And Real Estate Development Projects For Customers
USD ($)
Mar. 31, 2011
Acquisition Of Real Estate And Real Estate Development Projects For Customers
JPY (¥)
Mar. 31, 2010
Acquisition Of Real Estate And Real Estate Development Projects For Customers
JPY (¥)
Mar. 31, 2011
Acquisition Of Real Estate For The Company And Its Subsidiaries Real Estate Related Business
USD ($)
Mar. 31, 2010
Acquisition Of Real Estate For The Company And Its Subsidiaries Real Estate Related Business
JPY (¥)
Mar. 31, 2011
Corporate Rehabilitation Support Business
USD ($)
Mar. 31, 2010
Corporate Rehabilitation Support Business
JPY (¥)
Mar. 31, 2011
Investment in securities
USD ($)
Mar. 31, 2011
Investment in securities
JPY (¥)
Mar. 31, 2010
Investment in securities
JPY (¥)
Mar. 31, 2011
Securitizing Financial Assets
USD ($)
Mar. 31, 2010
Securitizing Financial Assets
JPY (¥)
Mar. 31, 2011
Securitization Of Commercial Mortgage Loans Originated By Third Parties
USD ($)
Mar. 31, 2011
Securitization Of Commercial Mortgage Loans Originated By Third Parties
JPY (¥)
Mar. 31, 2010
Securitization Of Commercial Mortgage Loans Originated By Third Parties
JPY (¥)
Mar. 31, 2011
Other
USD ($)
Mar. 31, 2011
Other
JPY (¥)
Mar. 31, 2010
Other
JPY (¥)
Variable Interest Entity [Line Items]                                                
Total assets $ 59,155 ¥ 4,918,774 ¥ 703,457 [1] $ 802 ¥ 66,710 ¥ 80,585 [1] $ 13,111 ¥ 1,090,147 ¥ 622,872 [1] $ 0 ¥ 0 [1] $ 0 ¥ 0 [1] $ 13,747 ¥ 1,143,069 ¥ 0 [1] $ 0 ¥ 0 [1] $ 30,487 ¥ 2,535,037 ¥ 0 [1] $ 1,008 ¥ 83,811 ¥ 0 [1]
Specified bonds and non-recourse loans 2,167 180,150 19,863 [1] 13 1,073 2,540 [1] 2,097 174,380 17,323 [1] 0 0 [1] 0 0 [1] 0 0 0 [1] 0 0 [1] 48 4,000 0 [1] 9 697 0 [1]
Investments 1,333 110,803 51,933 [1] 84 6,979 10,075 [1] 635 52,850 41,858 [1] 0 0 [1] 0 0 [1] 269 22,349 0 [1] 0 0 [1] 307 25,493 0 [1] 38 3,132 0 [1]
Maximum exposure to loss $ 4,108 [2] ¥ 341,581 [2] ¥ 119,084 [1],[2] $ 97 [2] ¥ 8,052 [2] ¥ 12,615 [1],[2] $ 3,138 [2] ¥ 260,935 [2] ¥ 106,469 [1],[2] $ 0 [2] ¥ 0 [1],[2] $ 0 [2] ¥ 0 [1],[2] $ 449 [2] ¥ 37,287 [2] ¥ 0 [1],[2] $ 0 [2] ¥ 0 [1],[2] $ 378 [2] ¥ 31,478 [2] ¥ 0 [1],[2] $ 46 [2] ¥ 3,829 [2] ¥ 0 [1],[2]
[1] Until March 31, 2010, the Company and its subsidiaries had made disclosures according to ASC810-10 before amendment.
[2] Maximum exposure to loss includes remaining balance of commitments that could require the Company and its subsidiaries to provide investments or loans to the VIE.