Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans whether held-for-sale or held-in-portfolio; (2) investment securities; (3) dividend income; or (4) other investments not otherwise specified herein.

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- Definition

Principal Amount Outstanding on Loans Securitized And Held For Sale

+ Details

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- Definition

Revenue realized in the period on direct financing leases.

+ Details

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- Definition

This is the principal amount outstanding for loans which are in the process of being securitized as of the date of the statement of financial position (across all types of loans).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS140-4 and FIN46(R)-8
-Paragraph B11
-Subparagraph b(6)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 17
-Subparagraph i(4)

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

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Securitization Transactions - Additional Information (Detail) In Millions	12 Months Ended								12 Months Ended					12 Months Ended
	Mar. 31, 2011 USD ($)	Mar. 31, 2011 JPY (¥)	Mar. 31, 2010 JPY (¥)	Mar. 31, 2009 JPY (¥)	Mar. 31, 2010 Installment Loans Interests Continued To Be Held JPY (¥)	Mar. 31, 2009 Installment Loans Interests Continued To Be Held JPY (¥)	Mar. 31, 2011 Investment in securities JPY (¥)	Mar. 31, 2010 Investment in securities JPY (¥)	Mar. 31, 2010 Investment in securities Interests Continued To Be Held JPY (¥)	Mar. 31, 2009 Investment in securities Interests Continued To Be Held JPY (¥)	Mar. 31, 2011 Direct Financing Leases And Installment Loans JPY (¥)	Mar. 31, 2011 Direct Financing Leases And Installment Loans USD ($)	Mar. 31, 2010 Direct Financing Leases And Installment Loans JPY (¥)	Mar. 31, 2010 Interests Continued To Be Held JPY (¥)	Mar. 31, 2009 Interests Continued To Be Held JPY (¥)
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Revenues from interests that continue to be held, included in revenues from direct financing leases	$ 617	¥ 51,320	¥ 50,004	¥ 63,275										¥ 4,744	¥ 5,772
Revenues from interests that continue to be held, included in interest on loans and investment securities	2,042	169,808	135,166	196,161	1,630	1,476			2,378	3,469
Total assets sold on securitization							0	31,123			12,651	152	257,654
Total assets sold on securitization of which the Company and certain subsidiaries' only continuing involvement											¥ 9,158	$ 110	¥ 19,366