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v2.3.0.11

Changes in Goodwill by Reportable Segment (Detail) In Millions | 12 Months Ended
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Mar. 31, 2011 USD ($) | Mar. 31, 2011 JPY (¥) | Mar. 31, 2010 JPY (¥) | Mar. 31, 2009 JPY (¥) | Mar. 31, 2011 Corporate Financial Services USD ($) | Mar. 31, 2011 Corporate Financial Services JPY (¥) | Mar. 31, 2010 Corporate Financial Services JPY (¥) | Mar. 31, 2009 Corporate Financial Services JPY (¥) | Mar. 31, 2011 Maintenance Leasing USD ($) | Mar. 31, 2011 Maintenance Leasing JPY (¥) | Mar. 31, 2010 Maintenance Leasing JPY (¥) | Mar. 31, 2009 Maintenance Leasing JPY (¥) | Mar. 31, 2011 Real Estate USD ($) | Mar. 31, 2011 Real Estate JPY (¥) | Mar. 31, 2010 Real Estate JPY (¥) | Mar. 31, 2009 Real Estate JPY (¥) | Mar. 31, 2011 Investment Banking USD ($) | Mar. 31, 2011 Investment Banking JPY (¥) | Mar. 31, 2010 Investment Banking JPY (¥) | Mar. 31, 2009 Investment Banking JPY (¥) | Mar. 31, 2011 Retail USD ($) | Mar. 31, 2011 Retail JPY (¥) | Mar. 31, 2010 Retail JPY (¥) | Mar. 31, 2009 Retail JPY (¥) | Mar. 31, 2011 Overseas USD ($) | Mar. 31, 2011 Overseas JPY (¥) | Mar. 31, 2010 Overseas JPY (¥) | Mar. 31, 2009 Overseas JPY (¥)
Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | $ 920 |  | ¥ 76,484 |  | ¥ 80,834 |  | ¥ 84,096 |  | $ 16 |  | ¥ 1,332 |  | ¥ 1,159 |  | ¥ 3,046 |  | $ 3 |  | ¥ 282 |  | ¥ 282 |  | ¥ 282 |  | $ 223 |  | ¥ 18,536 |  | ¥ 19,230 |  | ¥ 17,845 |  | $ 87 |  | ¥ 7,199 |  | ¥ 8,839 |  | ¥ 9,977 |  | $ 54 |  | ¥ 4,452 |  | ¥ 4,452 |  | ¥ 4,452 |  | $ 537 |  | ¥ 44,683 |  | ¥ 46,872 |  | ¥ 48,494 |
Accumulated impairment losses | (65) |  | (5,410) |  | (3,590) |  | (1,900) |  | (11) |  | (951) |  | (656) |  | (656) |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | (54) |  | (4,459) |  | (2,934) |  | (970) |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | (274) |
Beginning Balance | 855 |  | 71,074 |  | 77,244 |  | 82,196 |  | 5 |  | 381 |  | 503 |  | 2,390 |  | 3 |  | 282 |  | 282 |  | 282 |  | 223 |  | 18,536 |  | 19,230 |  | 17,845 |  | 33 |  | 2,740 |  | 5,905 |  | 9,007 |  | 54 |  | 4,452 |  | 4,452 |  | 4,452 |  | 537 |  | 44,683 |  | 46,872 |  | 48,220 |
Acquired | 352 |  | 29,247 |  | 1,786 |  | 5,357 |  | 0 |  | 0 |  | 173 |  | 39 |  | 0 |  | 0 |  | 0 |  | 0 |  | 2 |  | 148 |  | 1,473 |  | 5,298 |  | 0 |  | 0 |  | 140 |  | 20 |  | 0 |  | 0 |  | 0 |  | 0 |  | 350 |  | 29,099 |  | 0 |  | 0 |
Impairment | (2) |  | (173) |  | (2,688) |  | (1,979) |  | (2) |  | (173) |  | (295) |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | (2,393) |  | (1,979) |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Other (net) | (65) | [1] | (5,358) | [1] | (5,268) | [1] | (8,330) | [1] | 0 | [1] | 0 | [1] | 0 | [1] | (1,926) | [1] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1] | 4 | [1] | 363 | [1] | (2,167) | [1] | (3,913) | [1] | (16) | [1] | (1,334) | [1] | (912) | [1] | (1,143) | [1] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1] | (53) | [1] | (4,387) | [1] | (2,189) | [1] | (1,348) | [1]
Goodwill | 1,172 |  | 97,397 |  | 76,484 |  | 80,834 |  | 9 |  | 677 |  | 1,332 |  | 1,159 |  | 3 |  | 282 |  | 282 |  | 282 |  | 229 |  | 19,047 |  | 18,536 |  | 19,230 |  | 43 |  | 3,544 |  | 7,199 |  | 8,839 |  | 54 |  | 4,452 |  | 4,452 |  | 4,452 |  | 834 |  | 69,395 |  | 44,683 |  | 46,872 |
Accumulated impairment losses | (32) |  | (2,607) |  | (5,410) |  | (3,590) |  | (6) |  | (469) |  | (951) |  | (656) |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | (26) |  | (2,138) |  | (4,459) |  | (2,934) |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Ending Balance | $ 1,140 |  | ¥ 94,790 |  | ¥ 71,074 |  | ¥ 77,244 |  | $ 3 |  | ¥ 208 |  | ¥ 381 |  | ¥ 503 |  | $ 3 |  | ¥ 282 |  | ¥ 282 |  | ¥ 282 |  | $ 229 |  | ¥ 19,047 |  | ¥ 18,536 |  | ¥ 19,230 |  | $ 17 |  | ¥ 1,406 |  | ¥ 2,740 |  | ¥ 5,905 |  | $ 54 |  | ¥ 4,452 |  | ¥ 4,452 |  | ¥ 4,452 |  | $ 834 |  | ¥ 69,395 |  | ¥ 44,683 |  | ¥ 46,872 |
[1] | Other includes foreign currency translation adjustments and certain other reclassifications.

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- Definition Goodwill before accumulated impairments + Details
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- Definition Goodwill, Currency and Other + Details
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- Definition Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 + Details
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- Definition The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e(1) + Details
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- Definition Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e(2) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -Subparagraph b Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 20 + Details
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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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