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Investment in Affiliates (Summary of Investment in Affiliates) (Parenthetical) (Detail) - JPY (¥) ¥ in Millions | Sep. 30, 2023 | Mar. 31, 2023
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Investments in and Advances to Affiliates, Schedule of Investments [Abstract] |  |
Investment in Affiliates, measured at fair value | ¥ 5,003 | ¥ 2,511

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- Definition Fair value portion of investments in an entity not consolidated. Includes, but is not limited to, investments in an entity that is affiliated with the reporting entity by means of direct or indirect ownership, an entity in which the reporting entity shares control of the entity with another party or group, an entity which the company has significant influence, but does not have control and subsidiaries that are not required to be consolidated and are accounted for using the equity or cost method. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- References No definition available. + Details
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