Affiliated Companies and Other Equity Method Investees, Goodwill Included in Carrying Amount of Investment

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- Definition

Number of shares that the parent company sold of affiliate

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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- Definition

Number of new stock issued during the period.

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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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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.

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No definition available.

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Affiliated companies and other equity-method investees - Additional information (Detail) - JPY (¥) ¥ in Millions		12 Months Ended
	Aug. 21, 2019	Mar. 31, 2020	Jul. 28, 2017
NRI [Member]
Subsidiary or Equity Method Investee [Line Items]
Number of shares sold	101,889,300
Number of shares sold value	¥ 159,966
Gain loss on litigation settlement		¥ 73,293
JAFCO [Member]
Subsidiary or Equity Method Investee [Line Items]
Number of shares sold by parent company			8,488,200
NRI [Member]
Subsidiary or Equity Method Investee [Line Items]
Ownership percentage		28.80%
Equity method goodwill, remaining carrying value		¥ 61,310
NREH [Member]
Subsidiary or Equity Method Investee [Line Items]
Ownership percentage		35.90%
Equity method goodwill, remaining carrying value		¥ 11,012