Equity Method Investment, Gain (Loss) From Change In Quoted Market Value

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- Definition

Stock Repurchase Program, Number Of Shares Authorized To Be Repurchased As A Percent Of Total Shares Outstanding

+ References

No definition available.

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- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

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- Definition

Number of shares authorized to be purchased under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

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- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

This item represents the aggregate value of each identified investment accounted for under the equity method of accounting based on the quoted market price for those investments in common stock for which a quoted market price is available.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of other miscellaneous assets.

+ References

No definition available.

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- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 45
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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Subsequent Events (Narrative) (Detail) - JPY (¥) ¥ / shares in Units, ¥ in Millions				12 Months Ended
	Jun. 26, 2026	May 15, 2026	Apr. 08, 2026	Mar. 31, 2027	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024	Dec. 19, 2025
Subsequent Event [Line Items]
Cash dividend per common share (in YEN per share)					¥ 74.00	¥ 45.50	¥ 36.50
Unrealized gain on the contract to purchase equity shares of Shriram Finance Limited (Note 33)					¥ 25,111	¥ 0	¥ 0
Other					9,279,436	6,344,058
Marketable equity securities included in investment in equity method investees, aggregated market values					¥ 11,034,755	¥ 7,461,707
Shriram Finance Limited
Subsequent Event [Line Items]
Ownership percentage					20.00%
Unrealized gain on the contract to purchase equity shares of Shriram Finance Limited (Note 33)					¥ 25,111
Other					¥ 25,111
Shriram Ownership Trust and Shriram Capital Private Limited \| Shriram Finance Limited
Subsequent Event [Line Items]
Ownership percentage								20.00%
Subsequent event
Subsequent Event [Line Items]
Cash dividend per common share (in YEN per share)	¥ 51.0
Dividends, common stock	¥ 576,849
Aggregated number of shares allowed for repurchase (in shares)		45,000,000
Aggregate amount of shares allowed for repurchase		¥ 100,000
Subsequent event \| Shriram Finance Limited
Subsequent Event [Line Items]
Purchase consideration			¥ 713,260
Marketable equity securities included in investment in equity method investees, aggregated market values			¥ 860,958
Subsequent event \| Shriram Finance Limited \| Forecast
Subsequent Event [Line Items]
Unrealized gain on the contract to purchase equity shares of Shriram Finance Limited (Note 33)				¥ 122,587
Subsequent event \| Common stock
Subsequent Event [Line Items]
Shares authorized to be repurchased as % of total shares outstanding		0.40%