Earnings Per Share - Summary of Shareholders' Equity Per Share (Detail) - JPY (¥) ¥ / shares in Units, shares in Thousands, ¥ in Millions	Mar. 31, 2026	Mar. 31, 2025
Disclosure of shareholders equity per share [Abstract]
Toyota Motor Corporation shareholders' equity	¥ 39,918,854	¥ 35,924,826
Common shares issued and outstanding at the end of the year (excluding treasury stock)	13,033,384	13,048,930
Toyota Motor Corporation shareholders' equity per share	¥ 3,062.82	¥ 2,753.09

The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
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-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
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-Subparagraph a
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-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
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-IssueDate 2025-01-01
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