Provisions - Summary of Financial Information of Provisions (Detail) - JPY (¥) ¥ in Millions	Mar. 31, 2026	Mar. 31, 2025
Provisions [abstract]
Current liabilities	¥ 431,191	¥ 413,352
Non-current liabilities	498,463	301,103
Total	¥ 929,654	¥ 714,455

The amount of current provisions, including provisions for employee benefits. [Refer: Provisions]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 54
-Subparagraph l
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-URIDate 2025-03-27

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- Definition

The amount of non-current provisions, including provisions for employee benefits. [Refer: Provisions]

+ References

+ Details

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- Definition

The amount of liabilities of uncertain timing or amount, including provisions for employee benefits.

+ References

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- References

No definition available.

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