Short-term borrowings and long-term debt - Additional Information (Detail) ¥ in Millions	12 Months Ended
Mar. 31, 2024 JPY (¥)
Corporate Bonds Issued December Two Thousand And Twenty Four [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings notional amount	¥ 150,000
Commercial Paper [Member]
Disclosure of detailed information about borrowings [line items]
Repayments of current borrowings	¥ 80,000

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

No definition available.

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- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

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- Definition

The cash outflow for repayments of current borrowings. [Refer: Current borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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