Derivative instruments and hedging activities - Concentration of exposures to credit risk in OTC derivatives with financial institutions (Detail) - JPY (¥)
¥ in Billions

Mar. 31, 2026

Mar. 31, 2025

Gross fair value of derivative assets

^[1]

¥ 25,006

¥ 19,678

Financial institutions [Member]

Derivative [Line Items]

Gross fair value of derivative assets

19,414

14,974

Impact of master netting agreements

(16,606)

(12,745)

Impact of collateral

(2,104)

(1,759)

Net exposure to credit risk

¥ 704

¥ 470

[1]	The amounts reported include derivatives used for non-trading purposes other than those designated as formal fair value or net investment accounting hedges. These amounts have not been separately presented since such amounts were not significant as of March 31, 2025 and March 31, 2026.

- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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