Business Segment Information (Reportable Segment Information Derived from Internal Management Reporting Systems, on Basis of Japanese GAAP) (Parenthetical) (Detail) - JPY (¥)
¥ in Billions

12 Months Ended

Mar. 31, 2026

Mar. 31, 2025

Mar. 31, 2024

[1]

Income and expenses of foreign branches of MHBK and foreign subsidiaries with functional currencies other than Japanese Yen have been translated for purposes of segment reporting using the budgeted foreign currency rates. Prior period comparative amounts for such foreign currency income and expenses have been translated using current period budgeted foreign currency rates.

[2]

“Gross profits + Net gains (losses) related to ETFs and others” is reported instead of sales reported by general corporations. Gross profits is defined as the sum of net interest income, fiduciary income, net fee and commission income, net trading income and net other operating income. Net gains (losses) related to ETFs and others consist of net gains (losses) on ETFs held by MHBK and MHTB on their non-consolidated basis and net gains (losses) on operating investment securities of MHSC on its consolidated basis. For the fiscal years ended March 31, 2024, 2025 and 2026, net gains (losses) related to ETFs and others amounted to ¥(31.0) billion, ¥45.2 billion and ¥38.3 billion, respectively, of which ¥(37.0) billion, ¥37.0 billion and ¥30.8 billion are included in GMC, respectively.