v3.26.1
Pension and Other Employee Benefit Plans (Forecasted Benefit Payments Including Effect of Expected Future Service) (Detail)
¥ in Millions
Mar. 31, 2026
JPY (¥)
Defined Benefit Plan Disclosure [Line Items]  
2027 ¥ 77,600
2028 79,313
2029 79,739
2030 80,254
2031 75,406
2032-2036 ¥ 326,146