v3.26.1
Borrowings - Maturities of long-term borrowings (Detail) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Borrowings [Abstract]    
2027 ¥ 1,431,899  
2028 1,759,717  
2029 1,862,534  
2030 1,754,773  
2031 1,973,293  
2032 and thereafter 6,217,371  
Subtotal 14,999,587 ¥ 12,911,549
Trading balances of secured borrowings 545,369 462,129
Total ¥ 15,544,956 ¥ 13,373,678