v3.26.1
Borrowings - Long-term borrowings (Detail) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Borrowings [Abstract]    
Debt issued by the Company ¥ 3,872,736 ¥ 3,465,010
Debt issued by subsidiaries—guaranteed by the Company [1] 7,923,892 6,568,898
Debt issued by subsidiaries—not guaranteed by the Company [1] 3,748,328 3,339,770
Total ¥ 15,544,956 ¥ 13,373,678
[1] Includes trading balances of secured borrowings.