v3.26.1
Other Financial Assets - Narrative (Details) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Disclosure of financial assets [line items]    
Investments in equity instruments (Note 26) ¥ 173,034 ¥ 151,687
With quoted prices in active markets    
Disclosure of financial assets [line items]    
Investments in equity instruments (Note 26) ¥ 106,729 ¥ 78,073