v3.26.1
Cash and Cash Equivalents - Schedule of Cash and Cash Equivalents (Details) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Disclosure of operating segments [line items]        
Total ¥ 363,083 ¥ 369,811 ¥ 744,323 ¥ 859,313
Operating Segments | Payment        
Disclosure of operating segments [line items]        
Cash and demand deposits 53,439 141,289    
Restricted cash related to transfers of credit card receivables 697 734    
Total 54,136 142,023    
Operating Segments | Financial Service        
Disclosure of operating segments [line items]        
Cash and demand deposits 16,322 15,530    
Deposits with the Bank of Japan 292,622 212,258    
Other 3      
Total ¥ 308,947 ¥ 227,788