v3.26.1
Condensed Financial Information of Registrant (SMFG) - Condensed Statement of Financial Position (Detail) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Assets:        
Deposits with SMBC ¥ 73,623,887 ¥ 75,754,246    
Loans 130,516,241 125,190,819    
Other assets 13,065,937 7,983,972    
Current tax assets 57,766 43,157    
Total assets 309,203,641 292,165,070    
Liabilities and equity:        
Debt securities in issue 16,576,423 14,387,415    
Other liabilities 16,767,384 10,821,441    
Total liabilities 290,914,647 275,676,476    
Other equity instruments holders' equity 2,252,846 1,868,377    
Total equity 18,288,994 16,488,594 ¥ 16,279,098 ¥ 13,536,965
Total equity and liabilities 309,203,641 292,165,070    
Sumitomo mitsui banking corporation [member]        
Liabilities and equity:        
Debt securities in issue 2,696,208 2,188,904    
Other subsidiaries [member]        
Liabilities and equity:        
Debt securities in issue 2,745,934 2,682,046    
SMFG [member]        
Liabilities and equity:        
Debt securities in issue 11,134,281 9,516,465    
SMFG [member] | Non Consolidated [member]        
Assets:        
Investments in other subsidiaries, associates and joint ventures 2,481,066 2,480,680    
Other assets 388,664 310,671    
Current tax assets 17,616 1,393    
Total assets 22,582,733 20,353,503    
Liabilities and equity:        
Long-term borrowings 402,838 380,100    
Debt securities in issue 11,490,697 9,889,186    
Other liabilities 149,833 102,273    
Total liabilities 13,749,991 12,071,967    
Shareholders' equity 6,585,588 6,418,083    
Other equity instruments holders' equity 2,247,154 1,863,453    
Total equity 8,832,742 8,281,536    
Total equity and liabilities 22,582,733 20,353,503    
SMFG [member] | Sumitomo mitsui banking corporation [member]        
Assets:        
Deposits with SMBC 551,330 530,273    
Investments in SMBC 4,613,984 4,613,984    
Loans 14,480,073 12,416,502    
Liabilities and equity:        
Short-term borrowings from SMBC 1,675,000 1,679,650    
SMFG [member] | Other subsidiaries [member] | Non Consolidated [member]        
Assets:        
Loans 50,000      
Liabilities and equity:        
Debt securities in issue ¥ 31,623 ¥ 20,758