Business Developments - MUFG Union Bank (Details) - Disposal group, disposed of by sale, not discontinued operations - JPY (¥)
¥ in Millions
Mar. 31, 2022
Mar. 31, 2021
Assets held for sale:    
Assets held for sale ¥ 11,621,567 ¥ 0
Liabilities held for sale:    
Other 11,157,660 ¥ 0
MUFG Union Bank    
Assets held for sale:    
Interest-earning deposits in other banks 1,110,633  
Investment securities 3,188,257  
Loans, net of allowance for credit losses 6,561,316  
Other 761,361  
Assets held for sale 11,621,567  
Liabilities held for sale:    
Deposits 10,448,481  
Other 709,179  
Liabilities held for sale ¥ 11,157,660