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Risk and Capital Management (Details Narrative) - BRL (R$)
R$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]    
Financial assets at fair value of derivatives R$ 92,439 R$ 55,251
Total credit and finance lease operations 417,751 369,866
Total assets repossessed R$ 794 494
VaR calculation confidence level percentage 99.00%  
VaR calculation period historical period of 4 years (1.000 business days)  
Value at risk R$ 1,743 R$ 1,094
Percentage of VaR of total stockholders' equity 0.40% 0.50%
Percentage of aggregate funds from customers available on demand 69.50%  
Funds from clients R$ 1,089,345  
Totaled average sovereign securities 362,609  
Net cash outflows totaled average 163,863  
Available stable funds 1,375,854  
Required stable funding R$ 1,127,870  
Capital Adequcy ratio 16.50% 17.00%
Surplus Capital in relation to the Minimum Referential Equity Required R$ 117,278 R$ 109,660
Additional Tier I Capital, Required 49,049 42,526
Increase Decrease in Referential Equity 71,704 58,879
Referring to amounts 295,823 R$ 261,530
Credit risk [member]    
IfrsStatementLineItems [Line Items]    
Percentage of reinsurance premiums operations   (0.50%)
Subordinated Debttier I Capital [Member]    
IfrsStatementLineItems [Line Items]    
subordinated debt ,Tier I capital 16,957 R$ 18,028
Subordinated Debttier Ii Capital [Member]    
IfrsStatementLineItems [Line Items]    
subordinated debt ,Tier II capital R$ 20,497 R$ 21,208
L C R [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of financial assets 221.30% 191.80%
N S F R [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of financial assets 122.00% 126.90%
Average [Member]    
IfrsStatementLineItems [Line Items]    
Value at risk R$ 939 R$ 931
Top of range [member]    
IfrsStatementLineItems [Line Items]    
Value at risk R$ 1,902 1,247
Capital Adequcy ratio 16.50%  
Percentage of adjusted capital ratio 50.00%  
Bottom of range [member]    
IfrsStatementLineItems [Line Items]    
Value at risk R$ 756 R$ 718
Percentage of fixed assets ratio 18.50% 21.50%
Financial guarantee contracts [member]    
IfrsStatementLineItems [Line Items]    
Expected credit loss R$ (988) R$ (887)
Loan commitments [member]    
IfrsStatementLineItems [Line Items]    
Expected credit loss R$ (3,940) R$ (3,311)
Optimistic Scenario [Member]    
IfrsStatementLineItems [Line Items]    
Expected credit loss percentage 100.00%  
Optimistic Scenario [Member] | Country Of Brazil [Member]    
IfrsStatementLineItems [Line Items]    
Expected credit loss percentage 15.00%  
Base Scenario [Member] | Country Of Brazil [Member]    
IfrsStatementLineItems [Line Items]    
Expected credit loss percentage 55.00%  
Pessimistic Scenario [Member]    
IfrsStatementLineItems [Line Items]    
Expected credit loss percentage 100.00%  
Pessimistic Scenario [Member] | Country Of Brazil [Member]    
IfrsStatementLineItems [Line Items]    
Expected credit loss percentage 30.00%  
Base Case Scenario [Member]    
IfrsStatementLineItems [Line Items]    
Expected credit loss percentage 100.00%