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PROVISIONS, CONTINGENT LIABILITIES AND CONTINGENT ASSETS (Details 2) - BRL (R$)
R$ in Millions
Dec. 31, 2025
Dec. 31, 2024
IfrsStatementLineItems [Line Items]    
Estimates of amounts of possible losses R$ 105,934.1 R$ 97,898.8
Income Tax And Social Contribution [Member]    
IfrsStatementLineItems [Line Items]    
Estimates of amounts of possible losses 72,201.3 65,174.6
Value Added And Excise Taxes [Member]    
IfrsStatementLineItems [Line Items]    
Estimates of amounts of possible losses 28,810.1 28,139.7
P I S And C O F I N S Tax Contingent Liability [Member]    
IfrsStatementLineItems [Line Items]    
Estimates of amounts of possible losses 1,876.5 2,032.5
Other contingent liabilities [member]    
IfrsStatementLineItems [Line Items]    
Estimates of amounts of possible losses R$ 3,046.2 R$ 2,552.0