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PROVISIONS (Details 1) - BRL (R$)
R$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Labour Provision [member]    
IfrsStatementLineItems [Line Items]    
Possible losses R$ 1,199 R$ 1,167
Customer Relations [member]    
IfrsStatementLineItems [Line Items]    
Possible losses 231 149
Other Civil Actions [member]    
IfrsStatementLineItems [Line Items]    
Possible losses 537 422
Civil Cases [member]    
IfrsStatementLineItems [Line Items]    
Possible losses 768 571
Provision for taxes other than income tax [member]    
IfrsStatementLineItems [Line Items]    
Possible losses 2,149 2,114
Regulatory [member]    
IfrsStatementLineItems [Line Items]    
Possible losses 2,976 2,457
Other [member]    
IfrsStatementLineItems [Line Items]    
Possible losses 1,361 1,213
Possiblelosses [Member]    
IfrsStatementLineItems [Line Items]    
Possible losses R$ 8,453 R$ 7,522