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DERIVATIVE FINANCIAL INSTRUMENTS AND FINANCIAL INSTRUMENTS RELATED TO CREDIT (Details 5) (BRL)
In Millions
Dec. 31, 2010
Dec. 31, 2009
Loss Contingencies [Line Items]    
Long-term Line of Credit 5,967 5,907
Guarantees 37,618 31,234
Guarantees, Fair Value Disclosure 108 68
Standby Letters of Credit [Member]
   
Loss Contingencies [Line Items]    
Long-term Line of Credit 756 1,207
Standby letters of credit 435 349