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HELD TO MATURITY SECURITIES (Details 1) (BRL)
In Millions
Dec. 31, 2010
Dec. 31, 2009
TOTAL 2,506 1,762
Amortized Cost [Member]
   
Due within one year 283  
From 1 to 5 years 343  
From 5 to 10 years 61  
After 10 years 1,819  
TOTAL 2,506  
Fair Value [Member]
   
Due within one year 288  
From 1 to 5 years 383  
From 5 to 10 years 308  
After 10 years 2,131  
TOTAL 3,110