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Risk Management (Details 33)
R$ in Thousands
 12 Months Ended
Dec. 31, 2017
BRL (R$)
Interest rate  
Sensibility test for Life Insurance with Survival  
Percentage adjustment to each assumption: Variation of -5%
Tradicional plans (contributing period)Tradicional plans (contributing period) R$ (60,733)
PGBL and VGBL (contributing period) (5,446)
All plans(retirement benefit period) (112,782)
Total R$ (178,961)
Longevity  
Sensibility test for Life Insurance with Survival  
Percentage adjustment to each assumption: +0.2 p.p.
Tradicional plans (contributing period)Tradicional plans (contributing period) R$ (5,057)
PGBL and VGBL (contributing period) (504)
All plans(retirement benefit period) (35,507)
Total R$ (41,068)
Conversion to income  
Sensibility test for Life Insurance with Survival  
Percentage adjustment to each assumption: + 5 p.p.
Tradicional plans (contributing period)Tradicional plans (contributing period) R$ (21,691)
PGBL and VGBL (contributing period) (18,409)
Total R$ (40,100)