XML 253 R169.htm IDEA: XBRL DOCUMENT v3.22.1
Schedule of sensitivity analysis (Details)
R$ in Thousands
Dec. 31, 2021
BRL (R$)
Increase By One Percent [Member]  
Sensitivity of long-term interest rate  
Impacts on the obligations of the pension R$ (931,718)
Impacts on the obligations of healthcare program (265,494)
Sensitivity of growth rate of the medical costs  
Impacts on the obligations of healthcare program  100,689
Impact on cost of service for the following financial year of healthcare program  410
Sensitivity of the service cost  
Impacts on the obligations of the pension  413
Impacts on the obligations of healthcare program  1,081
Decrease In One Percent [Member]  
Sensitivity of long-term interest rate  
Impacts on the obligations of the pension 899,959
Impacts on the obligations of healthcare program 249,212
Sensitivity of growth rate of the medical costs  
Impacts on the obligations of healthcare program  (97,728)
Impact on cost of service for the following financial year of healthcare program  (398)
Sensitivity of the service cost  
Impacts on the obligations of the pension  (400)
Impacts on the obligations of healthcare program  R$ (1,014)