XML 53 R169.htm IDEA: XBRL DOCUMENT v3.20.1
26. POST-EMPLOYMENT OBLIGATIONS (Details 6)
R$ in Millions
 12 Months Ended
Dec. 31, 2020
BRL (R$)
Disclosure of defined benefit plans [line items]  
Estimated payment of benefits R$ 1,059
Pension And Retirement Supplement Plans [Member]  
Disclosure of defined benefit plans [line items]  
Estimated payment of benefits 898
Health Plan [Member]  
Disclosure of defined benefit plans [line items]  
Estimated payment of benefits 141
Dental Plan [Member]  
Disclosure of defined benefit plans [line items]  
Estimated payment of benefits 3
Life Insurance Plan [Member]  
Disclosure of defined benefit plans [line items]  
Estimated payment of benefits R$ 17