XML 73 R165.htm IDEA: XBRL DOCUMENT v3.20.1
23 Post-employment benefits (Details 6) - BRL (R$)
R$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of defined benefit plans [line items]        
Total liabilities or partially covered R$ 11,074,608 R$ 9,201,030    
Fair value of the plan assets (10,880,721) (8,642,068)    
Plan coverage status 193,887 558,962    
Unrecognized asset 999,512 408,652    
Total 1,193,399 967,614    
Unified Plan [Member]        
Disclosure of defined benefit plans [line items]        
Total liabilities or partially covered 6,638,462 5,914,764 R$ 5,352,894 R$ 4,951,078
Fair value of the plan assets (7,546,756) (6,290,841) (5,834,572)  
Plan coverage status (908,294)      
Unrecognized asset 908,294      
Total      
Plan III [Member]        
Disclosure of defined benefit plans [line items]        
Total liabilities or partially covered 3,046,536 2,145,661 1,734,568 1,565,121
Fair value of the plan assets (3,137,754) (2,178,236) (1,821,055)  
Plan coverage status (91,218)      
Unrecognized asset 91,218      
Total      
Assistance Plan [Member]        
Disclosure of defined benefit plans [line items]        
Total liabilities or partially covered 1,389,610 1,140,605 1,035,957 R$ 933,914
Fair value of the plan assets (196,211) R$ (172,991) R$ (170,923)  
Plan coverage status 1,193,399      
Unrecognized asset      
Total R$ 1,193,399