v3.22.2.2
Financial instruments (Details) - Schedule of consolidated position of outstanding derivative transactions - Derivatives [member] - BRL (R$)
R$ in Millions
 9 Months Ended
Sep. 30, 2022
Dec. 31, 2021
USD – BRL [Member]    
Financial instruments (Details) - Schedule of consolidated position of outstanding derivative transactions [Line Items]    
Notional value R$ 50  
Due date 2023  
Outstanding derivative financial instruments R$ (17) R$ (11)
IPCA – BRL [Member]    
Financial instruments (Details) - Schedule of consolidated position of outstanding derivative transactions [Line Items]    
Notional value R$ 1,972  
Due date 2028, 2029 and 2031  
Outstanding derivative financial instruments R$ 120 3
Fixed rate x CDI [Member]    
Financial instruments (Details) - Schedule of consolidated position of outstanding derivative transactions [Line Items]    
Notional value R$ 54  
Due date 2027  
Outstanding derivative financial instruments R$ 1 2
Fixed rate x CDI One [Member]    
Financial instruments (Details) - Schedule of consolidated position of outstanding derivative transactions [Line Items]    
Notional value R$ 52  
Due date 2027  
Outstanding derivative financial instruments R$ 1 2
Derivatives - Fair value hedge [Member]    
Financial instruments (Details) - Schedule of consolidated position of outstanding derivative transactions [Line Items]    
Outstanding derivative financial instruments R$ 105 R$ (4)