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Risks Arising from Financial Instruments - Summary of Floating Rate Debt after Hedging (Detail)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Brazilian Real [member]    
Disclosure of detailed information about hedging instruments [line items]    
Interest rate 8.88% 2.09%
Volatility rates in % 11.58% 16.77%
Euro [member]    
Disclosure of detailed information about hedging instruments [line items]    
Volatility rates in % 10.64% 16.83%
US Dollar [member]    
Disclosure of detailed information about hedging instruments [line items]    
Interest rate 0.21% 0.24%
Volatility rates in % 48.10% 58.30%
Bottom of range [member] | Brazilian Real [member]    
Disclosure of detailed information about hedging instruments [line items]    
Possible interest rate 2 7.85% 1.74%
Bottom of range [member] | US Dollar [member]    
Disclosure of detailed information about hedging instruments [line items]    
Possible interest rate 2 0.11% 0.10%
Top of range [member]    
Disclosure of detailed information about hedging instruments [line items]    
Interest rate 4.00%  
Top of range [member] | Brazilian Real [member]    
Disclosure of detailed information about hedging instruments [line items]    
Possible interest rate 2 9.91% 2.44%
Top of range [member] | US Dollar [member]    
Disclosure of detailed information about hedging instruments [line items]    
Possible interest rate 2 0.31% 0.38%