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Commitments - Additional Information (Detail)
T in Millions, MT in Millions
 1 Months Ended 12 Months Ended
Oct. 01, 2019
Apr. 30, 2016
MWh
Feb. 28, 2010
Dec. 31, 2023
USD ($)
Employees
T
MWh
MT
$ / MWh
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Disclosure of Commitments and Contingencies [Line Items]            
Acquired energy usage period   20 years        
Self-insured health care benefits       $ 72,000,000 $ 64,000,000 $ 59,000,000
Cost per megawatt hour | $ / MWh       25.375    
Emissions of Co2 gross | MT       57    
Percentage of Co2 released directly related to production process       63.00%    
Percentage of Co2 released directly related to electric consumption       5.00%    
Percentage of Co2 released through activity of supply and transportation       32.00%    
Loss from catastrophes       $ 3,000,000 $ 1,000,000 $ 5,000,000
Executive Variable Compensation [Member]            
Disclosure of Commitments and Contingencies [Line Items]            
Precease of decrease in annual executive variable compensation       (10.00%)    
Precease of increase in annual executive variable compensation       10.00%    
Number of employees | Employees       4,500    
Two Thousand and Twenty Year Baseline [Member]            
Disclosure of Commitments and Contingencies [Line Items]            
Percentage reduction of Co2 emissions       25.00%    
Percentage decrease in transportation emissions       30.00%    
Percentage decrease of scope 3 emissions per ton of purchased fuels       40.00%    
Percentage decrease of absolute scope 3 emissions from the use of traded fuels       42.00%    
Scope One [Member]            
Disclosure of Commitments and Contingencies [Line Items]            
Percentage reduction of Co2 emissions       47.00%    
Scope Two [Member]            
Disclosure of Commitments and Contingencies [Line Items]            
Percentage reduction of Co2 emissions       58.00%    
Scope Three [Member]            
Disclosure of Commitments and Contingencies [Line Items]            
Percentage reduction of Co2 emissions       0.00%    
Commitement With Six Vendors For Back Office Services [Member] | Later than five years and not later than seven years [member]            
Disclosure of Commitments and Contingencies [Line Items]            
Annual Commitement With Vendors Value       $ 60,000,000    
MX [Member] | Energy Financial Hedge [Member]            
Disclosure of Commitments and Contingencies [Line Items]            
Period of hedging agreement 20 years          
Electric energy expected consumption | MWh       400,000    
Percentage increase in the price of the commodity       1.50%    
Proceeds payments from financial hedge       $ 3,000,000    
Bottom of range [member]            
Disclosure of Commitments and Contingencies [Line Items]            
Percentage of Co2 released       5.00%    
Top of range [member]            
Disclosure of Commitments and Contingencies [Line Items]            
Stop-loss limits value under medical assistance       $ 550,000    
Percentage of Co2 released       8.00%    
Top of range [member] | Employees [Member]            
Disclosure of Commitments and Contingencies [Line Items]            
Stop-loss limits value under medical assistance       $ 2,500,000    
Ventikas [member]            
Disclosure of Commitments and Contingencies [Line Items]            
Estimated annual cost       26,000,000    
Combined generation capacity | MWh   252        
EURUS [member]            
Disclosure of Commitments and Contingencies [Line Items]            
Acquired energy usage period     20 years      
Estimated annual cost       78,000,000    
Installed capacity     250      
Termoelectrica del Golfo [member]            
Disclosure of Commitments and Contingencies [Line Items]            
Estimated annual cost       $ 183,000,000    
Combined volume allocate to TEG and other energy producer | T       1.2