v3.26.1
Debt - Summary of Long-term Debt (Detail)
€ in Thousands, ¥ in Thousands, $ in Thousands, $ in Thousands
Dec. 31, 2025
USD ($)
Dec. 31, 2025
MXN ($)
Dec. 31, 2025
EUR (€)
Dec. 31, 2025
JPY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2024
MXN ($)
Dec. 31, 2024
EUR (€)
Dec. 31, 2024
JPY (¥)
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion $ 66,014,912 $ 1,186,070,119       $ 1,553,553,738    
Principal amount of debt   1,501,486,616       1,940,045,760    
Accrued interest   29,811,474       38,726,495    
Total   1,531,298,090       1,978,772,255    
Short-term maturities   315,416,497       386,492,022    
Short-term debt and current portion of long-term debt   345,227,971       425,218,517    
U.S                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion 70,209,303 1,261,429,484     $ 74,519,366 1,510,380,872    
Peso                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion   135,830,336       230,261,924    
Bonds | U.S                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion $ 50,949,129 $ 915,387,717     $ 60,095,301 $ 1,218,029,594    
Bonds | U.S | Bottom of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 5.35% 5.35% 5.35% 5.35% 2.38% 2.38% 2.38% 2.38%
Bonds | U.S | Bottom of range | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate 3.50% 3.50% 3.50% 3.50% 0.612% 0.612% 0.612% 0.612%
Bonds | U.S | Top of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 10.00% 10.00% 10.00% 10.00% 10.00% 10.00% 10.00% 10.00%
Bonds | U.S | Top of range | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate 3.75% 3.75% 3.75% 3.75% 3.75% 3.75% 3.75% 3.75%
Bonds | Euro                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion   $ 51,922,592 € 2,461,090     $ 136,091,806 € 6,484,638  
Bonds | Euro | Bottom of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 2.75% 2.75% 2.75% 2.75% 2.75% 2.75% 2.75% 2.75%
Bonds | Euro | Top of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 4.88% 4.88% 4.88% 4.88% 5.50% 5.50% 5.50% 5.50%
Bonds | Yen                
Disclosure of detailed information about borrowings [line items]                
Interest rate 0.54% 0.54% 0.54% 0.54%        
Long-term debt, net of current portion   $ 9,165,982   ¥ 79,982,394   $ 10,306,353   ¥ 79,956,191
Bonds | Yen | Bottom of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate         0.54% 0.54% 0.54% 0.54%
Bonds | Other currencies                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion           $ 11,412,443    
Bonds | Other currencies | Top of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate         3.75% 3.75% 3.75% 3.75%
Project financing | U.S                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion $ 234,956 $ 4,221,385     $ 413,496 $ 8,380,867    
Project financing | U.S | Bottom of range | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate 1.23% 1.23% 1.23% 1.23% 0.87% 0.87% 0.87% 0.87%
Project financing | U.S | Top of range | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate 1.81% 1.81% 1.81% 1.81% 1.81% 1.81% 1.81% 1.81%
Direct loans | U.S                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion $ 15,017,401 $ 269,813,134     $ 5,000,493 $ 101,351,485    
Direct loans | U.S | Bottom of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 4.59% 4.59% 4.59% 4.59% 10.38% 10.38% 10.38% 10.38%
Direct loans | U.S | Bottom of range | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate 2.15% 2.15% 2.15% 2.15% 2.15% 2.15% 2.15% 2.15%
Direct loans | U.S | Top of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 10.38% 10.38% 10.38% 10.38%        
Direct loans | U.S | Top of range | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate 4.54% 4.54% 4.54% 4.54% 4.54% 4.54% 4.54% 4.54%
Direct loans | Peso                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion   $ 84,526,117       $ 143,086,612    
Direct loans | Peso | Bottom of range | TIIE                
Disclosure of detailed information about borrowings [line items]                
Interest rate 1.90% 1.90% 1.90% 1.90% 0.85% 0.85% 0.85% 0.85%
Direct loans | Peso | Top of range | TIIE                
Disclosure of detailed information about borrowings [line items]                
Interest rate 4.50% 4.50% 4.50% 4.50% 4.50% 4.50% 4.50% 4.50%
Syndicated loans | U.S                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion $ 1,500,000 $ 26,950,050     $ 1,500,000 $ 30,402,450    
Syndicated loans | U.S | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate 4.85% 4.85% 4.85% 4.85%        
Syndicated loans | U.S | Top of range | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate         4.85% 4.85% 4.85% 4.85%
Syndicated loans | Peso                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion           $ 1,350,000    
Syndicated loans | Peso | TIIE                
Disclosure of detailed information about borrowings [line items]                
Interest rate         0.95% 0.95% 0.95% 0.95%
Revolving credit lines | U.S                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion $ 1,589,924 $ 28,565,695     $ 6,481,543 $ 131,369,868    
Revolving credit lines | U.S | Bottom of range | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate         3.00% 3.00% 3.00% 3.00%
Revolving credit lines | U.S | Top of range | Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate         4.85% 4.85% 4.85% 4.85%
Revolving credit lines | Peso                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion           $ 20,500,000    
Revolving credit lines | Peso | Bottom of range | TIIE                
Disclosure of detailed information about borrowings [line items]                
Interest rate         4.25% 4.25% 4.25% 4.25%
Financing of Infrastructure asset | U.S                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion $ 917,893 $ 16,491,503     $ 1,028,533 $ 20,846,608    
Financing of Infrastructure asset | U.S | Bottom of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 8.38% 8.38% 8.38% 8.38% 8.38% 8.38% 8.38% 8.38%
Financing of Infrastructure asset | U.S | Top of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 8.89% 8.89% 8.89% 8.89% 8.89% 8.89% 8.89% 8.89%
Certificados bursátiles | Peso                
Disclosure of detailed information about borrowings [line items]                
Interest rate 7.47% 7.47% 7.47% 7.47%        
Long-term debt, net of current portion   $ 31,361,411       $ 31,318,419    
Certificados bursátiles | Peso | Bottom of range | TIIE                
Disclosure of detailed information about borrowings [line items]                
Interest rate         7.47% 7.47% 7.47% 7.47%
Certificados bursátiles | Peso | Top of range | TIIE                
Disclosure of detailed information about borrowings [line items]                
Interest rate        
Certificados bursátiles | UDIs                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion   $ 43,138,222       $ 41,592,362    
Certificados bursátiles | UDIs | Bottom of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 3.02% 3.02% 3.02% 3.02% 3.02% 3.02% 3.02% 3.02%
Certificados bursátiles | UDIs | Top of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate 5.23% 5.23% 5.23% 5.23% 5.23% 5.23% 5.23% 5.23%
Others | Peso                
Disclosure of detailed information about borrowings [line items]                
Long-term debt, net of current portion   $ 19,942,808       $ 34,006,893    
Others | Peso | TIIE                
Disclosure of detailed information about borrowings [line items]                
Interest rate 2.65% 2.65% 2.65% 2.65%        
Others | Peso | Bottom of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate         2.65% 2.65% 2.65% 2.65%
Others | Peso | Top of range                
Disclosure of detailed information about borrowings [line items]                
Interest rate        
Secured Overnight Financing Rate (SOFR)                
Disclosure of detailed information about borrowings [line items]                
Interest rate 3.87% 3.87% 3.87% 3.87% 4.49% 4.49% 4.49% 4.49%
One Month Secured Overnight Financing Rate                
Disclosure of detailed information about borrowings [line items]                
Interest rate 3.688% 3.688% 3.688% 3.688% 4.332% 4.332% 4.332% 4.332%
Three Month Secured Overnight Financing Rate                
Disclosure of detailed information about borrowings [line items]                
Interest rate 3.6517% 3.6517% 3.6517% 3.6517% 4.3051% 4.3051% 4.3051% 4.3051%
Six Month Secured Overnight Financing Rate                
Disclosure of detailed information about borrowings [line items]                
Interest rate 3.574% 3.574% 3.574% 3.574% 4.25% 4.25% 4.25% 4.25%
TIIE | Twenty Eight Days TIEE Rate                
Disclosure of detailed information about borrowings [line items]                
Interest rate 7.3489% 7.3489% 7.3489% 7.3489% 10.244% 10.244% 10.244% 10.244%
TIIE | Ninety One Days TIEE Rate                
Disclosure of detailed information about borrowings [line items]                
Interest rate 7.393% 7.393% 7.393% 7.393% 10.633% 10.633% 10.633% 10.633%
TIIE | One Hundred Eighty Two Days TIIE Rate                
Disclosure of detailed information about borrowings [line items]                
Interest rate 7.458% 7.458% 7.458% 7.458% 10.769% 10.769% 10.769% 10.769%