v3.26.1
Loans - Details of Negotiable Obligations (Detail)
$ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2025
ARS ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Disclosure of detailed information about loans [line items]        
Non-current $ 7,466   $ 6,255 $ 6,191
Current $ 1,486   1,317 827
Negotiable obligations [member] | Class XXX [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal Maturity 2026      
Negotiable obligations [member] | 1998 [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 15      
Interest rate [2] 10.00% 10.00%    
Principal Maturity 2028      
Non-current $ 15   15 15
Negotiable obligations [member] | 2014 April, 2015 February and 2016 October [member] | Class XXVIII [Member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] 521      
Current       354
Negotiable obligations [member] | 2014 September [member] | Class XXXIV [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1]   $ 1,000    
Negotiable obligations [member] | 2015 April [member] | Class XXXIX [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] 757      
Non-current       1,132
Current     785 41
Negotiable obligations [member] | 2015 October [member] | Class XXVII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] 128      
Negotiable obligations [member] | 2017 July and December [member] | Class LIII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 644      
Interest rate [2] 6.95% 6.95%    
Principal Maturity 2027      
Non-current $ 648   649 816
Current 19   19 25
Negotiable obligations [member] | 2017 December [member] | Class LIV [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 537      
Interest rate [2] 7.00% 7.00%    
Principal Maturity 2047      
Non-current $ 530   530 530
Current 2   1 1
Negotiable obligations [member] | 2019 June [member] | Class I [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 399      
Interest rate [2] 8.50% 8.50%    
Principal Maturity 2029      
Non-current $ 397   398 397
Negotiable obligations [member] | 2020 July [member] | Class XIII [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] 341      
Non-current       43
Current     44 88
Negotiable obligations [member] | 2021 February [member] | Class XVI [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] 776      
Non-current     58 307
Current     243 235
Negotiable obligations [member] | 2021 February [member] | Class XVII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 748      
Interest rate [2] 9.00% 9.00%    
Principal Maturity 2029      
Non-current $ 537   756 758
Current 216      
Negotiable obligations [member] | 2021 February [member] | Class XVIII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 576      
Interest rate [2] 7.00% 7.00%    
Principal Maturity 2033      
Non-current $ 558   555 553
Current 11   11 11
Negotiable obligations [member] | 2021 February [member] | Class XIX [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1]   $ 4,128    
Negotiable obligations [member] | 2021 February [member] | Class XIX [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Current       35
Negotiable obligations [member] | 2021 July [member] | Class XX [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 384      
Interest rate [2] 5.75% 5.75%    
Principal Maturity 2032      
Non-current $ 329   384 384
Current 65   10 10
Negotiable obligations [member] | 2023 January [member] | Class XXI [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 230      
Interest rate [2] 1.00% 1.00%    
Principal Maturity 2026      
Non-current     220 229
Current $ 154     1
Negotiable obligations [member] | 2023 January and 2023 April [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1]   $ 15,761    
Negotiable obligations [member] | 2023 January and 2023 April [member] | Class XXII [member]        
Disclosure of detailed information about loans [line items]        
Current       25
Negotiable obligations [member] | 2023 April [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Interest rate [2] 1.00% 1.00%    
Negotiable obligations [member] | 2023 April [member] | Class XXIII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 147      
Non-current       158
Current     150  
Negotiable obligations [member] | 2023 April [member] | Class XXIV [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 38      
Principal Maturity 2027      
Non-current $ 38   37 38
Negotiable obligations [member] | 2023 June [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Interest rate [2] 5.00% 5.00%    
Negotiable obligations [member] | 2023 June [member] | Class XXV [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 213      
Principal Maturity 2026      
Non-current $ 0   263 262
Current $ 188   1 1
Negotiable obligations [member] | 2023 September [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Interest rate [2] 0.00% 0.00%    
Negotiable obligations [member] | 2023 September [member] | Class XXVI [Member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 400      
Principal Maturity 2028      
Non-current $ 400   400 400
Negotiable obligations [member] | 2023 September [member] | Class XXVII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Non-current       $ 169
Negotiable obligations [member] | 2023 October [member] | Class XXVII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Interest rate [2] 0.00% 0.00%    
Principal Maturity 2026      
Non-current     147  
Current $ 133      
Negotiable obligations [member] | 2024 January [member] | Class XXVIII [Member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 800      
Interest rate [2] 9.50% 9.50%    
Principal Maturity 2031      
Non-current $ 714   790  
Current 114   35  
Negotiable obligations [member] | 2024 May [member] | Class XXIX [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 131      
Interest rate [2] 6.00% 6.00%    
Principal Maturity 2026      
Non-current     177  
Current $ 132   1  
Negotiable obligations [member] | 2024 September [member] | Class XXXI [Member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 540      
Interest rate [2] 8.75% 8.75%    
Principal Maturity 2031      
Non-current $ 1,046   539  
Current 21   15  
Negotiable obligations [member] | 2024 October [member] | Class XXXII [Member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 125      
Interest rate [2] 6.50% 6.50%    
Principal Maturity 2028      
Non-current $ 125   125  
Current 2   2  
Negotiable obligations [member] | 2024 October [member] | Class XXXIII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 25      
Interest rate [2] 7.00% 7.00%    
Principal Maturity 2028      
Non-current $ 25   25  
Negotiable obligations [member] | 2025 January [member] | Class XXXIV [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 1,100      
Interest rate [2] 8.25% 8.25%    
Principal Maturity 2034      
Non-current $ 1,080      
Current 42      
Negotiable obligations [member] | 2025 February [Member] | Class XXXV [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 140      
Interest rate [2] 6.25% 6.25%    
Principal Maturity 2027      
Non-current $ 140      
Current 1      
Negotiable obligations [member] | 2025 February [Member] | Class XXXVI [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] 56      
Negotiable obligations [member] | 2025 May [Member] | Class XXXVII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 140      
Interest rate [2] 7.00% 7.00%    
Principal Maturity 2027      
Non-current $ 139      
Current 2      
Negotiable obligations [member] | 2025 July [Member] | Class XXXVIII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 250      
Interest rate [2] 7.50% 7.50%    
Principal Maturity 2027      
Non-current $ 248      
Current 4      
Negotiable obligations [member] | 2025 July and August [Member] | Class XXXIX [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 225      
Interest rate [2] 8.75% 8.75%    
Principal Maturity 2030      
Non-current $ 155      
Current 8      
Negotiable obligations [member] | 2025 August [Member] | Class XL [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 51      
Interest rate [2] 7.50% 7.50%    
Principal Maturity 2028      
Non-current $ 50      
Negotiable obligations [member] | 2025 October [Member] | Class XLI [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 98      
Interest rate [2] 6.00% 6.00%    
Principal Maturity 2027      
Non-current $ 98      
Current 1      
Negotiable obligations [member] | 2025 December [Member] | Class XLII [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 195      
Interest rate [2] 7.00% 7.00%    
Principal Maturity 2027      
Non-current $ 194      
Current 1      
Negotiable obligations [member] | 2024 July and 2025 April [Member] | Class XXX [member] | Fixed interest rate [member]        
Disclosure of detailed information about loans [line items]        
Principal value [1] $ 389      
Interest rate [2] 1.00% 1.00%    
Non-current     $ 187  
Current $ 370      
[1] Total nominal value issued net of the nominal values canceled through exchanges or repurchases, expressed in millions.
[2] Nominal annual interest rate.