v3.26.1
Balances and Transactions with Related Parties - Information Detailed in the Tables below Shows the Balances with Associates and Joint Ventures (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of balance and transactions with related parties [line items]      
Other receivables Non Current $ 648 $ 337 $ 158
Other receivables Current 1,159 552 381
Trade receivables Current 1,654 1,620 973
Revenues 18,448 19,293 17,311
Costs and expenses 13,348 13,910 13,853
Investment in financial assets Non Current 0 0 8
Investment in financial assets Current 262 390 264
Accounts payable Current 2,238 2,879 2,319
Current contract liabilities 117 73 69
Current contract Assets 3 30 10
Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Other receivables Current 7 5 5
Trade receivables Current 39 79 47
Revenues 521 556 449
Costs and expenses 283 286 299
Net interest income (loss) 0 2 2
Investment in financial assets Non Current   0 4
Investment in financial assets Current 4 3 4
Accounts payable Current 36 67 59
Current contract liabilities 0 0  
Current contract Assets 3 16 3
Associates [member]      
Disclosure of balance and transactions with related parties [line items]      
Other receivables Non Current 200 159 43
Other receivables Current 29 30 1
Trade receivables Current 65 21 6
Revenues 185 72 55
Costs and expenses 215 139 130
Net interest income (loss)   0 1
Investment in financial assets Non Current   0 4
Investment in financial assets Current 5 4  
Accounts payable Current 41 25 18
Current contract liabilities 44    
Joint Ventures and Associates [Member]      
Disclosure of balance and transactions with related parties [line items]      
Other receivables Non Current 200 159 43
Other receivables Current 36 35 6
Trade receivables Current 104 100 53
Revenues 706 628 504
Costs and expenses 498 425 429
Net interest income (loss) 0 2 3
Investment in financial assets Non Current   0 8
Investment in financial assets Current 9 7 4
Accounts payable Current 77 92 77
Current contract liabilities 44 0  
Current contract Assets 3 16 3
CDS [member] | Associates [member]      
Disclosure of balance and transactions with related parties [line items]      
Trade receivables Current 1 1  
Revenues 7 1 0
YPF Gas [member] | Associates [member]      
Disclosure of balance and transactions with related parties [line items]      
Other receivables Current 0 1 1
Trade receivables Current 10 20 6
Revenues 86 67 52
Costs and expenses 3 3 6
Net interest income (loss) 0 0 1
Accounts payable Current 1 1 1
Oldelval [member] | Associates [member]      
Disclosure of balance and transactions with related parties [line items]      
Other receivables Non Current 154 140 43
Other receivables Current 13 4 0
Revenues 1 1 0
Costs and expenses 122 62 60
Investment in financial assets Non Current   0 4
Investment in financial assets Current 4 4  
Accounts payable Current 33 13 10
Termap [member] | Associates [member]      
Disclosure of balance and transactions with related parties [line items]      
Costs and expenses 20 23 22
Accounts payable Current 2 3 2
GPA [member] | Associates [member]      
Disclosure of balance and transactions with related parties [line items]      
Costs and expenses 23 21 16
Accounts payable Current 2 4 1
OTAMERICA [Member] | Associates [member]      
Disclosure of balance and transactions with related parties [line items]      
Other receivables Non Current 46 19  
Other receivables Current   8  
Trade receivables Current 1    
Revenues 4    
Costs and expenses 47 30 26
Investment in financial assets Current 1    
Accounts payable Current 3 4 4
Gas Austral [member] | Associates [member]      
Disclosure of balance and transactions with related parties [line items]      
Revenues 3 3 3
VMOS [Member] | Associates [member]      
Disclosure of balance and transactions with related parties [line items]      
Other receivables Current 16 17  
Trade receivables Current 53    
Revenues 84    
Current contract liabilities 44    
YPF EE [member] | Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Other receivables Current 6 5 5
Trade receivables Current 6 4 5
Revenues 22 25 24
Costs and expenses 134 110 115
Net interest income (loss)   0 1
Investment in financial assets Non Current   0 4
Investment in financial assets Current 4 3  
Accounts payable Current 32 43 39
Profertil [member] | Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Trade receivables Current 0 14 15
Revenues 74 100 73
Costs and expenses 110 121 135
Accounts payable Current 0 17 15
MEGA [Member] | Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Trade receivables Current 33 50 15
Revenues 366 362 256
Costs and expenses 1 10 3
Net interest income (loss) 0 0 1
Accounts payable Current 0 1 0
Current contract liabilities 0 0  
Current contract Assets 3 16 3
Refinor [member] | Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Trade receivables Current 0 11 12
Revenues 59 68 94
Costs and expenses 10 11 22
Net interest income (loss) 0 2  
Investment in financial assets Current     4
Accounts payable Current 0 1 1
OLCLP [member] | Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Revenues 0 1 1
Costs and expenses 5 14 13
Accounts payable Current 0 3 2
Sustentator [member] | Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Revenues 0 0 1
CT Barragan [Member] | Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Costs and expenses   0 0
OTA [member] | Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Other receivables Current 1    
Costs and expenses 23 20 8
Accounts payable Current 4 2 1
OTC [member] | Joint ventures [Member]      
Disclosure of balance and transactions with related parties [line items]      
Costs and expenses $ 0 0 3
Accounts payable Current   $ 0 $ 1