v3.26.1
Acquisitions and Disposals - Summary Of Fair Values Of The Identifiable Assets Acquired And The Liabilities Assumed (Detail) - At fair value [member]
$ in Millions
Dec. 31, 2025
USD ($)
Refinor [member]  
Disclosure of fair values of the identifiableassets acquired andtheliabilities assumed [Line Items]  
Property, plant and equipment $ 100
Inventories 8
Other receivables 1
Trade receivables 6
Provisions (2)
Deferred income tax liabilities, net (3)
Loans (23)
Accounts payable (37)
Identifiable assets acquired (liabilities assumed) 50
Mobil Argentina S.A. [Member]  
Disclosure of fair values of the identifiableassets acquired andtheliabilities assumed [Line Items]  
Intangible assets 117
Property, plant and equipment 161
Other receivables 7
Trade receivables 10
Cash and cash equivalents 60
Provisions (6)
Deferred income tax liabilities, net (15)
Accounts payable (7)
Identifiable assets acquired (liabilities assumed) 327
OLCLP [Member]  
Disclosure of fair values of the identifiableassets acquired andtheliabilities assumed [Line Items]  
Property, plant and equipment 93
Trade receivables 4
Investments in financial assets 2
Cash and cash equivalents 14
Deferred income tax liabilities, net (1)
Income tax liability (2)
Accounts payable (3)
Identifiable assets acquired (liabilities assumed) 107
VMI [Member]  
Disclosure of fair values of the identifiableassets acquired andtheliabilities assumed [Line Items]  
Intangible assets 463
Property, plant and equipment 81
Other receivables 23
Cash and cash equivalents 3
Provisions (6)
Other liabilities (24)
Accounts payable (17)
Identifiable assets acquired (liabilities assumed) $ 523