v3.26.3
Property, plant and equipment (Details 2) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
IfrsStatementLineItems [Line Items]    
Right-of-use assets $ 40,295 $ 36,972
Platforms [Member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets 23,106 21,925
Vessels [Member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets 15,082 13,039
Properties [Member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets 2,107 2,008
Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets 66,469 58,273
Gross carrying amount [member] | Platforms [Member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets 31,412 28,617
Gross carrying amount [member] | Vessels [Member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets 31,608 26,632
Gross carrying amount [member] | Properties [Member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets 3,449 3,024
Accumulated depreciation and amortisation [member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets (26,174) (21,301)
Accumulated depreciation and amortisation [member] | Platforms [Member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets (8,306) (6,692)
Accumulated depreciation and amortisation [member] | Vessels [Member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets (16,526) (13,593)
Accumulated depreciation and amortisation [member] | Properties [Member]    
IfrsStatementLineItems [Line Items]    
Right-of-use assets $ (1,342) $ (1,016)