v3.26.1
Financial structure and financial costs - Fair value hierarchy (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Financial structure, financial costs and financial instruments        
Equity instruments $ 1,914 $ 1,665 $ 1,543 $ 1,051
Measured at fair value | Financial instruments, excluding commodity contracts        
Financial structure, financial costs and financial instruments        
Assets and liabilities held for trading (6) 174 207  
Equity instruments 290 391 255  
Total fair value 32 (1,631) (1,242)  
Measured at fair value | Financial instruments, excluding commodity contracts | Level 1        
Financial structure, financial costs and financial instruments        
Equity instruments 290 391 255  
Total fair value 290 391 255  
Measured at fair value | Financial instruments, excluding commodity contracts | Level 2        
Financial structure, financial costs and financial instruments        
Assets and liabilities held for trading (6) 174 207  
Total fair value (258) (2,022) (1,497)  
Fair value hedge | Measured at fair value | Financial instruments, excluding commodity contracts        
Financial structure, financial costs and financial instruments        
Hedge instruments (394) (821) (600)  
Fair value hedge | Measured at fair value | Financial instruments, excluding commodity contracts | Level 2        
Financial structure, financial costs and financial instruments        
Hedge instruments (394) (821) (600)  
Cash flow hedge | Measured at fair value | Financial instruments, excluding commodity contracts        
Financial structure, financial costs and financial instruments        
Hedge instruments 142 (1,375) (1,104)  
Cash flow hedge | Measured at fair value | Financial instruments, excluding commodity contracts | Level 2        
Financial structure, financial costs and financial instruments        
Hedge instruments $ 142 $ (1,375) $ (1,104)