v3.26.1
Net debt (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Net debt      
Non-current installments of loans at beginning of period $ (24,715)    
Non-current instalments of loans - Cash flow (1,997)    
Non-current installments of loans - Non-cash & other 2,889    
Non-current installments of loans - Exchange movements 140    
Non-current installments of loans at end of period (23,683) $ (24,714)  
Non-current installments of leases at beginning of period (1,421)    
Non-current installments of leases - Non-cash & other (917)    
Non-current installments of leases - Exchange movements 16    
Non-current installments of leases at end of period (2,322) (1,272)  
Total long-term debt at beginning of period (26,136)    
Total long-term debt - Cash flow (1,997)    
Total long-term debt - Non-cash & other 1,972    
Total long-term debt - Exchange movements 156    
Total long-term debt at end of period (26,005)    
Current instalments of loans at beginning of period (2,460)    
Current instalments of loans - Cash flow 2,453    
Current instalments of loans - Non-cash & other (2,870)    
Current instalments of loans - Exchange movements 18    
Current instalments of loans at end of period (2,859)    
Current instalments of leases at beginning of period (382)    
Current instalments of leases - Cash flow 227    
Current instalments of leases - Non-cash & other (275)    
Current instalments of leases - Exchange movements 4    
Current instalments of leases at end of period (426) (361)  
Interest-bearing loans and borrowings at beginning of period (3,104)    
Interest-bearing loans and borrowings at end of period (5,808) (6,492)  
Total current debt at beginning of period (3,486)    
Total current debt - Cash flow 368    
Total current debt - Non-cash & other (3,145)    
Total current debt - Exchange movements 29    
Total current debt at end of period (6,234)    
Gross borrowings at beginning of period (29,622)    
Gross borrowings - Cash flow (1,629)    
Gross borrowings - Non-cash & other (1,173)    
Gross borrowings - Exchange movements 185    
Gross borrowings at end of period (32,239)    
Net derivative financial instruments at beginning of period 507    
Net derivative financial instruments - Cash flow 377    
Net derivative financial instruments - Non-cash & other (525)    
Net derivative financial instruments at end of period 359    
Net borrowings at beginning of period (29,115)    
Net borrowings - Cash flow (1,252)    
Net borrowings - Non-cash & other (1,698)    
Net borrowings - Exchange movements 185    
Net borrowings at end of period (31,880)    
Cash and cash equivalents at the beginning of the period 5,711    
Cash and cash equivalents - Cash flow (808)    
Cash and cash equivalents - Exchange movements (10)    
Cash and cash equivalents at the end of the period 4,893 7,058  
Other investments - current at beginning of period 30    
Other investments, current - Cash flow 45    
Other investments - current at end of period 75 50  
Cash and investments at beginning of period 5,741    
Cash and investments - Cash flow (763)    
Cash and investments - Exchange movements (10)    
Cash and investments at end of period 4,968    
Net debt at beginning of period (23,374)    
Net debt - Cash flow (2,015)    
Net debt - Non-cash & other (1,698)    
Net debt - Exchange movements 175    
Net debt at end of period (26,912)    
Increase (decrease) in net debt 3,538    
Issue of loans and borrowings 1,997 9  
Repayment of loans and borrowings 2,453 $ 16  
Cash collateral on financial derivatives 368   $ 473
Cash collateral posted by the Group 70   $ 22
Long-term loans      
Net debt      
Issue of loans and borrowings 1,990    
Repayment of loans and borrowings 2,450    
Commercial paper      
Net debt      
Current borrowings and current portion of non-current borrowing - Cash flow (2,407)    
Interest-bearing loans and borrowings at end of period (2,407)    
Collateral received from derivative counterparties      
Net debt      
Interest-bearing loans and borrowings at beginning of period (473)    
Current borrowings and current portion of non-current borrowing - Cash flow 105    
Interest-bearing loans and borrowings at end of period (368)    
Other short-term borrowings excluding overdrafts      
Net debt      
Interest-bearing loans and borrowings at beginning of period (158)    
Current borrowings and current portion of non-current borrowing - Cash flow (13)    
Current borrowings and current portion of non-current borrowing - Exchange movements 6    
Interest-bearing loans and borrowings at end of period (165)    
Overdrafts      
Net debt      
Interest-bearing loans and borrowings at beginning of period (13)    
Current borrowings and current portion of non-current borrowing - Cash flow 3    
Current borrowings and current portion of non-current borrowing - Exchange movements 1    
Interest-bearing loans and borrowings at end of period $ (9)