v3.25.4
Treasury risk management - Summary of Derivatives Used to Hedge (Details) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about hedges [line items]    
Current financial assets € 5,062 € 7,466
Non-Current financial assets 3,065 1,571
Trade and other payables (17,076) (16,893)
Current financial liabilities (2,582) (6,987)
Non-current financial liabilities (25,696) (25,066)
Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 20 203
Current financial assets 50 149
Non-Current financial assets 140 68
Total assets 210 420
Trade and other payables (51) (56)
Current financial liabilities (48) (152)
Non-current financial liabilities (404) (442)
Total liabilities (503) (650)
Total (293) (230)
Fair value hedges | Foreign exchange derivatives | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 0 0
Current financial assets 0 0
Non-Current financial assets 0 0
Trade and other payables 0 0
Current financial liabilities 0 0
Non-current financial liabilities 0 0
Total 0 0
Fair value hedges | Interest rate derivatives | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 0 0
Current financial assets 0 0
Non-Current financial assets 0 0
Trade and other payables 0 0
Current financial liabilities (9) 0
Non-current financial liabilities (295) (423)
Total (304) (423)
Cash flow hedges | Foreign exchange derivatives | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 5 59
Current financial assets 0 0
Non-Current financial assets 0 0
Trade and other payables (30) (28)
Current financial liabilities 0 0
Non-current financial liabilities 0 0
Total (25) 31
Cash flow hedges | Interest rate derivatives | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 0 0
Current financial assets 0 0
Non-Current financial assets 117 58
Trade and other payables 0 0
Current financial liabilities 0 0
Non-current financial liabilities (102) (3)
Total 15 55
Cash flow hedges | Commodity contracts | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 3 126
Current financial assets 0 0
Non-Current financial assets 0 0
Trade and other payables (10) (20)
Current financial liabilities 0 0
Non-current financial liabilities 0 0
Total (7) 106
Hedges on the net investment in foreign operations | Foreign exchange derivatives | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 0 0
Current financial assets 12 69
Non-Current financial assets 0 0
Trade and other payables 0 0
Current financial liabilities (36) (28)
Non-current financial liabilities 0 0
Total (24) 41
Hedges on the net investment in foreign operations | Interest rate derivatives | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 0 0
Current financial assets 0 0
Non-Current financial assets 19 0
Trade and other payables 0 0
Current financial liabilities 0 0
Non-current financial liabilities 0 (16)
Total 19 (16)
Hedge accounting not applied | Foreign exchange derivatives | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 12 18
Current financial assets 38 79
Non-Current financial assets 4 0
Trade and other payables (11) (8)
Current financial liabilities (3) (124)
Non-current financial liabilities 0 0
Total 40 (35)
Hedge accounting not applied | Interest rate derivatives | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 0 0
Current financial assets 0 1
Non-Current financial assets 0 10
Trade and other payables 0 0
Current financial liabilities 0 0
Non-current financial liabilities (7) 0
Total (7) 11
Hedge accounting not applied | Commodity contracts | Derivative used to hedge    
Disclosure of detailed information about hedges [line items]    
Net deferred tax assets 0 0
Current financial assets 0 0
Non-Current financial assets 0 0
Trade and other payables 0 0
Current financial liabilities 0 0
Non-current financial liabilities 0 0
Total € 0 € 0