v3.26.1
Discontinued operations - Disclosure of Condensed statement of Comprehensive Income For Discontinued Operations Explanatory (Detail) - EUR (€)
€ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Statement [LineItems]    
Net result from discontinued operations € 608 € 606
Items that will not be reclassified to profit or loss:    
Remeasurements of defined benefit plans (8) 5
Items that may be reclassified subsequently to profit or loss:    
Movements in foreign currency translation and net foreign investment hedging reserves 151 (472)
Total other comprehensive income / (loss) (207) (67)
Total comprehensive income / (loss) 401 538
Discontinued operations [member]    
Statement [LineItems]    
Net result from discontinued operations 52 86
Items that will not be reclassified to profit or loss:    
Remeasurements of defined benefit plans (27) 6
Items that may be reclassified subsequently to profit or loss:    
Movements in foreign currency translation and net foreign investment hedging reserves 16 (52)
Total other comprehensive income / (loss) (11) (45)
Total comprehensive income / (loss) € 41 € 40