v3.26.1
Revenue From Contracts With Customers - Additional Information (Detail)
€ in Billions
12 Months Ended
Dec. 31, 2025
EUR (€)
Dec. 31, 2024
EUR (€)
Disclosure Of Revenue Allocated To The Relevant Business Units [Line Items]    
Remaining Performance Obligations € 6.6 € 4.8
Non Cancellable Remaining Performance Obligations 4.7 3.7
Cancellable Remaining Performance Obligations € 1.9 € 1.1
Percentage of Revenue Obligations to be recognized from 2026 to 2028 80  
Percentage of Entity's Revenue 10.00% 10.00%