v3.26.1
Other financial assets - Additional Information (Detail)
€ in Millions
12 Months Ended
Jul. 22, 2025
EUR (€)
Dec. 31, 2025
EUR (€)
Sep. 30, 2025
EUR (€)
Mar. 05, 2025
EUR (€)
Dec. 31, 2024
EUR (€)
Disclosure Of Other Financial Assets Measured at Fair Value Through Profit Or Loss [Line Items]          
Convertible promissory note acquired through business combination   € 13      
Convertible promissory note interest rate   5      
Loan receivable acquired through business combination   € 65      
Loan prepayment penalty fee income € 2        
Convertible promissory note     € 4    
Other non-current financial assets   135     € 34
Other current financial assets   9      
Contingent consideration recognised as of acquisition date       € 19  
Letter of credit outstanding balance   8    
Intelsat Acquisition [Member]          
Disclosure Of Other Financial Assets Measured at Fair Value Through Profit Or Loss [Line Items]          
Other equity securities acquired through business combination   57      
Debt securities acquired through business combination   15      
Other financial assets   89      
Other non-current financial assets   154      
Other current financial assets   € 7