v3.26.1
Cash and Cash Equivalents - Additional Information (Detail) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Detailed information about cash and cash equivalents [line items]      
Effects of changes in exchange rate € (144) € 88 € (38)
Cash and cash equivalents 158 141 98
Net cash flows from (used in) operating activities 434 762 864
Increase (decrease) in net cash flows from investing activities 710    
Net cash flows from (used in) investing activities 1,010 300 (1,996)
Increase (decrease) in net cash flows from financing activities 280    
Net cash flows from (used in) financing activities (2,035) € (1,755) € (3,241)
Increase (decrease) in net cash flows from operating activities € (328)