v3.19.3.a.u2
Income Tax - Summary of Reconciliation of Net Deferred Tax (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Reconciliation Of Changes In Deferred Tax Liability Asset [Abstract]      
At January 1 € 6 € 6 € 3
Movement recognized in consolidated statement of operations (11) 136 5
Movement recognized in consolidated statement of changes in equity and other comprehensive income 18 (136) 2
Movement due to acquisition (6) 0 (4)
At December 31 € 7 € 6 € 6