v3.19.3.a.u2
Income Tax - Summary of Deferred Tax Reconciliation to Balance Sheet (Details) - EUR (€)
€ in Millions
Dec. 31, 2019
Dec. 31, 2018
Deferred Tax Assets And Liabilities [Abstract]    
Deferred tax assets € 9 € 8
Deferred tax liabilities € 2 € 2