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Other Assets and Receivables - Summary of Movements in Provision for Doubtful Debts (Detail) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure Of Other Assets And Receivables [abstract]    
Beginning balance € (120) € (88)
Additions charged to earnings (19) (33)
Unused amounts reversed through the income statement 3 5
Disposal of business 3 0
Used during the year 2 3
Transfers to disposal groups 4  
Net exchange differences (6) (6)
Ending balance € (134) € (120)