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Trade and Other Current Receivables - Summary of Trade and Other Current Receivables (Detail) - EUR (€)
€ in Millions
Dec. 31, 2018
Dec. 31, 2017
Trade and other current receivables [abstract]    
Trade receivables € 4,350 € 3,439
Prepayments and accrued income 693 452
Other receivables 1,442 1,331
Total trade and other current receivables € 6,485 € 5,222