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Other Assets and Receivables - Summary of Other Assets and Receivables (Detail) - EUR (€)
€ in Millions
Dec. 31, 2019
Dec. 31, 2018
Jan. 01, 2018
 [1]
Disclosure Of Other Assets And Receivables [abstract]      
Real estate held for own use and equipment € 489 € 498  
Receivables 6,655 6,019  
Accrued income 1,442 1,436  
Right-of-use assets 255    
Other assets and receivables € 8,841 € 7,954 [1] € 10,002
[1] Amounts have been restated to reflect voluntary changes in accounting policies related to liability adequacy testing that was adopted by Aegon effective January 1, 2019. Refer to note 2.1.2 Voluntary changes in accounting policies for details about this change.