XML 148 R236.htm IDEA: XBRL DOCUMENT v3.20.1
Investments for Account of Policyholders - Additional Information (Detail) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of investments for account of policyholders [Line Items]      
Rental income € 125 € 129 € 121
Investments in real estate [member]      
Disclosure of investments for account of policyholders [Line Items]      
Rental income 42 47 50
Direct operating expenses € 6 € 4 € 4