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Long-Term Borrowings - Additional Information (Detail) - Aegon N.V [member]
12 Months Ended
Dec. 31, 2022
Bottom of range [member]  
Disclosure of long-term borrowings [Line Items]  
Borrowing maturity 1 year
Long-term borrowing, interest rate 1.00%
Top of range [member]  
Disclosure of long-term borrowings [Line Items]  
Borrowing maturity 17 years
Long-term borrowing, interest rate 6.625%