Santander Group - Reorganization of insurance business, etc. (Details) - IFRS Scenario Plan [Member] - EUR (€) € in Millions	Jun. 24, 2019	Jan. 21, 2019
Disclosure of detailed information about business combination [line items]
Payment on agreement termination	€ 936.5
Portion of business acquired by Aegon (as a percent)	51.00%
Portion of business acquired by Mapfre (as a percent)		50.01%

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

No definition available.

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