Note 39 Personnel Expenses Breakdown (Details) - EUR (€)	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Personnel expenses [Line Items]
Wages and salaries	€ 1,823,000,000	€ 1,825,000,000
Social security contributions	333,000,000	348,000,000
Contributions to plan by employer, net defined benefit liability (asset)	37,000,000	40,000,000
Post-employment benefit expense, defined benefit plans	27,000,000	26,000,000
Other employee expense	152,000,000	147,000,000
Employee benefits expense	€ 2,371,000,000	€ 2,385,000,000

Personnel expenses

No definition available.

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- Definition

The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

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- Definition

The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment.

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- Definition

The amount of employee expenses that the entity does not separately disclose in the same statement or note.

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- Definition

The amount of post-employment benefit expense relating to defined benefit plans. [Refer: Defined benefit plans [member]]

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A class of employee benefits expense that represents social security contributions. [Refer: Employee benefits expense]

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- Definition

A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense]

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