Personnel expenses (Details) € in Millions	12 Months Ended
Dec. 31, 2019 EUR (€) employee	Dec. 31, 2018 EUR (€) employee	Dec. 31, 2017 EUR (€) employee
Personnel expenses
Salaries and wages	€ 5,953	€ 6,356	€ 6,456
Share-based payment expenses	77	62	99
Pension and other post-employment benefit expenses, net	242	465	445
Social security costs	919	952	845
Total personnel expenses	7,191	7,835	7,845
Equity-settled awards	77	€ 62	€ 97
Net gain on pension plan amendments, curtailments and settlements	€ 131
Average number of employees \| employee	98,322	103,083	101,731

The average number of personnel employed by the entity during a period.

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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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The amount of expense arising from equity-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions in which goods or services received did not qualify for recognition as assets]

+ References

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The amount of expense from share-based payment transactions with employees.

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The increase (decrease) in the net defined benefit liability (asset) resulting from past service cost. Past service cost is the change in the present value of the defined benefit obligation for employee service in prior periods, resulting from a plan amendment (the introduction or withdrawal of, or changes to, a defined benefit plan) or a curtailment (a significant reduction by the entity in the number of employees covered by a plan). [Refer: Net defined benefit liability (asset); 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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A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense]

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Amount of cost (reversal of cost) for pension and other postretirement benefits.

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No definition available.

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