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Taxation - Income Tax Expense - Deferred Tax Assets and Liabilities (Details) - EUR (€) € in Thousands		12 Months Ended
	Dec. 21, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of accounting and taxable income
Deferred tax		€ 58,275	€ (21,189)	€ (149,444)
Current tax		110,184	152,625	183,852
Total income tax expense		€ 168,459	€ 131,436	34,408
Impact recorded in income tax expense due to change in tax rate				(171,169)
United States
Reconciliation of accounting and taxable income
Tax rate (as a percent)	35.00%	21.00%
Impact recorded in income tax expense due to change in tax rate				€ 171,000

X

- Definition

The amount of tax expense (income) relating to changes in deferred tax liabilities and deferred tax assets. Also includes the amount of current tax expense (income) and adjustments for the current tax of prior periods.

+ References

No definition available.

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X

- Definition

The applicable income tax rate.

+ References

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- Definition

The amount of current tax expense (income) and adjustments for the current tax of prior periods. [Refer: Current tax expense (income); Adjustments for current tax of prior periods]

+ References

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- Definition

The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to changes in the tax rate. [Refer: Accounting profit]

+ References

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