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Derivative Financial Instruments and Risk Management Policies - Interest Rate Risk (Details) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Financial Instruments [Abstract]
Percentage of net debt plus commitments pegged to fixed interest rates for a period greater than one year	88.30%	95.40%
Percentage of net debt at floating rates or at fixed rates maturing in under one year	11.70%
Net financial expenses	€ (1,313)
Decrease in net financial results from prior year	€ 51

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- Definition

The amount of income or cost associated with interest and other financing activities of the entity.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Financial Instruments [Abstract]

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Increase (Decrease) in Finance Income (Cost) from Prior Year

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Percentage Of Net Debt At Floating Rates Or Fixed Rates Greater Than One Year

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Percentage Of Net Debt Plus Commitments Under Fixed Interest Rates

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