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Derivative financial instruments and market risks - Disclosure of Financial Currency Hedging Instruments in Place with Notional Amount Translated (Details) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 EUR (€)	Dec. 31, 2022 EUR (€)	Dec. 31, 2021 EUR (€)	Dec. 31, 2023 USD ($)
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Derivative financial assets	€ 201.0
Derivative financial liabilities	291.0
Change in fair value of cash flow hedges	(1.0)	€ 7.0	€ (6.0)
Forward currency sales in US Dollar
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Notional amount of forward sales | $				$ 3,615
Derivative financial assets	54.0
Forward currency purchases in US dollar, US bond
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Notional amount of forward sales | $				1,000
Derivative financial liabilities	31.0
Change in fair value of cash flow hedges	2.7
Forward currency purchases in US dollar, commercial paper
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Notional amount of forward sales | $				$ 1,044
Derivative financial liabilities	3.0
Change in fair value of cash flow hedges	0.7
Notional amount
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	17,334.0	12,556.0	16,948.0
Notional amount | Forward currency sales
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	10,279.0	7,559.0	7,655.0
Notional amount | Forward currency purchases
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	7,055.0	4,997.0	9,293.0
Notional amount | Less than 1 year | Forward currency sales in US Dollar
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	6,628.0	6,114.0	5,384.0
Notional amount | Less than 1 year | Forward currency sales in Singapore Dollar
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	1,556.0	0.0	0.0
Notional amount | Less than 1 year | Forward Currency Sales In Chinese Yuan
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	513.0	203.0	70.0
Notional amount | Less than 1 year | Forward currency purchases in US Dollar
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	3,073.0	2,011.0	4,816.0
Notional amount | Less than 1 year | Forward currency purchases in Singapore Dollar
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	2,696.0	2,154.0	2,910.0
Notional amount | Less than 1 year | Forward currency purchases In Japanese yen
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	341.0	205.0	235.0
Fair value
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	53.0	90.0	212.0
Fair value | Forward currency sales
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	111.0	66.0	15.0
Fair value | Forward currency purchases
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	(58.0)	24.0	197.0
Fair value | Less than 1 year | Forward currency sales in US Dollar
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	101.0	59.0	23.0
Fair value | Less than 1 year | Forward currency sales in Singapore Dollar
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	6.0	0.0	0.0
Fair value | Less than 1 year | Forward Currency Sales In Chinese Yuan
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	4.0	2.0	(2.0)
Fair value | Less than 1 year | Forward currency purchases in US Dollar
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	(52.0)	(4.0)	128.0
Fair value | Less than 1 year | Forward currency purchases in Singapore Dollar
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	(10.0)	22.0	75.0
Fair value | Less than 1 year | Forward currency purchases In Japanese yen
Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items]
Financial currency hedging instruments in place	€ 3.0	€ 4.0	€ (2.0)

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