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OPERATING SEGMENT INFORMATION - Segment Revenue (Details) - EUR (€) € in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disclosure of operating segments [line items]
Revenue	€ 2,275	€ 1,518	€ 4,254	€ 2,859
P&ARP
Disclosure of operating segments [line items]
Revenue	1,347	904	2,512	1,668
A&T
Disclosure of operating segments [line items]
Revenue	440	274	813	508
AS&I
Disclosure of operating segments [line items]
Revenue	488	340	929	683
Segment revenue
Disclosure of operating segments [line items]
Revenue	2,310	1,539	4,322	2,900
Segment revenue | P&ARP
Disclosure of operating segments [line items]
Revenue	1,348	907	2,516	1,673
Segment revenue | A&T
Disclosure of operating segments [line items]
Revenue	461	287	846	532
Segment revenue | AS&I
Disclosure of operating segments [line items]
Revenue	501	345	960	695
Inter-segment elimination
Disclosure of operating segments [line items]
Revenue	(35)	(21)	(68)	(41)
Inter-segment elimination | P&ARP
Disclosure of operating segments [line items]
Revenue	(1)	(3)	(4)	(5)
Inter-segment elimination | A&T
Disclosure of operating segments [line items]
Revenue	(21)	(13)	(33)	(24)
Inter-segment elimination | AS&I
Disclosure of operating segments [line items]
Revenue	€ (13)	€ (5)	€ (31)	€ (12)

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-IssueDate 2021-01-01
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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