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OPERATING SEGMENT INFORMATION - Segment Capital Expenditures (Details) - EUR (€) € in Millions | 6 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020
Disclosure of operating segments [line items] |  |
Capital expenditures | € (74) | € (100)
P&ARP |  |
Disclosure of operating segments [line items] |  |
Capital expenditures | (27) | (38)
A&T |  |
Disclosure of operating segments [line items] |  |
Capital expenditures | (21) | (25)
AS&I |  |
Disclosure of operating segments [line items] |  |
Capital expenditures | (24) | (35)
H&C |  |
Disclosure of operating segments [line items] |  |
Capital expenditures | € (2) | € (2)

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- Definition The cash outflow for the purchases of property, plant and equipment, classified as investing activities. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 16 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_16_a&doctype=Standard -URIDate 2020-01-01 + Details
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