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BORROWINGS - Currency Concentration of Total Borrowings (Details) - EUR (€) € in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about borrowings [line items]
Borrowings	€ 2,129	€ 2,391	€ 2,361
U.S. Dollar
Disclosure of detailed information about borrowings [line items]
Borrowings	1,055	1,602
Euro
Disclosure of detailed information about borrowings [line items]
Borrowings	1,048	757
Other currencies
Disclosure of detailed information about borrowings [line items]
Borrowings	€ 26	€ 32

X

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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.

+ References

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