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INCOME TAX (Tables) | 12 Months Ended
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Dec. 31, 2021
Income Taxes [Abstract] |
Schedule of Current and Deferred Components of Income Tax |
|  | Year ended December 31,
(in millions of Euros) |  | 2021 |  | 2020 |  | 2019
Current tax expense |  | (26) |  | (14) |  | (32)
Deferred tax (expense) / benefit |  | (29) |  | 31 |  | 14
Income tax (expense) / benefit |  | (55) |  | 17 |  | (18)
Schedule of Income Tax Reconciliation Using Composite Statutory Income Tax Rate Applicable by Tax Jurisdiction | The Group's effective tax rate reconciliation is as follows:
|  | Year ended December 31,
(in millions of Euros) |  | 2021 |  | 2020 |  | 2019
Income / (loss) before tax |  | 317 |  | (34) |  | 82
Statutory tax rate applicable to the parent company (A) |  | 28.4% |  | 32.0% |  | 34.4%
Income tax (expense) / benefit calculated at statutory tax rate |  | (90) |  | 11 |  | (28)
Effect of foreign tax rate (A) |  | 15 |  | 2 |  | 3
Changes in recognized and unrecognized deferred tax assets (B) |  | 24 |  | 15 |  | (10)
Change in tax laws and rates (C) |  | — |  | — |  | 21
Other |  | (4) |  | (11) |  | (4)
Income tax (expense) / benefit |  | (55) |  | 17 |  | (18)
Effective income tax rate |  | 17% |  | 49% |  | 22%
(A)The parent company was a French company for the years ended December 31, 2021, 2020 and 2019. For the years ended December 31, 2021, 2020 and 2019, the effect of foreign tax rate resulted from the geographical mix of our pre-tax results. (B)For the year ended December 31, 2021, the changes in recognized and unrecognized deferred tax assets mainly related to the recognition of deferred tax assets on temporary differences at one of our main operating entities in the United States. For the year ended December 31, 2020, the changes mainly related to recognized deferred tax assets on prior-year losses carried forward at one of our main operating entities in the United States, following some clarification on U.S. interest limitation rules and the CARES Act. (C)For the year ended December 31, 2019, the change in tax laws and rates related mainly to the application of the Swiss Federal Tax Reform voted in May 2019 and enacted in the Canton where one of our entities is located.

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- Definition The disclosure of deferred taxes. [Refer: Deferred tax liabilities; Deferred tax assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_10_e&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The disclosure of types of temporary differences, unused tax losses and unused tax credits. [Refer: Unused tax credits [member]; Unused tax losses [member]; Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2021-01-01 -Paragraph 81 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_g&doctype=Standard -URIDate 2021-03-24 + Details
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