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Note 25 - Post-employment and other employee benefit commitments. Equity Impact (Details) - EUR (€) | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Breakdown of remeasurement total effect in equity Line Items |  |  |
Remeasurement, charges to equity | € 329,000,000 | € 34,000,000 | € 140,000,000
Defined benefit plans impact on equity [Member] |  |  |
Breakdown of remeasurement total effect in equity Line Items |  |  |
Remeasurement, charges to equity | 254,000,000 | 81,000,000 | (40,000,000)
Post employent medical beneficts [Member] |  |  |
Breakdown of remeasurement total effect in equity Line Items |  |  |
Remeasurement, charges to equity | € 74,000,000 | € (47,000,000) | € 179,000,000

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