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Provisions for employee benefits - Maturity analysis (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Statement |  |
Net benefit liability (asset) | € 1,136 | € 1,117
Other benefit plans |  |
Statement |  |
Net benefit liability (asset) | € 278 | € 309
Other benefit plans | Weighted average |  |
Statement |  |
Weighted average duration of benefit obligation | 3 years | 2 years 7 months 6 days
Other benefit plans | within 1 year |  |
Statement |  |
Net benefit liability (asset) | € 73 | € 81
Other benefit plans | Later than one year and not later than two years |  |
Statement |  |
Net benefit liability (asset) | 68 | 72
Other benefit plans | Later than two years and not later than three years |  |
Statement |  |
Net benefit liability (asset) | 61 | 67
Other benefit plans | Later than three years and not later than four years |  |
Statement |  |
Net benefit liability (asset) | 17 | 20
Other benefit plans | Later than four years and not later than five years |  |
Statement |  |
Net benefit liability (asset) | 14 | 17
Other benefit plans | beyond 5 years |  |
Statement |  |
Net benefit liability (asset) | 45 | 57
Italian defined benefit plans |  |
Statement |  |
Net defined benefit liability (asset) | € 269 | € 275
Italian defined benefit plans | Weighted average |  |
Statement |  |
Weighted average duration of defined benefit obligation | 9 years 4 months 24 days | 10 years 1 month 6 days
Italian defined benefit plans | within 1 year |  |
Statement |  |
Net defined benefit liability (asset) | € 17 | € 15
Italian defined benefit plans | Later than one year and not later than two years |  |
Statement |  |
Net defined benefit liability (asset) | 16 | 16
Italian defined benefit plans | Later than two years and not later than three years |  |
Statement |  |
Net defined benefit liability (asset) | 12 | 18
Italian defined benefit plans | Later than three years and not later than four years |  |
Statement |  |
Net defined benefit liability (asset) | 10 | 14
Italian defined benefit plans | Later than four years and not later than five years |  |
Statement |  |
Net defined benefit liability (asset) | 15 | 11
Italian defined benefit plans | beyond 5 years |  |
Statement |  |
Net defined benefit liability (asset) | 199 | 201
Foreign defined benefit plan |  |
Statement |  |
Net defined benefit liability (asset) | € 412 | € 385
Foreign defined benefit plan | Weighted average |  |
Statement |  |
Weighted average duration of defined benefit obligation | 18 years 1 month 6 days | 17 years 4 months 24 days
Foreign defined benefit plan | within 1 year |  |
Statement |  |
Net defined benefit liability (asset) | € 33 | € 54
Foreign defined benefit plan | Later than one year and not later than two years |  |
Statement |  |
Net defined benefit liability (asset) | 35 | 56
Foreign defined benefit plan | Later than two years and not later than three years |  |
Statement |  |
Net defined benefit liability (asset) | 32 | 63
Foreign defined benefit plan | Later than three years and not later than four years |  |
Statement |  |
Net defined benefit liability (asset) | 39 | 64
Foreign defined benefit plan | Later than four years and not later than five years |  |
Statement |  |
Net defined benefit liability (asset) | 49 | 74
Foreign defined benefit plan | beyond 5 years |  |
Statement |  |
Net defined benefit liability (asset) | 224 | 74
FISDE and other foreign medical plans |  |
Statement |  |
Net defined benefit liability (asset) | € 177 | € 148
FISDE and other foreign medical plans | Weighted average |  |
Statement |  |
Weighted average duration of defined benefit obligation | 13 years 3 months 18 days | 12 years 9 months 18 days
FISDE and other foreign medical plans | within 1 year |  |
Statement |  |
Net defined benefit liability (asset) | € 9 | € 9
FISDE and other foreign medical plans | Later than one year and not later than two years |  |
Statement |  |
Net defined benefit liability (asset) | 8 | 7
FISDE and other foreign medical plans | Later than two years and not later than three years |  |
Statement |  |
Net defined benefit liability (asset) | 7 | 6
FISDE and other foreign medical plans | Later than three years and not later than four years |  |
Statement |  |
Net defined benefit liability (asset) | 7 | 6
FISDE and other foreign medical plans | Later than four years and not later than five years |  |
Statement |  |
Net defined benefit liability (asset) | 7 | 6
FISDE and other foreign medical plans | beyond 5 years |  |
Statement |  |
Net defined benefit liability (asset) | € 139 | € 114

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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_140_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The weighted average duration of a defined benefit obligation. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 147 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_147_c&doctype=Standard -URIDate 2019-03-27 + Details
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