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Investments (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Investments |  |
Book amount - beginning of the year | € 12,092 | € 5,887
Additions and subscriptions | 1,213 | 1,607
Divestments and reimbursements |  | (480)
Share of profit of equity-accounted investments | 1,622 | 2,163
Share of loss of equity-accounted investments | (281) | (285)
Deduction for dividends | (2,000) | (1,194)
Change in the scope of consolidation | (211) | (1,827)
Currency translation differences | (412) | 1
Other changes | 607 | 6,220
Book amount - end of the year | 12,630 | 12,092
Investments in unconsolidated entities controlled by Eni |  |
Investments |  |
Book amount - beginning of the year | 50 | 44
Additions and subscriptions | 3 | 21
Divestments and reimbursements |  | (2)
Share of profit of equity-accounted investments | 4 | 5
Share of loss of equity-accounted investments | (3) | (6)
Deduction for dividends | (1) | (3)
Change in the scope of consolidation | 3 | 5
Currency translation differences | (2) | 2
Other changes | (1) | (16)
Book amount - end of the year | 53 | 50
Joint ventures |  |
Investments |  |
Book amount - beginning of the year | 7,065 | 2,057
Additions and subscriptions | 1,024 | 900
Divestments and reimbursements |  | (1)
Share of profit of equity-accounted investments | 818 | 474
Share of loss of equity-accounted investments | (149) | (197)
Deduction for dividends | (939) | (483)
Change in the scope of consolidation | 13 | (710)
Currency translation differences | (244) | (231)
Other changes | 662 | 5,256
Book amount - end of the year | 8,250 | 7,065
Associates |  |
Investments |  |
Book amount - beginning of the year | 4,977 | 3,786
Additions and subscriptions | 186 | 686
Divestments and reimbursements |  | (477)
Share of profit of equity-accounted investments | 800 | 1,684
Share of loss of equity-accounted investments | (129) | (82)
Deduction for dividends | (1,060) | (708)
Change in the scope of consolidation | (227) | (1,122)
Currency translation differences | (166) | 230
Other changes | (54) | 980
Book amount - end of the year | € 4,327 | € 4,977

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