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Liabilities related to business combinations and to non-controlling interests (Tables) | 12 Months Ended
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Dec. 31, 2023
Business Combination [Abstract] |
Summary of Movements in Liabilities Related to Business Combinations and to Non-Controlling Interests | Movements in liabilities related to business combinations and to non-controlling interests are shown below:
(€ million) |  |  | Bayer contingent consideration arising from the acquisition of Genzyme | MSD contingent consideration (European Vaccines business) | Shire contingent consideration arising from the acquisition of Translate Bio | Contingent consideration arising from acquisition of Amunix | Other | Total(a)
Balance at January 1, 2021 |  |  | 104 |  | 312 |  | — |  | — |  | 189 |  | 605 |
New transactions(c) |  |  | — |  | — |  | 323 |  | — |  | 37 |  | 360 |
Payments made(d) |  |  | (31) |  | (75) |  | — |  | — |  | (152) |  | (258) |
Fair value remeasurements through profit or loss: (gain)/loss (including unwinding of discount)(b) |  |  | (18) |  | 26 |  | 19 |  | — |  | (31) |  | (4) |
Other movements |  |  | — |  | — |  | — |  | — |  | (14) |  | (14) |
Currency translation differences |  |  | 4 |  | 6 |  | 12 |  | — |  | 3 |  | 25 |
Balance at December 31, 2021 |  |  | 59 |  | 269 |  | 354 |  | — |  | 32 |  | 714 |
New transactions |  |  | — |  | — |  | — |  | 156 |  | — |  | 156 |
Payments made |  |  | (29) |  | (79) |  | — |  | — |  | (28) |  | (136) |
Fair value remeasurements through profit or loss: (gain)/loss (including unwinding of discount)(b) |  |  | (9) |  | 14 |  | 2 |  | (2) |  | — |  | 5 |
Other movements |  |  | — |  | — |  | — |  | — |  | — |  | — |
Currency translation differences |  |  | 5 |  | — |  | 24 |  | 11 |  | — |  | 40 |
Balance at December 31, 2022 |  |  | 26 |  | 204 |  | 380 |  | 165 |  | 4 |  | 779 |
New transactions |  |  | — |  | — |  | — |  | — |  | — |  | — |
Payments made |  |  | (21) |  | (77) |  | — |  | (69) |  | — |  | (167) |
Fair value remeasurements through profit or loss: (gain)/loss (including unwinding of discount)(b) |  |  | (5) |  | — |  | 74 |  | 45 |  | — |  | 114 |
Other movements |  |  | — |  | — |  | — |  | — |  | — |  | — |
Currency translation differences |  |  | — |  | — |  | (13) |  | (4) |  | — |  | (17) |
Balance at December 31, 2023 |  |  | — |  | 127 |  | 441 |  | 137 |  | 4 |  | 709 |
(a) Portion due after more than one year: €501 million as of December 31, 2023 (€674 million as of December 31, 2022 and €577 million as of December 31, 2021); portion due within less than one year: €208 million as of December 31, 2023 (€105 million as of December 31, 2022 and €137 million as of December 31, 2021). (b) Amounts reported within the income statement line item Fair value remeasurement of contingent consideration, and mainly comprising unrealized gains and losses. (c) Mainly corresponds to the recognition of the Shire Human Genetic Therapies Inc. (Shire) contingent consideration liability of $382 million resulting from the acquisition of Translate Bio in September 2021. (d) The “Other” column mainly relates to the contingent consideration liability due to True North Therapeutics as a result of Sanofi's acquisition of Bioverativ which was settled in the first half of 2021.
Summary of Maximum Amount of Contingent Consideration Payable and Firm Commitments to Buy Out Non-Controlling Interests | The table below sets forth the maximum amount of contingent consideration payable in respect of already-marketed products:
December 31, 2023 | Total | Payments due by period
(€ million) | Less than 1 year | From 1 to 3 years | From 3 to 5 years | More than 5 years
Commitments relating to contingent consideration in connection with business combinations | 133 |  | 69 |  | 64 |  | — |  | — |

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