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Acquisitions and divestitures (Tables) | 12 Months Ended
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Dec. 31, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract] |
Schedule of Business Acquisitions, by Acquisition | The following table summarizes the final total consideration and allocated acquisition date fair values of assets acquired and liabilities assumed, inclusive of measurement-period adjustments (in millions):
Cash and cash equivalents |  | $ | 681 |
Inventories |  | 5,014 |
Property, plant and equipment, net |  | 318 |
Finite-lived intangible assets—developed-product-technology rights |  | 19,590 |
IPR&D |  | 1,060 |
Goodwill |  | 3,136 |
Deferred tax asset |  | 795 |
Deferred tax liability |  | (2,488) |
Other assets and liabilities, net |  | (273) |
Total assets acquired, net of liabilities assumed |  | $ | 27,833 |
The following table summarizes the final total consideration and allocated acquisition date fair values of assets acquired and liabilities assumed, inclusive of measurement-period adjustments (in millions):
Cash and cash equivalents |  | $ | 86 |
Marketable securities |  | 235 |
Inventories |  | 41 |
Finite-lived intangible assets—developed-product-technology rights |  | 3,499 |
Goodwill |  | 649 |
Other liabilities, net |  | (83) |
Deferred tax liability, net |  | (502) |
Total assets acquired, net of liabilities assumed |  | $ | 3,925 |
Schedule of Supplemental Pro Forma Financial Information | The following table presents the unaudited supplemental pro forma results of a hypothetical combined Amgen and Horizon entity for the years ended December 31, 2023 and 2022, as if the acquisition of Horizon had occurred on January 1, 2022 (in millions):
| Years ended December 31,
| 2023 |  | 2022
Total revenues | $ | 30,969 |  |  | $ | 29,964 |
Net income | $ | 5,383 |  |  | $ | 2,381 |

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- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-3 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-2 + Details
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