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Goodwill and Other Intangibles - Other Intangibles (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Intangible Assets Excluding Goodwill [Line Items] |  |
Intangible assets, gross carrying amount | $ 41,603 | $ 41,746
Accumulated amortization | 23,592 | 21,477
Intangible assets, net | 18,011 | 20,269
IPR&D |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Indefinite-lived intangible assets | 6,816 | 7,661
Product rights |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 23,643 | 23,555
Accumulated amortization | 17,765 | 16,745
Finite-lived intangible assets, net | 5,878 | 6,810
Trade names |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 2,881 | 2,879
Accumulated amortization | 776 | 635
Finite-lived intangible assets, net | 2,105 | 2,244
Licenses and other |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 8,263 | 7,651
Accumulated amortization | 5,051 | 4,097
Finite-lived intangible assets, net | $ 3,212 | $ 3,554

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