Collaborations and Other Arrangements - Schedule of Collaborative Arrangements (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Revenue	$ 19,799	$ 12,729
Jardiance
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Revenue	$ 1,114	$ 1,014

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details