REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue [Line Items]
Total Revenues	$ 11,489	$ 11,201
Net product sales
Disaggregation of Revenue [Line Items]
Total Revenues	11,168	10,886
Alliance revenues
Disaggregation of Revenue [Line Items]
Total Revenues	94	88
Other revenues
Disaggregation of Revenue [Line Items]
Total Revenues	$ 227	$ 227

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

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