REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Total Revenues	$ 48,194	$ 48,300	$ 45,006
Net product sales
Disaggregation of Revenue [Line Items]
Total Revenues	46,756	46,778	43,778
Alliance revenues
Disaggregation of Revenue [Line Items]
Total Revenues	447	479	608
Other revenues
Disaggregation of Revenue [Line Items]
Total Revenues	$ 992	$ 1,043	$ 620

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