REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Total Revenues	$ 12,201	$ 11,226	$ 24,066	$ 22,563
Net product sales
Disaggregation of Revenue [Line Items]
Total Revenues	11,925	10,917	23,484	21,965
Alliance revenues
Disaggregation of Revenue [Line Items]
Total Revenues	116	179	250	323
Other revenues
Disaggregation of Revenue [Line Items]
Total Revenues	$ 160	$ 130	$ 332	$ 275