REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenues	$ 11,337	$ 11,648
Net product sales
Disaggregation of Revenue [Line Items]
Total revenues	11,048	11,308
Alliance revenues
Disaggregation of Revenue [Line Items]
Total revenues	144	188
Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ 145	$ 152