REVENUE RECOGNITION Revenue by Nature (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 10,781	$ 5,920
Net product sales [Member]
Disaggregation of Revenue [Line Items]
Revenues	10,541	5,713
Other revenues [Member]
Disaggregation of Revenue [Line Items]
Revenues	135	78
Collaborative Arrangement [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,828	2,507
Collaborative Arrangement [Member] | Net product sales [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,723	2,378
Collaborative Arrangement [Member] | Collaborative Arrangement [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 105	$ 129