REVENUE RECOGNITION Revenue by Nature (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Total Revenues	$ 11,624	$ 10,540	$ 34,400	$ 31,450
Net product sales [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	11,243	10,197	33,446	30,555
Other revenues [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	187	159	459	443
Collaborative Arrangement [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	2,646	2,300	8,634	7,492
Collaborative Arrangement [Member] | Net product sales [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	2,452	2,116	8,139	7,040
Collaborative Arrangement [Member] | Collaborative Arrangement [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	$ 194	$ 184	$ 495	$ 452