RESTRUCTURING - Schedule of Restructuring and Related Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Restructuring Cost and Reserve [Line Items]
Total charges	$ 131	$ 171	$ 409	$ 600
Employee termination costs	16	24	57	143
Other termination costs	1	3	3	7
Provision for restructuring	17	27	60	150
Integration expenses	114	141	343	434
Accelerated depreciation	0	0	6	0
Asset impairments	0	0	0	24
Other shutdown costs, net	0	3	0	(8)
Cost of products sold
Restructuring Cost and Reserve [Line Items]
Total charges	0	0	0	24
Marketing, selling and administrative
Restructuring Cost and Reserve [Line Items]
Total charges	0	1	6	1
Other (income)/expense, net
Restructuring Cost and Reserve [Line Items]
Total charges	131	170	403	575
Celgene Acquisition Plan
Restructuring Cost and Reserve [Line Items]
Total charges	102	153	375	526
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Total charges	$ 29	$ 18	$ 34	$ 74