RECEIVABLES (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Trade receivables	$ 7,882	$ 6,888
Less charge-backs and cash discounts	(645)	(391)
Less allowances	(18)	(21)
Net trade receivables	7,219	6,476
Alliance, Royalties, VAT and other	1,282	1,209
Receivables	8,501	7,685
Receivables sold on a nonrecourse basis	$ 1,200	$ 797	$ 756
The number of the largest pharmaceutical wholesalers in the U.S.	3
Customer Concentration Risk [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Percentage Of Aggregate Total Trade Receivables Due	56.00%	50.00%