RECEIVABLES (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Trade receivables	$ 6,888	$ 4,914
Less charge-backs and cash discounts	(391)	(245)
Less allowances	(21)	(33)
Net trade receivables	6,476	4,636
Alliance, Royalties, VAT and other	1,209	1,111
Receivables	7,685	5,747
Receivables sold on a nonrecourse basis	$ 797	$ 756	$ 637
The number of the largest pharmaceutical wholesalers in the U.S.	3
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Document Period End Date	Dec. 31, 2019
Customer Concentration Risk [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Percentage Of Aggregate Total Trade Receivables Due	50.00%	70.00%