BUSINESS SEGMENT INFORMATION (Major Customers) (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Concentration Risk [Line Items]
The number of the largest pharmaceutical wholesalers in the U.S.	3
Customer Concentration Risk [Member] | McKesson Corporation [Member]
Concentration Risk [Line Items]
Gross sales to three largest pharmaceutical wholesalers in the U.S., percentage of total gross sales	24.00%	22.00%	21.00%
Customer Concentration Risk [Member] | Amerisourcebergen Corporation [Member]
Concentration Risk [Line Items]
Gross sales to three largest pharmaceutical wholesalers in the U.S., percentage of total gross sales	18.00%	18.00%	16.00%
Customer Concentration Risk [Member] | Cardinal Health, Inc. [Member]
Concentration Risk [Line Items]
Gross sales to three largest pharmaceutical wholesalers in the U.S., percentage of total gross sales	15.00%	14.00%	12.00%