COMMITMENTS AND CONTINGENCIES (Narrative) (Details) In Millions, unless otherwise specified	12 Months Ended					0 Months Ended	12 Months Ended				36 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2014 Capital Addition Purchase Commitments [Member] USD ($)	Dec. 31, 2014 Wafer Purchase Commitment [Member] USD ($)	Sep. 06, 2013 Pending Litigation [Member] EUR (€)	Dec. 31, 2010 Rousset [Member] EUR (€)	Dec. 31, 2014 LFoundry Rousset S.A.S. [Member] Pending Litigation [Member] Plaintiffs	Dec. 31, 2014 Minimum [Member]	Dec. 31, 2014 Maximum [Member]	Jun. 01, 2013 LFoundry Rousset S.A.S. [Member] Rousset [Member] USD ($)
Long-term Purchase Commitment [Line Items]
Total rental expense	$ 27.3	$ 24.4	$ 25.0
Capital purchase commitment				4.3	41.9
Loss Contingency, Damages Sought						135
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							80
Payments to LRF for the past three years											$ 400
Loss Contingency, Number of Plaintiffs								500
Product Warranty Period									30 days	3 years