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INTANGIBLE ASSETS (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013
INTANGIBLE ASSETS
Amortization expense	$ 0	$ 0
Amortization period		15 years
Future recognition period of amortization expense which will be a reduction in revenue from collaborative arrangements		5 years

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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