Income Taxes (Tables)

9 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Schedule of effective income tax rate reconciliation

The effective tax rates for the three and nine months ended September 30, 2015 and September 30, 2014 include the tax expense (benefit) of the following discrete items (in millions):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2015			2014		2015			2014
Cost-sharing adjustment(1)	$	(13.2	)	$	—	$	(13.2	)	$	—
Tax on equity investments(2)	$	—		$	0.7	$	—		$	36.3
Restructuring	$	—		$	9.2	$	—		$	(46.7	)
Legal settlement	$	—		$	—	$	—		$	44.7

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⁽¹⁾ Represents cumulative impact through fiscal year 2014 for the change in treatment of share-based compensation as a result of the U.S. Tax Court decision in Altera (see further explanation below). The total net benefit to the Condensed Consolidated Statements of Operations including the nine months ended September 30, 2015 was approximately $18.0 million.

⁽²⁾ During the nine months ended September 30, 2014, tax on equity investments of $36.3 million is net of a valuation allowance release of $24.7 million.