Income Taxes (Tables)

6 Months Ended

Jun. 30, 2015

Income Tax Disclosure [Abstract]

Schedule of effective income tax rate reconciliation

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

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015			2014
Tax on equity investments(1)	$	—	$	—		$	—		$	35.6
Restructuring	$	0.2	$	(25.1	)	$	(1.1	)	$	(55.9	)
Legal settlement	$	—	$	44.7		$	—		$	44.7

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⁽¹⁾ During the six months ended June 30, 2014, tax on equity investments of $35.6 million is net of a valuation allowance release of $24.7 million.