Income Taxes (Tables)

6 Months Ended

Jun. 30, 2013

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The Company's effective tax rate for the three and six months ended June 30, 2013 was lower than the federal statutory rate of 35% and the effective tax rate for the same periods in 2012 primarily due to the following discrete items (in millions):



	Three Months Ended June 30, 2013		Six Months Ended June 30, 2013
Section 199 deduction	$	20.3	$	20.3
Tax settlement with Internal Revenue Service (“IRS”)	$	—	$	27.8
Reinstatement of the U.S. federal research and development (“R&D”) tax credit	$	—	$	15.2