Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Components of basic and diluted shares used in EPS

reconciliation of the components of basic and diluted shares used in the EPS calculation follows:

	Three Months Ended
	March 31,
	2014	2013
	(in millions)
Weighted-average basic common shares outstanding	179.7	177.0
Potential number of shares issuable upon exercise of in-the-money stock options under the Long-term Stock Incentive Plan	0.3	—
Average diluted common shares outstanding	180.0	177.0