Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares

The following is a reconciliation of basic shares to diluted shares:

	Three Months Ended September 30,		Nine Months Ended September 30,
(in millions)	2015	2014	2015	2014
Weighted-average shares - basic	169.6	170.9	170.9	170.2
Effect of dilutive securities	1.4	2.1	1.4	2.5
Weighted-average shares - diluted	171.0	173.0	172.3	172.7