Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares [Table Text Block]

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

	Three Months Ended June 30,		Six Months Ended June 30,
(in millions)	2013	2012	2013	2012
Weighted-average shares - basic	145.3	145.1	145.2	145.0
Effect of dilutive securities	1.4	0.7	1.3	0.8
Weighted-average shares - diluted	146.7	145.8	146.5	145.8