Capital Stock (Tables)

6 Months Ended

Jun. 30, 2012

Weighted Average Number of Shares Outstanding Reconciliation [Abstract]

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

		Three Months		Six Months
		Ended June 30,		Ended June 30,
(In millions)		2012	2011	2012	2011
Weighted-average shares:
	Basic (a)	48.5	47.8	48.3	47.7
	Effect of dilutive stock options and awards	0.1	0.3	0.2	0.3
	Diluted	48.6	48.1	48.5	48.0
Antidilutive stock options and awards excluded from denominator		2.6	1.5	2.6	2.2