Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2011

Earnings Per Share

Computation Of Weighted Average Shares Outstanding

		Three months ended June  30,				Six months ended June  30,
(in millions)	2011		2010		2011		2010
Weighted average shares outstanding:
Basic		88.6		89.2		88.8		89.2
Dilutive share-based awards (1)		0.5		0.8		0.5		—
Diluted		89.1		90.0		89.3		89.2

(1) The six months ended June 30, 2010 excludes 0.9 million potentially dilutive share-based awards as their effect would be anti-dilutive.