Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Shares Used In Calculation Of Earnings Per Share

EPS calculations have been made using the following share information (in millions):

	Three Months Ended March 31,
	2013	2012
Weighted average shares
Basic shares	120	121
Effect of dilutive securities	1	1
Diluted shares	121	122