Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2013

Equity [Abstract]

Common Stock Activity

Common stock activity is as follows:

	Three Months Ended March 31, 2013
Actual number of shares of common stock outstanding
Beginning of period		362,519,883
Shares of common stock converted from Mandatory Convertible Subordinated Bonds due February 2013		10,416,700
Shares of common stock issued through compensation plans		2,010,943
End of period		374,947,526