Equity - Common Stock Table (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Shares, Issued Beginning of Period	664,944,232	666,192,000
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures	151,000	(1,236,000)
Stock option exercises	14,000	259,000
Common Stock, Shares, Issued End of Period	665,109,487	665,215,000