Common Equity (Common Share Activity) (Details)	3 Months Ended
	Mar. 31, 2014
Common Stock Oustanding [Roll Forward]
Shares outstanding, January 1, 2014 (in shares)	110,943,669
Equity-based compensation plans (in shares)	37,049
Other (in shares)	(43,536)
Shares outstanding, March 31, 2014 (in shares)	110,937,182