Shares and Stockholders' Equity (Changes In Preferred And Common stock (Number Of Shares)) (Details)	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Changes In Preferred And Common Stock Number Of Shares [Line Items]
Balance as of beginning-of-period					271,402,586
Balance as of end-of-period	262,342,363				262,342,363
Common stock as of end-of-period:
Assuming conversion of preferred stock	262,342,363		275,226,130		262,342,363		275,226,130
Diluted basis	272,503,337		282,361,186		272,503,337		282,361,186
Series A Preferred Stock [Member]
Changes In Preferred And Common Stock Number Of Shares [Line Items]
Balance as of beginning-of-period	4,164		9,632		9,532		10,072
Conversion of convertible preferred stock	(450)	[1]	(100)	[1]	(5,818)	[1]	(540)	[1]
Redemption of convertible preferred stock	(3,714)				(3,714)
Balance as of end-of-period			9,532				9,532
Common Stock [Member]
Changes In Preferred And Common Stock Number Of Shares [Line Items]
Conversion of convertible preferred stock	7,200	[1]	1,600	[1]	93,088	[1]	8,640	[1]
Balance as of beginning-of-period	264,316,340		279,168,971		271,402,586		291,319,222
Common Stock Issued For Exercise Of Warrants	220,107				220,318
Stock compensation/issued for benefit plans	112,398		60,238		636,356		394,633
Retirement/cancellation of shares	(2,313,682)		(4,157,191)		(10,009,985)		(16,648,877)
Balance as of end-of-period	262,342,363		275,073,618		262,342,363		275,073,618

[1] Represents the conversion of Series A preferred stock into common stock.