Equity Narratives (Details) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended							0 Months Ended	12 Months Ended	0 Months Ended		12 Months Ended							0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Convertible Series 2004-1 Preferred Stock [Member]		Dec. 31, 2013 Series O Preferred Stock [Member]		May 13, 2011 Mandatory Convertible Series 2008-I [Member]	Dec. 31, 2011 Mandatory Convertible Series 2008-I [Member]	Sep. 07, 2008 Series 2008-2 Senior Preferred Stock [Member]	Sep. 08, 2008 Series 2008-2 Senior Preferred Stock [Member]	Dec. 31, 2013 Series 2008-2 Senior Preferred Stock [Member]		Dec. 31, 2012 Series 2008-2 Senior Preferred Stock [Member]	Dec. 31, 2011 Series 2008-2 Senior Preferred Stock [Member]	Dec. 31, 2010 Series 2008-2 Senior Preferred Stock [Member]	Dec. 31, 2013 Minimum [Member] Series O Preferred Stock [Member]	Dec. 31, 2013 Maximum [Member] Series O Preferred Stock [Member]	May 13, 2011 Common Stock [Member]	Dec. 31, 2011 Common Stock [Member]	Dec. 31, 2013 US Treasury [Member]	Dec. 31, 2012 US Treasury [Member]	Sep. 07, 2008 US Treasury [Member]
Class of Stock [Line Items]
Common stock outstanding	1,158,080,657	1,158,080,657	1,158,080,657	1,158,077,970
Percentage of common shares attributable to warrants issued to Treasury as a percentage to total diluted common shares upon exercise of the right	79.90%	79.90%	79.90%																				79.90%		79.90%
Conversion price per share						$ 94.31
Conversion rate						1,060.3329
Preferred stock redemption price per share						$ 105,000													$ 50	$ 52.5
Shares of common stock issued upon conversion of convertible preferred stocks																					36,398,449	38,669,995
Preferred stock, annual dividend rate						5.375%	[1]	7.00%	[2]	8.75%	8.75%								7.00%
Shares of convertible preferred stock converted										20,018,947	21,493,217
Shares of variable liquidation preference senior preferred stock issued												1,000,000
Aggregate liquidation preference of senior preferred stock													$ 1,000,000,000										$ 117,100,000,000
Value assigned to Treasury's commitment and recorded as a reduction to additional paid-in-capital													4,500,000,000
Senior preferred stock liquidation preference per share													$ 1,000	$ 117,149	[3]
Capital Reserve Amount, current Year, Senior Preferred Stock Purchase Agreement, Amendment	3,000,000,000	3,000,000,000	3,000,000,000																				3,000,000,000
Aggregate funding received from US Treasury pursuant to the senior preferred stock purchase agreement	116,100,000,000	116,100,000,000	116,100,000,000																				116,100,000,000	116,100,000,000
Dividends declared on our senior preferred stock			82,452,000,000	11,608,000,000	9,613,000,000									82,500,000,000		11,608,000,000		9,613,000,000
Capital reserve amount for the next fiscal year based on the amended Senior Preferred Stock Purchase agreement	2,400,000,000	2,400,000,000	2,400,000,000																				2,400,000,000
Payment of cash dividends on senior preferred stock	8,600,000,000	8,600,000,000	82,452,000,000	11,608,000,000	9,613,000,000									82,500,000,000		11,608,000,000	9,613,000,000
Annual reduction of capital reserve from 2013 to 2018 based on the Senior Preferred Stock Purchase Agreement, Amendment	600,000,000	600,000,000	600,000,000																				600,000,000
Common stock warrant exercise price per share																									0.00001
Initial aggregate liquidation preference of senior preferred stock held by US Treasury																							1,000,000,000
Total remaining funding available from US Treasury pursuant to the senior preferred stock agreement																							117,600,000,000
Preferred Stock Covenant Maximum Fair Market Value of assets and properties per transaction														250,000,000
Preferred Stock, Covenant, Maximum Aggregate Debt Amount, Current Period														780,000,000,000
Preferred Stock, Covenant, Current Period Debt v.s. Maximum Mortgage Assets Allowed at Prior Year End, Maximum Ratio														120.00%
Preferred Stock, Covenant, Maximum Mortgage Assets														552,500,000,000.0
Preferred Stock, Covenant, Mortgage Assets at Year End, Maximum Ratio of Proceeding Year End														85.00%
Preferred Stock, Covenant, Mortgage Asset Floor Amount														250,000,000,000.0
Capital reserve amount on January 2018	$ 0	$ 0	$ 0

[1] Issued and outstanding shares were 24,922 as of December 31, 2013 and 2012, respectively.

[2] Rate effective December 31, 2013. Variable dividend rate resets quarterly thereafter at a per annum rate equal to the greater of 7.00% or 10-year CMT rate plus 2.375%.

[3] Initial stated value per share was $1,000. Based on our draws of funds under the senior preferred stock purchase agreement with Treasury, the stated value per share on December 31, 2013 was $117,149