Subsequent Events (Details) (Subsequent Event [Member], USD $) In Millions, except Per Share data, unless otherwise specified	Apr. 17, 2014
Series G Preferred Stock [Member]
Subsequent Event [Line Items]
Dividends Payable, Amount Per Share	$ 16.92
Dividends Payable	$ 44
Series A Preferred Stock [Member]
Subsequent Event [Line Items]
Dividends Payable, Amount Per Share	$ 0.53
Dividends Payable	$ 22