Condensed Financial Statements - Dividends and Distributions (Details) (Parent [Member], USD $) In Millions, unless otherwise specified	12 Months Ended			2 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Feb. 28, 2014 Subsequent Event [Member]
Distribution [Line Items]
Proceeds from Dividends Received	$ 2,500	$ 1,100	$ 1,100	$ 254