Subsequent Events (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2014	Dec. 31, 2013
Subsequent Events [Abstract]
Purchase Price on Disposal of Business	$ 898
Gain (Loss) on Disposition of Business	400
Deposit on Disposal of Business		$ 90
Percent of Purchase Price for Deposit on Disposal of Business		10.00%

Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

No definition available.

Name:	us-gaap_GainLossOnSaleOfBusiness
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration