Commitments and Contingencies Commitments Narrative (Details) (USD $)			12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Commitments to fund certain limited partnerships or subsidiaries [Member]
Loss Contingencies [Line Items]
Maximum potential funding under commitments	$ 98,000,000	$ 104,000,000	$ 34,000,000
Commitments funded			$ 15,000,000

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant