Fair Value Disclosures (Narrative) (Details) (Private Equity and Similar Investments)	6 Months Ended
Jun. 30, 2013 Yr Multiple
Private Equity and Similar Investments
Fair value inputs earnings before interest taxes depreciation and amortization multiple lower range	3
Fair value inputs earnings before interest taxes depreciation and amortization multiple upper range	10
Fair value inputs earnings before interest taxes depreciation and amortization multiple weighted average	7
Weighted average remaining life of private equity and similar investments	3

Market valuation shown as a multiple of earnings before interest, taxes, depreciation and amortization (EBITA), weighted average. This represents a significant unobservable input used to determine fair value.

No definition available.

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