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Investing Activities Non-consolidated variable interest entities Narrative (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]    
Unfunded commitments related to VIEs $ 16.1pnx_UnfundedCommitmentsRelatedToVies $ 15.6pnx_UnfundedCommitmentsRelatedToVies