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Investing Activities Statutory deposits Narrative (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]    
Deposit securities fair value $ 2.4pnx_DepositSecuritiesFairValue $ 1.9pnx_DepositSecuritiesFairValue