v2.4.1.9
Discontinued Operations Discontinued Operations (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]  
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries $ 8us-gaap_CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries
Remaining statutory capital from discontinued operation $ 80cnc_Remainingstatutorycapitalfromdiscontinuedoperation