v2.4.1.9
Discontinued Operations Discontinued Operations (Operating Results) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Discontinued Operations and Disposal Groups [Abstract]      
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries $ 8us-gaap_CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries    
Disposal Group, Including Discontinued Operation, Revenue 0us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue 248us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue 557us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax 4us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax 6us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax (134)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest $ 3us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ 4us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax $ (87)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax