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Employee Benefits (Details) (USD $)
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 0 Months Ended 3 Months Ended 6 Months Ended 4 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Pension
Jun. 30, 2013
Pension
Jun. 30, 2014
Pension
Jun. 30, 2013
Pension
Jun. 30, 2014
Qualified Pension Plan
Jun. 30, 2013
Qualified Pension Plan
Jun. 30, 2014
Qualified Pension Plan
Jun. 30, 2013
Qualified Pension Plan
Jun. 30, 2014
Non Qualified Pension Plan
plan
Apr. 01, 2014
General and Administrative Expense
Health Care and Life
Jun. 30, 2013
General and Administrative Expense
Health Care and Life
Jun. 30, 2014
General and Administrative Expense
Health Care and Life
Jun. 30, 2013
General and Administrative Expense
Health Care and Life
Apr. 30, 2013
Super Media, Inc.
Defined Benefit Plan Disclosure [Line Items]                                    
Number of pension plans                         2          
Components of net periodic cost (income)                                    
Interest cost         $ 7,000,000 $ 6,000,000 $ 14,000,000 $ 8,000,000                    
Expected return on plan assets         (9,000,000) (8,000,000) (18,000,000) (11,000,000)                    
Amortization of net loss         0 0 0 1,000,000                    
Settlement losses         1,000,000 0 1,000,000 0                    
Net periodic cost (income)         (1,000,000) (2,000,000) (3,000,000) (2,000,000)                    
Cash contributions                 2,000,000 1,000,000 3,000,000 2,000,000            
Estimated employer contributions in current year                     10,000,000              
Credit to expense s a result of plan amendments                           13,000,000 (1,000,000) 13,000,000 (1,000,000)  
Savings plan expenses $ 3,000,000 $ 3,000,000 $ 7,000,000 $ 6,000,000                           $ 0