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Employee Benefits (Details) (USD $)
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 4 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Pension
Sep. 30, 2013
Pension
Sep. 30, 2014
Pension
Sep. 30, 2013
Pension
Sep. 30, 2014
Qualified Pension Plan
Sep. 30, 2013
Qualified Pension Plan
Sep. 30, 2014
Qualified Pension Plan
Sep. 30, 2013
Qualified Pension Plan
Sep. 30, 2014
Non Qualified Pension Plan
plan
Sep. 30, 2014
Health Care and Life
Sep. 30, 2013
Health Care and Life
Sep. 30, 2014
Long-Term Disability Plan
Sep. 30, 2014
Long-Term Disability Plan
Sep. 30, 2014
General and Administrative Expense
Health Care and Life
Sep. 30, 2014
General and Administrative Expense
Long-Term Disability Plan
Sep. 30, 2014
General and Administrative Expense
Long-Term Disability Plan
Apr. 30, 2013
Super Media, Inc.
Defined Benefit Plan Disclosure [Line Items]                                          
Number of pension plans                         2                
Components of net periodic cost (income)                                          
Service cost         $ 1,000,000 $ 1,000,000 $ 1,000,000 $ 1,000,000                          
Interest cost         7,000,000 7,000,000 21,000,000 15,000,000                          
Expected return on plan assets         (10,000,000) (11,000,000) (28,000,000) (22,000,000)                          
Amortization of net loss         0 1,000,000 0 2,000,000                          
Settlement losses         0 0 1,000,000 0                          
Net periodic cost (income)         (2,000,000) (2,000,000) (5,000,000) (4,000,000)                          
Cash contributions                 3,000,000 1,000,000 6,000,000 3,000,000                  
Estimated employer contributions in current year                     7,000,000                    
Expense (credit) a result of plan amendments                           (13,000,000) 1,000,000 (29,000,000) (29,000,000) (13,000,000) (29,000,000) (29,000,000)  
Savings plan expenses $ 2,000,000 $ 3,000,000 $ 9,000,000 $ 9,000,000                                 $ 0