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Financing Arrangements and Derivative Financial Instruments - Notes (Details) - Senior Notes - USD ($)
1 Months Ended
May 31, 2017
Mar. 31, 2017
Sep. 30, 2017
Dec. 31, 2016
4.875% due 2027        
Debt Instrument [Line Items]        
Debt instrument, face amount   $ 700,000,000 $ 700,000,000  
Interest rate, stated percentage   4.875% 4.875%  
Notes sold as a percentage of principal amount   100.00%    
7% due 2022        
Debt Instrument [Line Items]        
Debt instrument, face amount $ 700,000,000      
Interest rate, stated percentage 7.00%     7.00%
Redemption premium $ 25,000,000      
Write-off of deferred financing fees $ 6,000,000