Derivative Financial Instruments Derivative Financial Instruments (Schedule of Cross Currency Swap Derivatives) (Details)
In Millions, unless otherwise specified
 9 Months Ended
Sep. 30, 2014
Swap Derivative 4 Point 27 Percent Maturing September 11, 2020 [Member]
USD ($)
Sep. 30, 2014
Swap Derivative 2 Point 63 Percent Maturing September 11, 2020 [Member]
EUR (€)
Sep. 30, 2014
Swap Derivative 3 Point 62 Percent Maturing April 17, 2019 [Member]
USD ($)
Sep. 30, 2014
Swap Derivative 2 Point 77 Percent Maturing April 17, 2019 [Member]
EUR (€)
Derivative [Line Items]        
Notional Value $ 250 [1] € 193 [2] $ 225 [1] € 162 [2]
Effective Date Sep. 11, 2014 Sep. 11, 2014 Apr. 17, 2014 Apr. 17, 2014
Expiration Date Sep. 11, 2020 Sep. 11, 2020 Apr. 17, 2019 Apr. 17, 2019
Fixed Rate 4.27% 2.63% 3.62% 2.77%
[1] Represents the notional amount due from the counterparty at the maturity of the contract.
[2] Represents the notional amount due to the counterparty at the maturity of the contract.