Derivative Financial Instruments Derivative Financial Instruments (Schedule of Cross Currency Swap Derivatives) (Details) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014 Swap Derivative 3 Point 62 Percent Maturing April 17, 2019 [Member] USD ($)	Jun. 30, 2014 Swap Derivative 2 Point 77 Percent Maturing April 17, 2019 [Member] EUR (€)
Derivative [Line Items]
Effective date	Apr. 17, 2014	Apr. 17, 2014
Expiration date	Apr. 17, 2019	Apr. 17, 2019
Fixed rate	3.62%	2.77%
Derivative, Notional Amount	$ 225	€ 162