Amortization of Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 181.0	$ 178.2	$ 173.5
Amortization Expense 2013	179.0
Amortization Expense 2014	171.7
Amortization Expense 2015	163.9
Amortization Expense 2016	161.5
Amortization Expense 2017	$ 161.3