Supplemental Disclosure of Cash Flow Information - Additional Cash Flow Information (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Supplemental Cash Flow Elements [Abstract]
Interest paid	$ 64.2	$ 46.3
Income taxes paid, net of refunds	(5.3)	6.1
Capital lease obligations incurred	42.8
Long-term licensed assets with minimum royalty guarantees	$ 115	$ 26