Supplemental Disclosure of Cash Flow Information - Additional Cash Flow Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Supplemental Cash Flow Elements [Abstract]
Interest paid	$ 294.6	$ 64.2
Income tax refunds, net of payments	(4.1)	(5.3)
Noncash contribution expense	12.5	$ 115.0
Long-term licensed assets with minimum royalty guarantees	$ 42.8