Accounts Receivable, Net (Details) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Account Receivable Disclosure [Abstract]
Accounts Receivable	$ 844.7		$ 692.5
Provision for Discounts and Doubtful Accounts	26.9	21.4
Royalty Income Receivable	51.9		75.8
Provision for Discounts and Doubtful Accounts [Roll Forward]
Provision for Discounts and Doubtful Accounts, Beginning Balance	23.4	20.8
Provision for Discounts and Doubtful Accounts, Period Expense	172.5	130.8
Provision for Discounts and Doubtful Accounts, Utilization	(169.0)	(130.2)
Provision for Discounts and Doubtful Accounts, Ending Balance	$ 26.9	$ 21.4