Valuation and Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Allowance for Doubtful Accounts Receivable [Member]
Balance at Beginning of Period	$ 129.6		$ 134.3		$ 138.4
Charged to Costs and Expenses	192.5		239.3		250.9
Charged to Revenue	0		0		0
Deductions	(221.3)	[1]	(244.0)	[1]	(255.0)	[1]
Balance at End of Period	100.8		129.6		134.3
Allowance for Sales Returns [Member]
Balance at Beginning of Period	17.6		26.8		35.8
Charged to Costs and Expenses	0		0		0
Charged to Revenue	298.1		340.0		386.4
Deductions	(298.5)	[2]	(349.2)	[2]	(395.4)	[2]
Balance at End of Period	17.2		17.6		26.8
Allowance for Inventory Obsolescence [Member]
Balance at Beginning of Period	150.8		164.8		147.4
Charged to Costs and Expenses	100.9		117.1		118.8
Charged to Revenue	0		0		0
Deductions	(129.8)	[3]	(131.1)	[3]	(101.4)	[3]
Balance at End of Period	121.9		150.8		164.8
Deferred Tax Asset Valuation Allowance [Member]
Balance at Beginning of Period	783.4		627.4		546.1
Charged to Costs and Expenses	425.2	[4]	156.0	[4]	81.3	[4]
Charged to Revenue	0		0		0
Deductions	0		0		0
Balance at End of Period	$ 1,208.6		$ 783.4		$ 627.4

[1] Accounts written off, net of recoveries and foreign currency translation adjustment.

[2] Returned product destroyed and foreign currency translation adjustment.

[3] Obsolete inventory destroyed and foreign currency translation adjustment.

[4] Increase in valuation allowance primarily for deferred tax assets that are not more likely than not to be realized in the future.