Valuation and Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Allowance for Doubtful Accounts Receivable [Member]
Balance at Beginning of Period	$ 148.8		$ 132.4		$ 101.9
Charged to Costs and Expenses	247.2		215.7		221.2
Charged to Revenue	0		0		0
Deductions	257.6	[1]	199.3	[1]	190.7	[1]
Balance at End of Period	138.4		148.8		132.4
Allowance for Sales Returns [Member]
Balance at Beginning of Period	83.2		32.7		25.5
Charged to Costs and Expenses	0		0		0
Charged to Revenue	446.6		424.1		370.5
Deductions	493.7	[2]	373.6	[2]	363.3	[2]
Balance at End of Period	36.1		83.2		32.7
Allowance for Inventory Obsolescence [Member]
Balance at Beginning of Period	126.7		114.9		97.0
Charged to Costs and Expenses	128.1		131.1		120.0
Charged to Revenue	0		0		0
Deductions	103.2	[3]	119.3	[3]	102.1	[3]
Balance at End of Period	151.6		126.7		114.9
Deferred Tax Asset Valuation Allowance [Member]
Balance at Beginning of Period	462.7		370.2		269.4
Charged to Costs and Expenses	83.4	[4]	92.5	[4]	100.8	[4]
Charged to Revenue	0		0		0
Deductions	0		0		0
Balance at End of Period	$ 546.1		$ 462.7		$ 370.2

[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 for tax loss carryforward benefits that are not more likely than not to be realized in the future.