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Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accounting Policies [Abstract]
Advertising costs	$ 85.8	$ 122.5	$ 93.3
Foreign currency exchange transaction gain (loss)	$ (3.5)	$ (2.1)	$ 1.7
Minimum
Goodwill and Intangible Assets
Estimated useful life of intangible assets	1 year
Maximum
Goodwill and Intangible Assets
Estimated useful life of intangible assets	20 years
Weighted Average
Goodwill and Intangible Assets
Estimated useful life of intangible assets	15 years 6 months
Buildings \| Minimum
Property, Plant and Equipment
Estimated useful life of PP&E	15 years
Buildings \| Maximum
Property, Plant and Equipment
Estimated useful life of PP&E	50 years
Office furniture, fittings and equipment \| Minimum
Property, Plant and Equipment
Estimated useful life of PP&E	3 years
Office furniture, fittings and equipment \| Maximum
Property, Plant and Equipment
Estimated useful life of PP&E	10 years
Warehouse, laboratory and manufacturing equipment \| Minimum
Property, Plant and Equipment
Estimated useful life of PP&E	3 years
Warehouse, laboratory and manufacturing equipment \| Maximum
Property, Plant and Equipment
Estimated useful life of PP&E	15 years

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

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