Income Taxes (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Components of deferred tax assets and liabilities
Tax credits	$ 69.3	$ 60.0
Inventory, other reserves, and accruals	118.3	104.1
Capitalized costs	7.6	5.3
Intangibles, net	84.5	75.8
Net operating loss	37.5	22.9
Share-based compensation	58.6	54.7
Other	57.8	45.7
Valuation allowance	(12.3)	(10.8)
Total deferred tax assets	421.3	357.7
Purchased intangible assets	(411.3)	(384.8)
Unrealized gain on investments and cumulative translation adjustment	(1.2)	(3.5)
Inventory	(50.8)	(76.8)
Depreciation, amortization and other	(146.4)	(133.1)
Total deferred tax liabilities	$ 609.7	$ 598.2