Income Taxes (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Components of deferred tax assets and liabilities
Tax credits	$ 69.0	$ 64.1
Inventory, other reserves, and accruals	217.3us-gaap_DeferredTaxAssetsInventory	169.6us-gaap_DeferredTaxAssetsInventory
Intangibles, net	251.7	124.2
Net operating loss	20.6	14.7
Share-based compensation	86.0	85.0
Other	60.0us-gaap_DeferredTaxAssetsOther	84.8us-gaap_DeferredTaxAssetsOther
Valuation allowance	(11.5)	(1.5)
Total deferred tax assets	693.1us-gaap_DeferredTaxAssetsNet	540.9us-gaap_DeferredTaxAssetsNet
Purchased intangible assets	(432.8)	(550.8)
Unrealized gain on investments and cumulative translation adjustment	0	(3.2)
Inventory	(1.1)	(24.9)
Depreciation, amortization and other	(105.9)	(112.6)
Total deferred tax liabilities	$ 539.8us-gaap_DeferredTaxLiabilities	$ 691.5us-gaap_DeferredTaxLiabilities

Deferred tax liabilities depreciation amortization other.

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Deferred tax liabilities unrealized gain on investments and cumulative translation adjustment.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances.

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Amount of deferred tax consequences attributable to taxable temporary differences derived from inventory.

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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