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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2019 | Jan. 01, 2018
Property, Plant and Equipment |  |  |  |  |
Operating lease assets | $ 427.0 | $ 0.0 |  |  |
Operating lease liabilities | $ 486.3 |  |  |  |
Business (Textual) |  |  |  |  |
Interest in subsidiary (less than given percentage) | 100.00% |  |  |  |
Payment terms of accounts receivable arising from product sales | 30 to 90 days |  |  |  |
Estimated useful lives of leasehold improvements | Lesser of the useful life or the term of the respective lease |  |  |  |
Purchase price of common stock under ESPP | 85% of the lower of (i) the fair market value per share of the common stock on the first business day of an offering period and (ii) the fair market value per share of the common stock on the purchase date |  |  |  |
Compensation expense over purchase period | The fair value of the look-back provision plus the 15% discount |  |  |  |
Advertising costs | $ 79.2 | 90.2 | $ 75.2 |  |
Minimum | Building |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Property, plant and equipment, useful life | 15 years |  |  |  |
Minimum | Furniture and Fixtures |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Property, plant and equipment, useful life | 5 years |  |  |  |
Minimum | Machinery and Equipment |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Property, plant and equipment, useful life | 5 years |  |  |  |
Minimum | Computer Equipment |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Property, plant and equipment, useful life | 3 years |  |  |  |
Maximum | Building |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Property, plant and equipment, useful life | 40 years |  |  |  |
Maximum | Furniture and Fixtures |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Property, plant and equipment, useful life | 7 years |  |  |  |
Maximum | Machinery and Equipment |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Property, plant and equipment, useful life | 20 years |  |  |  |
Maximum | Computer Equipment |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Property, plant and equipment, useful life | 5 years |  |  |  |
Accounting Standards Update 2016-16 | Deferred Income Tax Charge |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Cumulative effect of new accounting principle in period of adoption |  |  |  |  | $ 500.0
Accounting Standards Update 2016-16 | Retained Earnings |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Cumulative effect of new accounting principle in period of adoption |  |  |  |  | $ 500.0
Accounting Standards Update 2016-16 | Deferred tax liability |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Cumulative effect of new accounting principle in period of adoption |  | $ 400.0 |  |  |
Accounting Standards Update 2016-02 |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Operating lease assets |  |  |  | $ 463.0 |
Operating lease liabilities |  |  |  | $ 526.0 |

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