Inventory (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Components of inventories
Raw materials	$ 331.3	$ 314.9
Work in process	634.8	544.5
Finished goods	205.7	209.2
Total inventory	$ 1,171.8	$ 1,068.6

Inventory, net current and noncurrent

No definition available.

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- Definition

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

+ References

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-Publisher FASB
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-Topic 330
-SubTopic 10
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- References

No definition available.

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- Definition

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section S99
-Paragraph 2
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- Definition

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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