OTHER CONSOLIDATED FINANCIAL STATEMENT DETAILS - Schedule of Inventory (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Inventories
Raw materials	$ 120.7	$ 120.7		$ 111.5
Work in process	164.4	164.4		144.8
Finished products	339.8	339.8		350.7
Total inventories	624.9	624.9		607.0
Finished products inventories held on consignment	128.6	128.6		$ 106.5
Inventory reserves	$ 46.2	$ 46.2	$ 0.0

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.

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The difference between the change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods and any LIFO decrement which have been reflected in the statement of income during the period.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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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.

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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.

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Gross amount of inventory owned by the entity but in the hands of a customer, typically a reseller.

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