Other Financial Information - Inventories (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Other Financial Information [Abstract]
Production and service materials	$ 158.1	$ 69.0
Finished goods	63.8	25.2
Schedule Of Inventory [Line Items]
Inventory	221.9	94.2
Prepaid expenses and other current assets
Schedule Of Inventory [Line Items]
Inventory	210.2	90.6
Other long-term assets
Schedule Of Inventory [Line Items]
Inventory	$ 11.7	$ 3.6

Other financial information.

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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

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