Inventories, Net - Schedule of Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Inventories at FIFO, net of reserves	$ 1,105.1	$ 993.9
Less: LIFO reserve	(257.2)	(235.4)
Total inventories, net of reserves	$ 847.9	$ 758.5

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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