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Inventories, Net (Tables)
12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consist of the following (in millions):
 
December 31,
 
2019
 
2018
Inventories at FIFO, net of reserves
$
875.6

 
$
866.1

Less: LIFO reserve
(204.7
)
 
(177.1
)
Total inventories, net of reserves
$
670.9

 
$
689.0