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Merchandise Inventories
12 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Merchandise Inventories
Merchandise Inventories
At December 31, 2017 and 2016 we had inventory of $990.2 million and $916.3 million, of which $964.2 million and $902.2 million were valued under LIFO. If LIFO inventories had been valued on a current cost or FIFO basis, they would have been greater by $119.6 million and $115.4 million as of December 31, 2017 and 2016. At December 31, 2017 and 2016, included in our inventory was $22.1 million and $19.7 million in raw materials, $7.0 million and $10.8 million in work in process and the remainder was finished goods.