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Inventories
12 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
Inventories are primarily carried at the lower of cost or net realizable value using the weighted average cost method. In addition, certain lubricants with a replacement cost of $107 million at September 30, 2019 and $89 million at September 30, 2018 are valued at the lower of cost or market using the LIFO method.

The following summarizes Valvoline’s inventories in the Consolidated Balance Sheets as of September 30:

(In millions)20192018
Finished products$203  $186  
Raw materials, supplies and work in process32  30  
Reserve for LIFO cost valuation(41) (40) 
Total inventories, net$194  $176