XML 24 R13.htm IDEA: XBRL DOCUMENT v3.19.2
Inventories
9 Months Ended
Jun. 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 are valued at the lower of cost or market using the last-in, first-out (“LIFO”) method.

The following summarizes Valvoline’s inventories as of:

(In millions)June 30
2019
September 30
2018
Finished products$210 $189 
Raw materials, supplies and work in process34 30 
Reserve for LIFO cost valuation(41)(40)
Excess and obsolete inventory reserves(3)(3)
Total inventories, net$200 $176