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Inventories
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories at December 31 consisted of:
 
2018
 
2017
Finished goods
$
1,658

 
$
1,334

Raw materials and work in process
5,004

 
4,703

Supplies
194

 
201

Total (approximates current cost)
6,856

 
6,238

Increase to LIFO costs
1

 
45

 
$
6,857

 
$
6,283

Recognized as:
 
 
 
Inventories
$
5,440

 
$
5,096

Other assets
1,417

 
1,187


Inventories valued under the LIFO method comprised approximately $2.5 billion and $2.2 billion at December 31, 2018 and 2017, respectively. Amounts recognized as Other assets are comprised almost entirely of raw materials and work in process inventories. At December 31, 2018 and 2017, these amounts included $1.4 billion and $1.1 billion, respectively, of inventories not expected to be sold within one year. In addition, these amounts included $7 million and $80 million at December 31, 2018 and 2017, respectively, of inventories produced in preparation for product launches.