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Inventories
6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Inventories Inventories

Inventories as of June 30, 2019 and December 31, 2018 were as follows:

In millions
June 30, 2019
 
December 31, 2018
Raw material
$
466

 
$
523

Work-in-process
146

 
161

Finished goods
732

 
731

LIFO reserve
(88
)
 
(97
)
Total inventories
$
1,256

 
$
1,318