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Inventories, net (Tables)
 9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Inventories

Inventories consist of (in millions):

 

 

 

September 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

Raw materials and supplies

 

$

676

 

 

$

614

 

Work in process

 

 

512

 

 

 

501

 

Finished goods and purchased products

 

 

2,396

 

 

 

2,505

 

 

 

 

3,584

 

 

 

3,620

 

Less: Inventory reserve

 

 

(1,047

)

 

 

(634

)

Total

 

$

2,537

 

 

$

2,986