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Inventories, Net (Tables)
3 Months Ended
Mar. 31, 2022
Inventories, Net  
Schedule of inventories

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​

​

​

March 31,

​

December 31,

($ in millions)

​

2022

    

2021

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​

​

​

​

​

​

Raw materials and supplies

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$

1,200

​

$

1,064

Work-in-process and finished goods

​

​

1,214

​

​

821

Less: Inventory reserves

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​

(91)

​

​

(90)

​

​

$

2,323

​

$

1,795