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Inventories, Net
9 Months Ended
Sep. 30, 2021
Inventories, Net  
Inventories, Net

9.     Inventories, Net

September 30,

December 31,

($ in millions)

2021

    

2020

Raw materials and supplies

$

1,012

$

889

Work-in-process and finished goods

716

557

Less: Inventory reserves

(90)

(93)

$

1,638

$

1,353