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Inventories (Tables)
3 Months Ended
Mar. 31, 2021
Inventories  
Components of inventories

As of

As of

 

(in millions)

    

March 31, 2021

    

December 31, 2020

 

Finished and in process

 

$

573

 

$

584

Raw materials

 

283

 

236

Manufacturing supplies and other

 

94

 

97

Total inventories

 

$

950

 

$

917