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Inventories, Net (Tables)
12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Components of Inventory
Inventories, net of reserves, by category were as follows:
 
Successor
 
 
Predecessor
 
December 31,
 
 
December 31,
(Dollars in millions)
2019
 
 
2018
Raw Materials, Components and Supplies
$
78

 
 
$
131

Work in Process
64

 
 
47

Finished Goods
830

 
 
847

 
$
972

 
 
$
1,025