v3.20.4
Inventories, net
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Inventories, net Inventories, net
Inventories are summarized as follows:
20202019
Raw materials66 52 
Work in process786 894 
Finished goods178 246 
1,030 1,192 
The portion of finished goods stored at customer locations under consignment amounted to $31 million as of December 31, 2020 (2019: $41 million).

The amounts recorded above are net of an allowance for obsolescence of $122 million as of December 31, 2020 (2019: $114 million).