Inventories

12 Months Ended

Dec. 31, 2020

Inventory Disclosure [Abstract]

Inventories

Inventories

At December 31, 2020 and 2019, inventory by major classification was as follows:

	December 31
	2020		2019
Finished goods	$	758	$	1,027
Work in process	449		460
Raw materials	441		408
Materials and supplies	95		104
Total inventories	$	1,743	$	1,999

In the second quarter of 2020, the Motorparts segment initiated a rationalization of its supply chain and distribution network to achieve supply chain efficiencies and improve throughput to its customers. As a result, it was determined certain assets, including inventory, would no longer be utilized. As such, during the year ended December 31, 2020, the Motorparts segment recognized an $82 million non-cash charge to write-down inventory to its net realizable value.