Inventories

9 Months Ended

Sep. 30, 2022

Inventory Disclosure [Abstract]

Inventories

4. Inventories

Inventory by major classification was as follows:

	September 30, 2022		December 31, 2021
Finished goods	$	756	$	747
Work in process	615		508
Raw materials	502		510
Materials and supplies	75		81
Total inventories	$	1,948	$	1,846

Beginning 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. During the nine months ended September 30, 2021, the Motorparts segment recognized a non-cash charge of $44 million to write-down inventory to its net realizable value, $1 million of impairment charge to write-down property, plant and equipment, and $3 million in restructuring charges related to cash severance benefits and other costs. Refer to Note 3, “Restructuring Charges, Net and Asset Impairments” for additional information.