Inventories (Tables)

12 Months Ended

Dec. 31, 2018

Inventory Disclosure [Abstract]

Components of Inventories

	December 31, 2018		December 31, 2017
Total productive material, supplies and work in process	$	4,274	$	4,203
Finished product, including service parts	5,542		6,460
Total inventories	$	9,816	$	10,663