Inventories

3 Months Ended

Mar. 31, 2022

Inventory Disclosure [Abstract]

Inventories

I. Inventories

	March 31, 2022		December 31, 2021
Finished goods	$	736	$	538
Work-in-process		195		85
Bauxite and alumina		588		539
Purchased raw materials		798		619
Operating supplies		178		175
	$	2,495	$	1,956