Properties, Plants, and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Schedule of Properties, Plants, and Equipment, Net

December 31,	2023		2022
Land and land rights, including mines	$	257	$	253
Structures (by type of operation):
Bauxite mining and alumina refining		4,085		3,515
Aluminum smelting and casting		3,274		3,265
Energy generation		380		354
Other		357		346
		8,096		7,480
Machinery and equipment (by type of operation):
Bauxite mining and alumina refining		4,352		4,227
Aluminum smelting and casting		5,781		5,813
Energy generation		869		851
Other		457		461
		11,459		11,352
		19,812		19,085
Less: accumulated depreciation, depletion, and amortization		13,596		13,112
		6,216		5,973
Construction work-in-progress		569		520
	$	6,785	$	6,493