Properties, Plants, and Equipment, Net

12 Months Ended

Dec. 31, 2024

Property, Plant and Equipment [Abstract]

Properties, Plants, and Equipment, Net

K. Properties, Plants, and Equipment, Net

December 31,	2024		2023
Land and land rights, including mines	$	233	$	257
Structures (by type of operation):
Bauxite mining and alumina refining		3,736		4,085
Aluminum smelting and casting		3,214		3,274
Energy generation		334		380
Other		344		357
		7,628		8,096
Machinery and equipment (by type of operation):
Bauxite mining and alumina refining		4,218		4,352
Aluminum smelting and casting		5,551		5,781
Energy generation		855		869
Other		453		457
		11,077		11,459
		18,938		19,812
Less: accumulated depreciation, depletion, and amortization		13,161		13,596
		5,777		6,216
Construction work-in-progress		612		569
	$	6,389	$	6,785