Statement of Consolidated Operations (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Sales	$ 1,603	$ 1,324
Cost of goods sold (exclusive of expenses below)	1,164	950
Selling, general administrative, and other expenses	75	69
Research and development expenses	9	7
Provision for depreciation and amortization	69	66
Restructuring and other charges	1	2
Operating income	285	230
Loss on debt redemption	1	0
Interest expense, net	57	58
Other expense, net	7	1
Income before income taxes	220	171
Provision for income taxes	72	40
Net income	148	131
Amounts Attributable to Howmet Aerospace Common Shareholders:
Net income	147	130
Net income	$ 147	$ 130
Earnings per share:
Basic (in usd per share)	$ 0.36	$ 0.31
Diluted (in usd per share)	$ 0.35	$ 0.31
Average Shares Outstanding:
Basic (in shares)	412	419
Diluted (in shares)	418	425