Statement of Consolidated Operations (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Sales	$ 1,393	$ 1,195	$ 2,717	$ 2,404
Cost of goods sold (exclusive of expenses below)	987	857	1,937	1,730
Selling, general administrative, and other expenses	83	55	152	120
Research and development expenses	9	4	16	9
Provision for depreciation and amortization	67	67	133	135
Restructuring and other charges	6	5	8	14
Operating income	241	207	471	396
Loss on debt redemption	2	23	2	23
Interest expense, net	57	66	115	138
Other (income) expense, net	(1)	8	0	12
Income before income taxes	183	110	354	223
Provision for income taxes	36	36	76	69
Net income	147	74	278	154
Amounts Attributable to Howmet Aerospace Common Shareholders:
Net income	147	74	277	153
Net income	$ 147	$ 74	$ 277	$ 153
Earnings per share:
Basic (in usd per share)	$ 0.35	$ 0.17	$ 0.66	$ 0.35
Diluted (in usd per share)	$ 0.35	$ 0.17	$ 0.66	$ 0.35
Average Shares Outstanding:
Basic (in shares)	417	432	418	433
Diluted (in shares)	422	437	423	438