0000004281 2023-12-28 2023-12-28 0000004281 us-gaap:CommonStockMember hwm:NewYorkStockExchangeMember 2023-12-28 2023-12-28 0000004281 us-gaap:PreferredStockMember hwm:NYSEAmericanLLCMember 2023-12-28 2023-12-28 false 0000004281 8-K 2023-12-28 Howmet Aerospace Inc. DE 1-3610 25-0317820 201 Isabella Street Suite 200 Pittsburgh PA 15212-5872 412 553-1940 false false false false Common Stock, par value $1.00 per share HWM NYSE 3.75 Cumulative Preferred Stock, par value $100 per share HWM PR NYSEAMER false