10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)
☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended June 30, 2026

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number 1-3610

HOWMET AEROSPACE INC.

(Exact name of registrant as specified in its charter)

Delaware	25-0317820
(State of incorporation)	(I.R.S. Employer Identification No.)

201 Isabella Street, Suite 200, Pittsburgh, Pennsylvania 15212-5872

(Address of principal executive offices)      (Zip code)

Investor Relations 412-553-1950

Office of the Secretary 412-553-1940

(Registrant’s telephone numbers, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, par value $1.00 per share	HWM	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes  ✓    No     

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes  ✓    No      

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	x	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.     

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐    No  x

As of August 3, 2026, there were 398,801,399 shares of common stock, par value $1.00 per share, of the registrant outstanding.

TABLE OF CONTENTS 

		Page
Part I
Item 1.	Financial Statements and Supplementary Data	3
	Statement of Consolidated Operations for the Second Quarter and Six Months Ended June 30, 2026 and 2025	3
	Statement of Consolidated Comprehensive Income for the Second Quarter and Six Months Ended June 30, 2026 and 2025	4
	Consolidated Balance Sheet as of June 30, 2026 and December 31, 2025	5
	Statement of Consolidated Cash Flows for the Second Quarter and Six Months Ended June 30, 2026 and 2025	6
	Statement of Changes in Consolidated Equity for the Second Quarter Ended June 30, 2026 and 2025	7
	Statement of Changes in Consolidated Equity for the Six Months Ended June 30, 2026 and 2025	8
	Notes to the Consolidated Financial Statements	9
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	27
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	35
Item 4.	Controls and Procedures	35
Part II
Item 1.	Legal Proceedings	36
Item 1A.	Risk Factors	36
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	36
Item 6.	Exhibits	37
	Signatures	38

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements and Supplementary Data.

Howmet Aerospace Inc. and subsidiaries

Statement of Consolidated Operations (unaudited)

(in millions, except per-share amounts)

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Sales (D)	$	2,547	$	2,053	$	4,860	$	3,995
Cost of goods sold (exclusive of expenses below)	1,596		1,365		3,055		2,655
Selling, general administrative, and other expenses	148		89		259		174
Research and development expenses	8		9		17		17
Provision for depreciation and amortization	84		69		158		138
Restructuring and other credits (E)	—		—		(93)		(4)
Operating income	711		521		1,464		1,015
Interest expense, net	51		38		94		77
Other expense, net (G)	11		14		13		23
Income before income taxes	649		469		1,357		915
Provision for income taxes (H)	115		62		243		164
Net income	$	534	$	407	$	1,114	$	751
Amounts Attributable to Howmet Aerospace Common Shareholders (I):
Net income	$	534	$	407	$	1,114	$	750
Earnings per share:
Basic	$	1.33	$	1.01	$	2.78	$	1.85
Diluted	$	1.33	$	1.00	$	2.77	$	1.84
Average Shares Outstanding (I):
Basic	400		404		400		404
Diluted	402		406		402		407

The accompanying notes are an integral part of the consolidated financial statements.

3

Howmet Aerospace Inc. and subsidiaries

Statement of Consolidated Comprehensive Income (unaudited)

(in millions)

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Net income	$	534	$	407	$	1,114	$	751
Other comprehensive (loss) income, net of tax (J):
Change in unrecognized net actuarial loss and prior service cost related to pension and other postretirement benefits	4		3		8		6
Foreign currency translation adjustments	(10)		117		(42)		162
Net change in unrecognized (losses) gains on cash flow hedges	—		(39)		10		(39)
Total Other comprehensive (loss) income, net of tax	(6)		81		(24)		129
Comprehensive income	$	528	$	488	$	1,090	$	880

The accompanying notes are an integral part of the consolidated financial statements.

4

Howmet Aerospace Inc. and subsidiaries

Consolidated Balance Sheet (unaudited)

(in millions)

	June 30, 2026		December 31, 2025
Assets
Current assets:
Cash and cash equivalents	$	563	$	742
Receivables from customers, less allowances of $— in both 2026 and 2025 (K)	1,040		779
Inventories (L)	2,183		1,849
Prepaid expenses and other current assets	407		409
Total current assets	4,193		3,779
Properties, plants, and equipment, net (M)	2,817		2,593
Goodwill	5,084		4,022
Deferred income taxes	48		40
Intangibles, net	869		457
Other noncurrent assets (N)	240		288
Total assets	$	13,251	$	11,179
Liabilities
Current liabilities:
Accounts payable, trade (Q)	$	1,149	$	845
Accrued compensation and retirement costs	304		343
Taxes, including income taxes (H)	87		77
Accrued interest payable	62		47
Deferred revenue	119		147
Other current liabilities (N)(Q)	134		121
Long-term debt due within one year (O)	1		191
Short-term borrowings (O)	450		—
Total current liabilities	2,306		1,771
Long-term debt, less amount due within one year (O)(P)	4,050		2,859
Accrued pension benefits (F)	511		546
Accrued other postretirement benefits (F)	34		38
Other noncurrent liabilities and deferred credits (N)	618		612
Total liabilities	7,519		5,826
Contingencies and commitments (Q)
Equity
Howmet Aerospace shareholders’ equity:
Common stock	400		402
Additional capital	1,919		2,531
Retained earnings	5,110		4,093
Accumulated other comprehensive loss (J)	(1,697)		(1,673)
Total equity	5,732		5,353
Total liabilities and equity	$	13,251	$	11,179

The accompanying notes are an integral part of the consolidated financial statements.

5

Howmet Aerospace Inc. and subsidiaries

Statement of Consolidated Cash Flows (unaudited)

(in millions)

	Six months ended
	June 30,
	2026		2025
Operating activities
Net income	$	1,114	$	751
Adjustments to reconcile net income to cash provided from operations:
Depreciation and amortization	158		138
Deferred income taxes	9		12
Restructuring and other credits	(93)		(4)
Net realized and unrealized losses	8		11
Net periodic pension cost (F)	23		21
Stock-based compensation	57		39
Other	5		2
Changes in assets and liabilities, excluding effects of acquisitions, divestitures, and foreign currency translation adjustments:
Increase in receivables (K)	(196)		(170)
Increase in inventories (L)	(165)		(81)
(Increase) decrease in prepaid expenses and other current assets	(53)		6
Increase in accounts payable, trade	279		74
Decrease in accrued expenses	(59)		(47)
Decrease in taxes, including income taxes	(27)		(20)
Pension contributions	(21)		(15)
Increase in noncurrent assets	(7)		(2)
Increase (decrease) in noncurrent liabilities	4		(16)
Cash provided from operations	1,036		699
Financing Activities
Net change in commercial paper (O)	450		—
Additions to debt (O)	1,200		—
Repurchases and payments on debt (O)	(186)		(77)
Debt issuance costs (O)	(12)		—
Repurchases of common stock	(600)		(300)
Dividends paid to shareholders	(97)		(83)
Taxes paid for net share settlement of equity awards	(65)		(44)
Other	(5)		(2)
Cash provided from (used for) financing activities	685		(506)
Investing Activities
Capital expenditures (D)	(198)		(221)
Acquisitions, net of cash acquired (C)	(1,929)		—
Proceeds from the sale of assets and businesses (C)	225		8
Other	2		1
Cash used for investing activities	(1,900)		(212)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	—		—
Net change in cash, cash equivalents and restricted cash	(179)		(19)
Cash, cash equivalents and restricted cash at beginning of period	743		565
Cash, cash equivalents and restricted cash at end of period	$	564	$	546

    

The accompanying notes are an integral part of the consolidated financial statements.

6

Howmet Aerospace Inc. and subsidiaries

Statement of Changes in Consolidated Equity (unaudited)

(in millions, except per-share amounts)

	Preferred stock		Common stock		Additional capital		Retained earnings		Accumulated other comprehensive loss		Total Equity
Balance at March 31, 2025	$	55	$	404	$	3,095	$	3,068	$	(1,830)	$	4,792
Net income	—		—		—		407		—		407
Other comprehensive income (J)	—		—		—		—		81		81
Cash dividends declared:
Preferred-Class A @ $0.9375 per share (I)	—		—		—		—		—		—
Common @ $0.10 per share	—		—		—		(41)		—		(41)
Repurchase and retirement of common stock (I)	—		(1)		(175)		—		—		(176)
Stock-based compensation	—		—		25		—		—		25
Common stock issued: compensation plans	—		1		(47)		—		—		(46)
Balance at June 30, 2025	$	55	$	404	$	2,898	$	3,434	$	(1,749)	$	5,042

	Preferred stock		Common stock		Additional capital		Retained earnings		Accumulated other comprehensive loss		Total Equity
Balance at March 31, 2026	$	—	$	401	$	2,187	$	4,625	$	(1,691)	$	5,522
Net income	—		—		—		534		—		534
Other comprehensive loss (J)	—		—		—		—		(6)		(6)
Cash dividends declared:
Common @ $0.12 per share	—		—		—		(49)		—		(49)
Repurchase and retirement of common stock (I)	—		(1)		(302)		—		—		(303)
Stock-based compensation	—		—		36		—		—		36
Common stock issued: compensation plans	—		—		(2)		—		—		(2)
Balance at June 30, 2026	$	—	$	400	$	1,919	$	5,110	$	(1,697)	$	5,732

The accompanying notes are an integral part of the consolidated financial statements.

7

Howmet Aerospace Inc. and subsidiaries

Statement of Changes in Consolidated Equity (unaudited)

(U.S. dollars in millions, except per-share amounts)

	Preferred stock		Common stock		Additional capital		Retained earnings		Accumulated other comprehensive loss		Total Equity
Balance at December 31, 2024	$	55	$	405	$	3,206	$	2,766	$	(1,878)	$	4,554
Net income	—		—		—		751		—		751
Other comprehensive income (J)	—		—		—		—		129		129
Cash dividends declared:
Preferred-Class A @ $1.8750 per share (I)	—		—		—		(1)		—		(1)
Common @ $0.20 per share	—		—		—		(82)		—		(82)
Repurchase and retirement of common stock (I)	—		(2)		(300)		—		—		(302)
Stock-based compensation	—		—		39		—		—		39
Common stock issued: compensation plans	—		1		(47)		—		—		(46)
Balance at June 30, 2025	$	55	$	404	$	2,898	$	3,434	$	(1,749)	$	5,042

 

	Preferred stock		Common stock		Additional capital		Retained earnings		Accumulated other comprehensive loss		Total Equity
Balance at December 31, 2025	$	—	$	402	$	2,531	$	4,093	$	(1,673)	$	5,353
Net income	—		—		—		1,114		—		1,114
Other comprehensive loss (J)	—		—		—		—		(24)		(24)
Cash dividends declared:
Common @ $0.24 per share	—		—		—		(97)		—		(97)
Repurchase and retirement of common stock (I)	—		(2)		(603)		—		—		(605)
Stock-based compensation	—		—		57		—		—		57
Common stock issued: compensation plans	—		—		(66)		—		—		(66)
Balance at June 30, 2026	$	—	$	400	$	1,919	$	5,110	$	(1,697)	$	5,732

The accompanying notes are an integral part of the consolidated financial statements.

8

Howmet Aerospace Inc. and subsidiaries

Notes to the Consolidated Financial Statements (unaudited)

(U.S. dollars in millions, except share and per-share amounts)

A. Basis of Presentation

The interim Consolidated Financial Statements of Howmet Aerospace Inc. and its subsidiaries (“Howmet” or the “Company” or “we” or “our”) are unaudited. These Consolidated Financial Statements include all adjustments, consisting only of normal recurring adjustments, considered necessary by management to fairly state the Company’s results of operations, financial position, and cash flows. The results reported in these Consolidated Financial Statements are not necessarily indicative of the results that may be expected for the entire year. The 2025 year-end balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America (“GAAP”). This Form 10-Q report should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2025 (the “Form 10-K”), which includes all disclosures required by GAAP, and with Exhibit 99.1 to the Company’s Current Report on Form 8-K dated May 28, 2026, which provides recast historical segment information. Certain amounts in previously issued financial statements were reclassified to conform to the current period presentation.

In the six months ended June 30, 2026, the Company derived approximately 68% of its revenue from products sold to the commercial and defense aerospace markets. The timing and level of future aircraft builds by original equipment manufacturers (“OEMs”) are subject to changes and uncertainties, including but not limited to geopolitical tensions or volatility in global energy and raw material markets, which may cause our future results to differ from prior periods due to changes in product mix in certain segments.

The timing, extent, application, and level of tariffs by various governments and our ability to recover tariffs are subject to changes and uncertainties in all segments. While the tariff situation remains fluid, we expect to pass along the costs associated with tariffs to our customers in the form of a cost pass through mechanism. There may be a delay between an increase in our costs and our ability to recover the higher costs that could impact our margins.

The preparation of the Consolidated Financial Statements of the Company in conformity with GAAP requires management to make certain judgments, estimates, and assumptions. These estimates are based on historical experience and, in some cases, assumptions based on current and future market expectations, including considerations relating to changes in the aerospace industry. The impact of these changes, including the macroeconomic considerations, remains highly uncertain. Management has made its best estimates using all relevant information available at the time, but it is possible that our estimates will differ from our actual results and affect the Consolidated Financial Statements in future periods and potentially require adverse adjustments to the recoverability of goodwill, intangible and long-lived assets, the realizability of deferred tax assets and other judgments and estimations and assumptions.

B. Recently Issued Accounting Guidance

Issued

In May 2026, the Financial Accounting Standards Board (“FASB”) issued guidance to improve the financial accounting for and disclosure of environmental credits and environmental credit obligations. These changes become effective for fiscal years beginning after December 15, 2027 for interim and annual reporting periods. Management is currently evaluating the impact of these changes on the Consolidated Financial Statements.

In September 2025, the FASB issued guidance to simplify the requirements for the capitalization of costs surrounding internally-developed software. These changes become effective for fiscal years beginning after December 15, 2027 for interim and annual reporting periods. Management is currently evaluating the impact of these changes on the Consolidated Financial Statements.

In November 2024, the FASB issued guidance to improve disclosures about an entity’s expenses including more detailed information about the components of expenses in commonly presented expense captions. These changes become effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Management is currently evaluating the impact of these changes on the Consolidated Financial Statements.

9

C. Acquisitions and Divestitures

Acquisitions

On April 6, 2026, Howmet completed its previously announced stock purchase of Consolidated Aerospace Manufacturing, LLC (“Consolidated Aerospace Manufacturing” or “CAM”), a wholly-owned subsidiary of Stanley Black & Decker, Inc. (“Stanley Black & Decker”), for a cash purchase price of approximately $1,812, net of cash and cash equivalents acquired of $1, subject to customary adjustments (the “CAM Acquisition”). CAM is a global aerospace manufacturer focused on highly-engineered, mission-critical parts used in aerospace markets, such as fasteners, fluid fittings and connectors, and other engineered products. This acquisition expands Howmet’s aerospace fastening systems portfolio and increases exposure to key aircraft and defense programs. Howmet financed the CAM Acquisition through utilizing a variety of financing sources, which include the notes issued in March 2026, borrowings under its commercial paper program (See Note O), and cash on hand. A portion of the goodwill relating to this transaction will be deductible for income tax purposes.

On February 6, 2026, the Company acquired all of the stock of Brunner Manufacturing Co. Inc. (“Brunner”), a privately-held manufacturer of high-quality fastener products in Wisconsin, for an all-cash purchase price of approximately $120, net of cash and cash equivalents acquired of $2.

The Company’s preliminary allocation of the purchase price for both the CAM and Brunner acquisitions, based upon the estimated fair value of assets acquired and liabilities assumed, is as follows:

Assets Acquired
Receivables from customers	$	83
Inventories	181
Properties, plants, and equipment	204
Other noncurrent assets	41
Intangible assets	425
Total Assets Acquired	934
Liabilities Assumed
Accounts payable, trade	$	40
Accrued compensation and retirement costs	14
Other current liabilities	10
Other noncurrent liabilities	23
Total Liabilities Assumed	87
Net Assets Acquired	$	847
Goodwill	$	1,082

The final allocations of purchase price will be based on management’s best estimates. Valuations of the assets acquired, other studies related to potential environmental and contingent liabilities, and other liabilities assumed may result in the identification of other intangible assets or liabilities. The valuations are expected to be completed by the end of 2026. The CAM and Brunner acquisitions have been included in the operations of the Fastening Systems segment, with revenue primarily included within Aerospace - Commercial, Aerospace - Defense, and Other in end-market revenue (See Note D). The aforementioned acquisitions’ combined third-party sales were approximately 2% of the Company’s consolidated sales and approximately 1% of consolidated net income from the respective acquisition dates through June 30, 2026.

Divestitures

On March 31, 2026, the Company completed the sale of its disk forging facility in Savannah, Georgia for $230 (of which approximately $225 was received in the first quarter of 2026, with the remainder expected in the fourth quarter of 2026). This resulted in a gain of $93 in the first quarter of 2026 that was recorded in Restructuring and other credits in the Statement of Consolidated Operations. This business had net assets of approximately $92, and the sale resulted in a reduction of goodwill in the Engineered Structures reporting unit of approximately $41. The sale remains subject to certain post-closing adjustments. This business was reclassified to assets and liabilities of operations held for sale, primarily included in Prepaid expenses and other current assets in the fourth quarter of 2025 and generated sales of approximately $130 for the year ended December 31, 2025 and had approximately 160 employees at the time of divestiture.

10

D. Segment Information

Howmet is a global leader in lightweight metals engineering and manufacturing. Howmet’s innovative, multi-material products, which include nickel, titanium, aluminum, and cobalt, are used worldwide in the aerospace (commercial and defense), commercial transportation, gas turbines, and other markets. Segment performance under Howmet’s management reporting system is evaluated based on Segment Adjusted EBITDA. The Company’s Chief Executive Officer, who has been determined to be our Chief Operating Decision Maker (“CODM”), believes that Segment Adjusted EBITDA provides information with respect to the Company’s operating performance and the Company’s ability to meet its financial obligations. Howmet’s definition of Segment Adjusted EBITDA is defined as Operating Income excluding Restructuring and other credits, Provision for depreciation and amortization, and Special items. Special items, including Restructuring and other credits, are excluded from Segment Adjusted EBITDA. The Company’s CODM considers forecast-to-actual variances for Segment Adjusted EBITDA when allocating resources across the Company’s reportable segments. Segment Adjusted EBITDA may not be comparable to similarly titled measures of other companies. Differences between the total segment and consolidated totals are in Corporate.

In the first quarter of 2026, the Company’s CODM reorganized Howmet’s segments by moving a titanium alloy location from Engine Products to Engineered Structures as it better aligns with the operations of the Engineered Structures segment. The comparable periods of Engine Products and Engineered Structures have been recast to reflect the new alignment. The recasting had no impact on the Company’s consolidated results, financial position or cash flows.

Howmet’s operations consist of four worldwide reportable segments as follows:

Engine Products

Engine Products produces investment castings, including airfoils, and seamless rolled rings primarily for aircraft engines and gas turbine applications. Engine Products produces rotating parts, as well as structural parts.

Fastening Systems

Fastening Systems produces aerospace fastening systems, as well as commercial transportation, industrial, and other fasteners. The business’s high-tech, multi-material fastening systems are found nose to tail on aircraft and aero engines. Fastening Systems’ products are also critical components of commercial transportation vehicles and construction, industrial, and renewable energy equipment.

Engineered Structures

Engineered Structures produces titanium ingots and mill products for aerospace and defense applications and is vertically integrated to produce titanium forgings, titanium extrusions, and machining services for airframe, wing, aero-engine, and landing gear components. Engineered Structures also produces aluminum forgings and aluminum machined components and assemblies for aerospace and defense applications.

Forged Wheels

Forged Wheels provides forged aluminum wheels and related products for heavy-duty trucks and the commercial transportation market.

11

The operating results of the Company’s reportable segments were as follows:

	Engine Products		Fastening Systems		Engineered Structures		Forged Wheels		Total Segment
Second quarter ended June 30, 2026
Sales:
Third-party sales	$	1,373	$	589	$	269	$	316	$	2,547
Inter-segment sales	3		—		8		—		11
Total sales	$	1,376	$	589	$	277	$	316	$	2,558
Expenses:
Segment Adjusted cost of goods sold(1)	$	831	$	373	$	204	$	216	$	1,624
Other segment items(2)	28		39		9		12		88
Profit and loss:
Segment Adjusted EBITDA	$	517	$	177	$	64	$	88	$	846
Provision for depreciation and amortization	42		20		11		10		83
Other:
Capital expenditures	$	77	$	11	$	8	$	4	$	100
Second quarter ended June 30, 2025
Sales:
Third-party sales	$	1,038	$	431	$	308	$	276	$	2,053
Inter-segment sales	3		—		8		—		11
Total sales	$	1,041	$	431	$	316	$	276	$	2,064
Expenses:
Segment Adjusted cost of goods sold(1)	$	671	$	276	$	239	$	189	$	1,375
Other segment items(2)	27		29		9		11		76
Profit and loss:
Segment Adjusted EBITDA	$	343	$	126	$	68	$	76	$	613
Provision for depreciation and amortization	35		12		10		10		67
Restructuring and other charges (credits)	—		1		—		(1)		—
Other:
Capital expenditures	$	74	$	9	$	7	$	8	$	98
	Engine Products		Fastening Systems		Engineered Structures		Forged Wheels		Total Segment
Six months ended June 30, 2026
Sales:
Third-party sales	$	2,626	$	1,060	$	563	$	611	$	4,860
Inter-segment sales	5		—		16		—		21
Total sales	$	2,631	$	1,060	$	579	$	611	$	4,881
Expenses:
Segment Adjusted cost of goods sold(1)	$	1,596	$	662	$	430	$	411	$	3,099
Other segment items(2)	60		71		19		22		172
Profit and loss:
Segment Adjusted EBITDA	$	975	$	327	$	130	$	178	$	1,610
Provision for depreciation and amortization	80		33		21		21		155
Restructuring and other credits	—		—		(93)		—		(93)
Other:
Capital expenditures	$	136	$	28	$	20	$	7	$	191
Total assets	5,777		4,756		1,277		785		12,595

12

Six months ended June 30, 2025
Sales:
Third-party sales	$	2,012	$	843	$	612	$	528	$	3,995
Inter-segment sales	5		—		15		—		20
Total sales	$	2,017	$	843	$	627	$	528	$	4,015
Expenses:
Segment Adjusted cost of goods sold(1)	$	1,304	$	532	$	475	$	363	$	2,674
Other segment items(2)	52		58		17		21		148
Profit and loss:
Segment Adjusted EBITDA	$	661	$	253	$	135	$	144	$	1,193
Provision for depreciation and amortization	68		24		23		20		135
Restructuring and other charges (credits)	—		1		(4)		(1)		(4)
Other:
Capital expenditures	$	159	$	19	$	13	$	23	$	214
Total assets	5,512		2,787		1,374		748		$	10,421

(1)Segment Adjusted cost of goods sold is exclusive of Provision for depreciation and amortization, Restructuring and other credits, and Corporate expenses.

(2)Other segment items includes Selling, general administrative, and other expenses, and Research and development expenses; exclusive of Provision for depreciation and amortization, and Restructuring and credits.

The following table reconciles Total Segment Adjusted EBITDA to Income before income taxes. Differences between the total segment and consolidated totals are in Corporate.

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Total Segment Adjusted EBITDA	$	846	$	613	$	1,610	$	1,193
Segment provision for depreciation and amortization	(83)		(67)		(155)		(135)
Unallocated amounts:
Restructuring and other credits	—		—		93		4
Corporate expense(1)	(52)		(25)		(84)		(47)
Operating income	$	711	$	521	$	1,464	$	1,015
Interest expense, net	(51)		(38)		(94)		(77)
Other expense, net	(11)		(14)		(13)		(23)
Income before income taxes	$	649	$	469	$	1,357	$	915

(1)    Corporate expense includes selling, general administrative and other expenses, costs of corporate headquarters, acquisition and acquisition-related costs, costs associated with closures, supply chain disruptions, and other items.

The following table reconciles total segment capital expenditures with Capital expenditures as presented in the Statement of Consolidated Cash Flows.

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Total segment capital expenditures	$	100	$	98	$	191	$	214
Corporate	4		4		7		7
Capital expenditures	$	104	$	102	$	198	$	221

13

The following table disaggregates segment revenue by major market served. Differences between the total segment and consolidated totals are in Corporate.

	Engine Products		Fastening Systems		Engineered Structures		Forged Wheels		Total Segment
Second quarter ended June 30, 2026
Aerospace - Commercial	$	770	$	412	$	177	$	—	$	1,359
Aerospace - Defense	250		64		75		—		389
Commercial Transportation	—		56		—		316		372
Gas Turbines	321		—		—		—		321
Other	32		57		17		—		106
Total end-market revenue	$	1,373	$	589	$	269	$	316	$	2,547
Second quarter ended June 30, 2025
Aerospace - Commercial	$	562	$	297	$	201	$	—	$	1,060
Aerospace - Defense	214		44		94		—		352
Commercial Transportation	—		56		—		276		332
Gas Turbines	233		—		—		—		233
Other	29		34		13		—		76
Total end-market revenue	$	1,038	$	431	$	308	$	276	$	2,053
Six months ended June 30, 2026
Aerospace - Commercial	$	1,472	$	734	$	368	$	—	$	2,574
Aerospace - Defense	488		115		152		—		755
Commercial Transportation	—		107		—		611		718
Gas Turbines	605		—		—		—		605
Other	61		104		43		—		208
Total end-market revenue	$	2,626	$	1,060	$	563	$	611	$	4,860
Six months ended June 30, 2025
Aerospace - Commercial	$	1,097	$	572	$	407	$	—	$	2,076
Aerospace - Defense	425		86		174		—		685
Commercial Transportation	—		109		—		528		637
Gas Turbines	437		—		—		—		437
Other	53		76		31		—		160
Total end-market revenue	$	2,012	$	843	$	612	$	528	$	3,995

The Company derived 68% and 69% of its revenue from the aerospace (commercial and defense) markets for the six months ended June 30, 2026 and 2025, respectively.

GE Aerospace and RTX Corporation represented approximately 14% and 10%, respectively, of the Company’s third-party sales in the six months ended June 30, 2026. RTX Corporation and GE Aerospace represented approximately 11% and 10%, respectively, of the Company’s third-party sales in the six months ended June 30, 2025. These sales were primarily from the Engine Products segment.

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E. Restructuring and Other Credits

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Layoff costs	$	—	$	3	$	—	$	3
Reversals of previously recorded layoff reserves	—		(1)		—		(2)
Net gains related to divestitures of assets and businesses (C)	—		(2)		(93)		(5)
Total restructuring and other credits	$	—	$	—	$	(93)	$	(4)

In the second quarter of 2026, the Company recorded Restructuring and other charges of less than $1.

In the six months ended June 30, 2026, the Company recorded Restructuring and other credits of $93, which were primarily due to a gain on the sale of its disk forging facility in Savannah, Georgia within Engineered Structures of $93 in the first quarter of 2026.

In the second quarter of 2025, the Company recorded Restructuring and other charges of less than $1, which were primarily due to a charge for layoff costs of $3, including the separation of 119 employees (79 in Fastening Systems and 40 in Forged Wheels), partially offset by a gain on the sale of assets at a previously closed facility in Forged Wheels of $2 and a reversal of $1 for layoff reserves related to a prior period.

In the six months ended June 30, 2025, the Company recorded Restructuring and other credits of $4, which were primarily due to a gain on the sale of assets at a small U.K. manufacturing facility in Engineered Structures of $3, a gain on the sale of assets at a previously closed facility in Forged Wheels of $2, and a reversal of $2 for layoff reserves related to a prior period, partially offset by a charge for layoff costs of $3.

	Layoff costs		Other exit costs		Total
Reserve balances at December 31, 2025	$	1	$	—	$	1
Restructuring credits	—		(93)		(93)
Other(1)	—		93		93
Reserve balances at June 30, 2026	$	1	$	—	$	1

(1)In the six months ended June 30, 2026, other for other exit costs were primarily due to a gain on the sale of the disk forging facility in Savannah, Georgia within Engineered Structures of $93.

The remaining reserves as of June 30, 2026 are expected to be paid in cash in 2026 and 2027.

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F. Retirement and Other Postretirement Benefits

The components of net periodic cost (benefit) were as follows:

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Pension benefits
Service cost	$	1	$	—	$	1	$	1
Interest cost	15		19		31		38
Expected return on plan assets	(13)		(16)		(27)		(33)
Recognized net actuarial loss	9		8		18		15
Net periodic cost(1)	$	12	$	11	$	23	$	21
Other postretirement benefits
Service cost	$	—	$	—	$	—	$	—
Interest cost	—		1		1		2
Recognized net actuarial gain	(2)		(2)		(4)		(4)
Amortization of prior service benefit	(2)		(3)		(4)		(5)
Net periodic benefit(1)	$	(4)	$	(4)	$	(7)	$	(7)

(1)Service cost was included within Cost of goods sold; all other cost components were recorded in Other expense, net in the Statement of Consolidated Operations.

For the second quarter and six months ended June 30, 2026, Howmet’s combined pension contributions and other postretirement benefit payments were approximately $24 and $27, respectively. For the second quarter and six months ended June 30, 2025, Howmet’s combined pension contributions and other postretirement benefit payments were approximately $18 and $19, respectively.

G. Other Expense, Net

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Non-service costs - pension and other postretirement benefits (F)	$	7	$	7	$	15	$	13
Interest income	(7)		(4)		(17)		(8)
Foreign currency losses (gains), net	1		(3)		2		(3)
Net realized and unrealized losses	4		6		8		11
Deferred compensation	7		8		6		10
Other, net	(1)		—		(1)		—
Total other expense, net	$	11	$	14	$	13	$	23

H. Income Taxes

The Company’s year-to-date tax provision is comprised of the most recent estimated annual effective tax rate applied to year-to-date, pre-tax ordinary income. The tax impacts of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are recorded discretely in the interim period in which they occur. In addition, the tax provision is adjusted for the interim period impact of non-benefited, pre-tax losses.

The estimated annual effective tax rate, before discrete items, applied to ordinary income was 20.9% in the second quarter and six months ended June 30, 2026, and 20.8% in the second quarter and six months ended June 30, 2025.

16

The 2026 rate was lower than the U.S. federal statutory rate of 21% primarily due to a U.S. deduction on Foreign-Derived Deduction Eligible Income (“FDDEI”) formerly known as Foreign-Derived Intangible Income (“FDII”), and a net benefit related to U.S. federal and state research and development (“R&D”) credits, partially offset by incremental state income tax, nondeductible expenses, and foreign earnings subject to tax in jurisdictions with tax rates higher than the U.S. federal statutory rate of 21%. The 2025 rate was lower than the U.S. federal statutory rate of 21% primarily due to a U.S. deduction on FDII, a net benefit related to U.S. federal and state R&D credits, and a U.S. tax benefit recognized for foreign tax credits, partially offset by incremental state income tax, additional U.S. tax on Global Intangible Low-Taxed Income (“GILTI”) and other foreign earnings, nondeductible expenses, and foreign earnings subject to tax in jurisdictions with tax rates higher than the U.S. federal statutory rate of 21%. The 2026 rate is consistent with the 2025 rate.

For the second quarter of 2026 and 2025, the tax rate including discrete items was 17.7% and 13.2%, respectively. In the second quarter of 2026, the Company recorded a discrete net tax benefit of $20 attributable to a benefit to release a valuation allowance related to U.S. foreign tax credits of $22, a benefit to release a valuation allowance related to U.S. state tax losses of $10, a benefit to release a tax reserve in Germany of $3, and an excess tax benefit for stock compensation of $1, reduced by a charge to establish an international withholding tax reserve of $16. In the second quarter of 2025, the Company recorded a discrete net tax benefit of $35 attributable to benefits related to U.S. tax accounting method changes for the deduction of certain prior period transaction and other costs of $17, an excess benefit for stock compensation of $13, and a net benefit related to U.S. federal and state R&D credits claimed for prior years of $5.

For both the six months ended June 30, 2026 and June 30, 2025, the tax rate including discrete items was 17.9%. In the six months ended June 30, 2026, the Company recorded a discrete net tax benefit of $41 attributable to a benefit to release a valuation allowance related to U.S. foreign tax credits of $22, an excess tax benefit for stock compensation of $22, a benefit to release a valuation allowance related to U.S. state tax losses of $10, and a benefit to release a tax reserve in Germany of $3, reduced by a charge to establish an international withholding tax reserve of $16. In the six months ended June 30, 2025, the Company recorded a discrete net tax benefit of $26 attributable to benefits related to U.S. tax accounting method changes for the deduction of certain prior period transaction and other costs of $17, an excess benefit for stock compensation of $14, and a net benefit related to U.S. federal and state R&D credits claimed for prior years of $5, reduced by a net charge related to the expiration of a tax holiday in China of $6, a charge for a tax reserve established in Germany of $2, and a net charge for other small items of $2.

The tax provision was comprised of the following:

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Pre-tax income at estimated annual effective income tax rate before discrete items	$	135	$	97	$	284	$	190
Other discrete items	(20)		(35)		(41)		(26)
Provision for income taxes	$	115	$	62	$	243	$	164

17

I. Earnings Per Share and Common Stock

Basic earnings per share (“EPS”) amounts are computed by dividing earnings, after the deduction of preferred stock dividends declared, by the average number of common shares outstanding. Diluted EPS amounts assume the issuance of common stock for all potentially dilutive share equivalents outstanding.

The information used to compute basic and diluted EPS attributable to Howmet common shareholders was as follows (shares in millions in the table below):

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Net income	$	534	$	407	$	1,114	$	751
Less: preferred stock dividends declared	—		—		—		1
Net income available to Howmet Aerospace common shareholders - basic and diluted	$	534	$	407	$	1,114	$	750
Average shares outstanding - basic	400		404		400		404
Effect of dilutive securities:
Stock and performance awards	2		2		2		3
Average shares outstanding - diluted	402		406		402		407

There were no shares relating to outstanding stock options excluded from the calculation of average shares outstanding - diluted for the second quarter and six months ended June 30, 2026 and 2025.

Common stock outstanding as of June 30, 2026 and 2025 was 400 million and 404 million, respectively. Howmet redeemed all outstanding shares of its $3.75 Cumulative Class A Preferred Stock on December 17, 2025. There is no preferred stock outstanding as of June 30, 2026.

The Company has a Share Repurchase Program (the “Share Repurchase Program”) under which the Company may repurchase shares by means of trading plans established from time to time in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, block trades, private transactions, open market repurchases and/or accelerated share repurchase agreements, or other derivative transactions. There is no stated expiration for the Share Repurchase Program. Under the Share Repurchase Program, the Company may repurchase shares from time to time, in amounts, at prices, and at such times as the Company deems appropriate, subject to market conditions, legal requirements and other considerations. The Company is not obligated to repurchase any specific number of shares or to do so at any particular time, and the Share Repurchase Program may be suspended, modified, or terminated at any time without prior notice.

The following table provides details for share repurchases made for the periods presented:

	Number of shares(1)	Average price per share(2)		Total
Q1 2026 open market repurchase	1,301,914	$	230.43	$	300
Q2 2026 open market repurchase	1,197,056	$	250.61	$	300
2026 open market repurchases as of June 30, 2026	2,498,970	$	240.10	$	600
Q1 2025 open market repurchase	1,006,102	$	124.24	$	125
Q2 2025 open market repurchase	1,229,313	$	142.36	$	175
2025 open market repurchases as of June 30, 2025	2,235,415	$	134.20	$	300

(1)All of the shares repurchased have been retired.

(2)Excludes commissions cost.

The Share Repurchase Program was authorized by the Company’s Board of Directors in August 2021 at $1,500, which was increased by $2,000 by the Board in July 2024 to a total authorization of $3,500. As of August 3, 2026, the Company has approximately $697 in Board authorization remaining available after giving effect to the additional $200 share repurchases made in July 2026 at an average price per share of $276.61, which retired approximately 0.7 million additional shares.

18

As average shares outstanding are used in the calculation for both basic and diluted EPS, the full impact of share repurchases and issuances is not fully realized in EPS in the period of repurchase or issuance since share activity may occur at varying points during a period.

For excise tax on net repurchases, the Company recorded $3 in the second quarter ended June 30, 2026 and $5 in the six months ended June 30, 2026 and $1 in the second quarter and $2 in the six months ended June 30, 2025 to additional capital.

J. Accumulated Other Comprehensive Loss

The following table details the activity of the three components that comprise Accumulated other comprehensive loss:

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Pension and other postretirement benefits (F)
Balance at beginning of period	$	(588)	$	(669)	$	(592)	$	(672)
Other comprehensive income:
Unrecognized net actuarial gain and prior service benefit	—		1		—		—
Tax benefit	—		—		—		1
Total Other comprehensive income before reclassifications, net of tax	—		1		—		1
Amortization of net actuarial loss and prior service benefit(1)	5		3		10		6
Tax expense(2)	(1)		(1)		(2)		(1)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(3)	4		2		8		5
Total Other comprehensive income	4		3		8		6
Balance at end of period	$	(584)	$	(666)	$	(584)	$	(666)
Foreign currency translation
Balance at beginning of period	$	(1,084)	$	(1,162)	$	(1,052)	$	(1,207)
Other comprehensive (loss) income(4)	(10)		117		(42)		162
Balance at end of period	$	(1,094)	$	(1,045)	$	(1,094)	$	(1,045)
Cash flow hedges
Balance at beginning of period	$	(19)	$	1	$	(29)	$	1
Other comprehensive (loss) income:
Net change from periodic revaluations(5)	1		(49)		14		(50)
Tax benefit (expense)	—		11		(3)		11
Total Other comprehensive income (loss) before reclassifications, net of tax	1		(38)		11		(39)
Net amount reclassified to earnings(6)	(1)		(2)		(1)		—
Tax benefit(2)	—		1		—		—
Total amount reclassified from Accumulated other comprehensive loss, net of tax(3)	(1)		(1)		(1)		—
Total Other comprehensive (loss) income	—		(39)		10		(39)
Balance at end of period	$	(19)	$	(38)	$	(19)	$	(38)
Accumulated other comprehensive loss	$	(1,697)	$	(1,749)	$	(1,697)	$	(1,749)

(1)These amounts were recorded in Other expense, net (See Note G) in the Statement of Consolidated Operations.

(2)These amounts were included in Provision for income taxes (See Note H) in the Statement of Consolidated Operations.

(3)A positive amount indicates a corresponding charge to earnings and a negative amount indicates a corresponding benefit to earnings.

(4)In all periods presented, no amounts were reclassified to earnings.

19

(5)Includes the change in the cross-currency swaps related to the 6.750% Bonds due 2028 and the 4.850% Notes due 2031 (See Note O). In all periods presented, no amounts related to the changes were reclassified to earnings. The cross-currency swaps were recorded in Other noncurrent assets and Other noncurrent liabilities and deferred credits respectively, in the Consolidated Balance Sheet.

(6)These amounts were recorded in Cost of goods sold in the Statement of Consolidated Operations.

K. Receivables

Sale of Receivables Programs

The Company maintains an accounts receivables securitization arrangement through a wholly-owned special purpose entity (“SPE”). The net cash funding from the sale of accounts receivable was neither a use of cash nor a source of cash for the second quarter or six months ended June 30, 2026 or June 30, 2025.

The accounts receivables securitization arrangement is one in which the Company, through an SPE, has a receivables purchase agreement (the “Receivables Purchase Agreement”) pursuant to which the SPE may sell certain receivables to financial institutions. On October 9, 2025, the Company extended the Receivables Purchase Agreement to the earlier of October 8, 2027 or a termination event. The Receivables Purchase Agreement contains customary representations and warranties, as well as affirmative and negative covenants. Pursuant to the Receivables Purchase Agreement, the Company does not maintain effective control over the transferred receivables, and therefore accounts for these transfers as sales of receivables. The Receivables Purchase Agreement also contains a provision that allows the Company to increase the facility limit to $325.

The facility limit under the Receivables Purchase Agreement was $250 as of both June 30, 2026 and December 31, 2025, of which $250 was drawn as of both June 30, 2026 and December 31, 2025. As collateral against the sold receivables, the SPE maintains a certain level of unsold receivables, which were $296 and $217 as of June 30, 2026 and December 31, 2025, respectively.

The Company sold $294 and $651 during the second quarter and six months ended June 30, 2026, respectively, and $359 and $829 during the second quarter and six months ended June 30, 2025, respectively, of its receivables without recourse and received cash funding under this program, resulting in derecognition of the receivables from the Company’s Consolidated Balance Sheet. Costs associated with the sales of receivables are reflected in the Company’s Statement of Consolidated Operations in Other expense, net for the periods in which the sales occur. Cash receipts from sold receivables under the Receivables Purchase Agreement are presented in changes in receivables within operating activities in the Statement of Consolidated Cash Flows.

Other Customer Receivable Sales

In the second quarter and six months ended June 30, 2026, the Company sold certain customers’ receivables without recourse of $348 and $671, respectively, in exchange for cash. In the second quarter and six months ended June 30, 2025, the Company sold certain customers’ receivables without recourse of $223 and $406, respectively, in exchange for cash. The Company has no continuing involvement in the aforementioned amounts sold or outstanding, resulting in the derecognition of the receivables from the Company’s Consolidated Balance Sheet. The net proceeds are presented in changes in receivables within operating activities in the Statement of Consolidated Cash Flows and the costs associated with the sales of receivables are reflected in the Company’s Statement of Consolidated Operations in Other expense, net for the periods in which the sales occur.

L. Inventories

	June 30, 2026		December 31, 2025
Finished goods	$	497	$	462
Work-in-process	1,070		885
Purchased raw materials	531		424
Operating supplies	85		78
Total inventories	$	2,183	$	1,849

As of June 30, 2026 and December 31, 2025, the portion of inventories valued on a last-in, first-out (“LIFO”) basis was $707 and $642, respectively. If valued on an average-cost basis, total inventories would have been $376 and $333 higher as of June 30, 2026 and December 31, 2025, respectively.

20

M. Properties, Plants, and Equipment, net

	June 30, 2026		December 31, 2025
Land and land rights	$	113	$	85
Structures	1,179		1,134
Machinery and equipment	4,496		4,275
	5,788		5,494
Less: accumulated depreciation and amortization	3,330		3,236
	2,458		2,258
Construction work-in-progress	359		335
Properties, plants, and equipment, net	$	2,817	$	2,593

The Company had unpaid capital expenditures of $55, $101, and $85 as of June 30, 2026, December 31, 2025, and June 30, 2025, respectively, which results in cash outflows within investing activities in the Statement of Consolidated Cash Flows in subsequent periods.

N. Leases

Operating lease cost, which includes short-term leases and variable lease payments and approximates cash paid, was $20 and $18 in the second quarter of 2026 and 2025, respectively, and $39 and $35 in the six months ended June 30, 2026 and June 30, 2025.

Operating lease right-of-use assets and lease liabilities in the Consolidated Balance Sheet were as follows:

	June 30, 2026		December 31, 2025
Right-of-use assets classified in Other noncurrent assets	$	162	$	162
Current portion of lease liabilities classified in Other current liabilities	$	46	$	42
Long-term portion of lease liabilities classified in Other noncurrent liabilities and deferred credits	117		121
Total lease liabilities	$	163	$	163

O. Debt

	June 30, 2026		December 31, 2025
JPY Term Loan Facility, due 2026(1)	$	—	$	191
6.750% Bonds, due 2028(2)	300		300
3.750% Notes, due 2028	400		—
3.000% Notes, due 2029	700		700
3.900% Notes, due 2029	300		—
4.850% Notes, due 2031(3)	500		500
4.550% Notes, due 2032	500		500
4.750% Notes, due 2036	500		—
5.950% Notes, due 2037	625		625
4.750% Iowa Finance Authority Loan, due 2042	250		250
Short-term borrowings	450		—
Other, net(4)	(24)		(16)
	4,501		3,050
Less: amounts due within one year	451		191
Total long-term debt	$	4,050	$	2,859

(1)On May 22, 2026, the Company completed the early prepayment of the remaining amount outstanding under the JPY Term Loan Facility. The Company had entered into an interest rate swap to exchange the floating interest rate of the JPY Term Loan Facility to a fixed interest rate of 1.794% as of December 31, 2025, based on the Company’s long-term debt ratings. This swap was settled upon the prepayment of the JPY Term Loan Facility with an impact to the Consolidated Financial Statements of less than $1.

21

(2)The Company entered into a cross-currency swap to synthetically convert the 6.750% Bonds due 2028 (the “2028 Bonds”) into a Japanese Yen liability of approximately ¥47,760 million with a fixed annual interest rate of 3.880%.

(3)The Company entered into a cross-currency swap to synthetically convert the 4.850% Notes due 2031 (the “2031 Notes”) into a Euro liability of approximately €458 million with a fixed annual interest rate of 3.720%.

(4)Includes unamortized debt discounts and unamortized debt issuance costs related to outstanding notes and bonds listed in the table above and various financing arrangements related to subsidiaries.

Debt

Term Loan Facility. The Company maintained a Japanese yen-denominated, senior unsecured term loan facility (the “JPY Term Loan Facility”). As of June 30, 2026 and December 31, 2025, the Company was in compliance with all applicable covenants under the JPY Term Loan Facility.

On May 22, 2026, the Company completed the early prepayment of the remaining outstanding principal amount under its JPY Term Loan Facility of ¥29,702 million (approximately $186) with cash on hand.

There were no amounts outstanding under the JPY Term Loan Facility as of June 30, 2026 and ¥29,702 million ($191) outstanding as of December 31, 2025.

Public Debt. On March 3, 2026 the Company completed the offerings of aggregate principal amounts of $400 of 3.750% Notes due 2028 (the “2028 Notes”), $300 of 3.900% Notes due 2029 (the “2029 Notes”) and $500 of 4.750% Notes due 2036 (the “2036 Notes”). The Company utilized the net proceeds of $1,193 from these debt issuances as part of the financing for the CAM Acquisition (see Note C).

On May 22, 2026, the Company entered into a cross-currency swap to synthetically convert the outstanding $300 aggregate principal amount of its 2028 Bonds into a Japanese Yen liability of approximately ¥47,760 million. The fixed interest rate on the Japanese Yen liability is 3.880% per annum. Amounts payable to holders of these bonds remain unchanged.

Short-term Borrowings

Commercial Paper. The Company maintains a $1,000 commercial paper program, under which $450 was outstanding with a weighted average interest rate of 4.018% as of June 30, 2026, and no amounts were outstanding as of December 31, 2025. The Company had no commercial paper borrowings with original maturities greater than 90 days in 2026 or 2025. Amounts outstanding under the commercial paper program are supported by the unused commitments under the Company’s $600 364-Day Revolving Credit Facility and $1,000 5-Year Revolving Credit Facility.

Credit Agreements

Credit Facilities. On February 9, 2026, the Company entered into the Third Amended and Restated Five-Year Revolving Credit Agreement (as so amended and restated, the “5-Year Revolving Credit Agreement”) and the 364-Day Revolving Credit Agreement (the “364-Day Revolving Credit Agreement”). The 364-Day Revolving Credit Agreement and the 5-Year Revolving Credit Agreement are jointly referred to as the “Revolving Credit Agreements.”

The 5-Year Revolving Credit Agreement provides a $1,000 senior unsecured revolving credit facility (the “5-Year Revolving Credit Facility”) that matures on February 7, 2031, unless extended or earlier terminated in accordance with the provisions of the 5-Year Revolving Credit Agreement. The Company may make two one-year extension requests during the term of the 5-Year Revolving Credit Facility, with any extension being subject to the lender consent requirements set forth in the 5-Year Revolving Credit Agreement. Subject to the terms and conditions of the 5-Year Revolving Credit Agreement, the Company may from time to time request increases in commitments under the 5-Year Revolving Credit Facility, not to exceed $500 in aggregate principal amount, and may also request the issuance of letters of credit, subject to a letter of credit sublimit of $500 of the 5-Year Revolving Credit Facility. Under the provisions of the 5-Year Revolving Credit Agreement, based on Howmet’s current long-term debt ratings, Howmet pays an annual fee of 0.090% of the total commitment to maintain the 5-Year Revolving Credit Facility.

The 364-Day Revolving Credit Agreement provides a $600 senior unsecured revolving credit facility (the “364-Day Revolving Credit Facility” and, together with the 5-Year Revolving Credit Facility, the “Revolving Credit Facilities”) that matures on February 8, 2027, unless extended or earlier terminated in accordance with the provisions of the 364-Day Revolving Credit Agreement. Under the provisions of the 364-Day Revolving Credit Agreement, based on Howmet’s current long-term debt ratings, Howmet pays an annual fee of 0.070% of the total commitment to maintain the 364-Day Revolving Credit Facility.

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The Revolving Credit Facilities are unsecured and amounts payable under them will rank pari passu with all other unsecured, unsubordinated indebtedness of the Company. U.S. dollar denominated loans under the Revolving Credit Facilities will bear interest at a base rate, or a rate equal to the Term Secured Overnight Financing Rate (“SOFR”) plus adjustment and Euro-denominated loans will bear interest at the Euro inter-bank offered rate (“EURIBOR”), plus in each case, an applicable margin based on the credit ratings of the Company’s outstanding senior unsecured long-term debt. Based on the Company’s current long-term debt ratings, which are subject to change, there would be no applicable margin on base rate loans for either of the Revolving Credit Facilities. The applicable margin on Term SOFR and EURIBOR loans would be 0.910% per annum for the 5-Year Revolving Credit Facility and 0.930% per annum for the 364-Day Revolving Credit Facility. Loans under the Revolving Credit Facilities may be prepaid without premium or penalty, subject to customary breakage costs.

The obligation of the Company to pay amounts outstanding under the Revolving Credit Facilities may be accelerated upon the occurrence of an “Event of Default” as defined in the applicable Revolving Credit Agreement. Such Events of Default include, among others, (a) non-payment of obligations; (b) breach of any representation or warranty in any material respect; (c) non-performance of covenants and obligations; (d) with respect to other indebtedness in a principal amount in excess of $100, a default thereunder that causes such indebtedness to become due prior to its stated maturity or a default in the payment at maturity of any principal of such indebtedness; (e) the bankruptcy or insolvency of Howmet; and (f) a change in control of the Company.

The Revolving Credit Agreements contain covenants, including, among others, (a) limitations on the Company’s ability to incur liens securing indebtedness for borrowed money; (b) limitations on the Company’s ability to consummate a consolidation, merger or sale of all or substantially all of its assets; (c) limitations on the Company’s ability to change the nature of its business; and (d) a limitation requiring the ratio of Consolidated Net Debt to Consolidated EBITDA (each as defined in the Revolving Credit Agreements, as applicable) as of the end of each fiscal quarter for the period of the four fiscal quarters most recently ended, to be less than or equal to 3.75 to 1.00, which may be increased to 4.25 to 1.00, at Howmet’s option, upon the occurrence of a material acquisition for the four consecutive fiscal quarters following the consummation thereof.

As of June 30, 2026 and December 31, 2025, the Company was in compliance with all covenants under the Revolving Credit Agreements.

There were no amounts outstanding as of June 30, 2026 or December 31, 2025, and no amounts were borrowed during 2026 or 2025 under the Revolving Credit Facilities.

P. Fair Value of Financial Instruments

The carrying values of Cash and cash equivalents, restricted cash, derivatives, noncurrent receivables, Long-term debt due within one year, and short-term borrowings included in the Consolidated Balance Sheet approximate their fair value. The aforementioned derivatives were included in Prepaid expenses and other current assets, Other noncurrent assets, Other current liabilities, and Other noncurrent liabilities and deferred credits in the Consolidated Balance Sheet, as applicable. The Company holds available-for-sale, exchange-traded fixed income securities, which were included in Other noncurrent assets in the Consolidated Balance Sheet.

The Company holds a held-to-maturity, real estate debt investment purchased from the U.K. pension plan’s trust in 2025, of which $2 was redeemed during the first quarter of 2026. These activities are presented as Investing Activities in the Statement of Consolidated Cash Flows, and the remaining investment is included in Prepaid expenses and other current assets and Other noncurrent assets, in the Consolidated Balance Sheet.

The fair value of Long-term debt, less long-term debt due within one year, was based on quoted market prices for public debt with similar terms, interest rates and maturities available to Howmet.

		June 30, 2026				December 31, 2025
		Carrying value		Fair value		Carrying value		Fair value
Available-for-sale securities	Level 1	$	18	$	18	$	18	$	18
Held-to-maturity investments	Level 2	$	3	$	3	$	5	$	5
Long-term debt, less long-term debt due within one year	Level 2	$	4,050	$	4,034	$	2,859	$	2,919

Restricted cash, which is included in Prepaid expenses and other current assets in the Consolidated Balance Sheet, was $1 as of both June 30, 2026 and December 31, 2025.

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Q. Contingencies, Commitments, and Other Liabilities

Contingencies

The following information supplements and, as applicable, updates the discussion of the contingencies and commitments in Note U to the Consolidated Financial Statements in our Form 10-K, and should be read in conjunction with the complete descriptions provided in the Form 10-K.

Environmental Matters. Howmet participates in environmental assessments and/or cleanups at more than 30 locations. These include owned or operating facilities and adjoining properties, previously owned or operated facilities and adjoining properties, and waste sites, including Superfund (Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”)) sites.

A liability is recorded for environmental remediation when a cleanup program becomes probable and the costs can be reasonably estimated. As assessments and cleanups proceed, the liability is adjusted based on progress made in determining the extent of remedial actions and related costs. The liability can change substantially due to factors such as the nature and extent of contamination, changes in remedial requirements, and technological changes, among others.

The Company’s remediation reserve balance was $16 as of both June 30, 2026 and December 31, 2025 and was recorded in Other noncurrent liabilities and deferred credits in the Consolidated Balance Sheet (of which $7 as of both June 30, 2026 and December 31, 2025 was classified as a current liability), and reflects the most probable costs to remediate identified environmental conditions for which costs can be reasonably estimated. Payments related to remediation expenses applied against the reserve were $1 in both the second quarter and six months ended June 30, 2026, and included expenditures currently mandated, as well as those not required by any regulatory authority or third party.

Included in annual operating expenses are the recurring costs of managing hazardous substances and environmental programs. These costs are estimated to be less than 1% of Cost of goods sold.

Tax. In December 2013 and 2014, the Company received audit assessment notices from the French Tax Authority (“FTA”) for the 2010 through 2012 tax years. In 2016, the Company appealed to the Committee of the Abuse of Tax Law, where it received a favorable nonbinding decision. The FTA disagreed with the Committee of the Abuse of Tax Law’s opinion, and the Company appealed to the Montreuil Administrative Court, where in 2020 the Company prevailed on the merits. The FTA appealed this decision to the Paris Administrative Court of Appeal in 2021. On March 31, 2023, the Company received an adverse decision from the Paris Administrative Court of Appeal. The Company appealed this decision to the French Administrative Supreme Court. The assessment amount was $17 (€16 million), including $10 (€9 million) of tax and interest up through 2017 and $7 (€7 million) of penalties. The Company estimated additional interest to be $2 (€2 million). On July 23, 2024, the Company received the French Administrative Supreme Court’s decision. That decision upheld the assessment of $10 (€9 million) of tax and interest, while cancelling the penalties of $7 (€7 million) and remanding the penalty assessment issue to the Paris Administrative Court of Appeal for reexamination. On April 16, 2026, the Paris Administrative Court of Appeal reduced the penalties assessed to $4 (€3 million).

In 2023, the Company recorded an income tax reserve in Provision for income taxes in the Statement of Consolidated Operations of $21 (€19 million), which includes tax, estimated interest and penalties, for the 2010 through 2012 tax years, as well as the remaining tax years open for reassessment (2020-2023). In accordance with FTA dispute resolution practices, the Company paid the assessment amount including tax, interest, and penalties, to the FTA in December 2023. The Company expects to pay the additional interest related to the assessment in 2026. The Company also paid the estimated tax related to the 2020-2023 tax years in 2023. As of the third quarter of 2024, the Company no longer recorded an uncertain tax position related to the tax and interest assessed. In October 2024, the Company received a refund of the penalties that were remanded. Based on the April 2026 decision, the Company expects to pay the reduced penalties in 2026.

Legal Proceedings.

Indemnified Matters. The Separation and Distribution Agreement, dated October 31, 2016, that the Company entered into with Alcoa Corporation in connection with its separation from Alcoa Corporation, and the Separation and Distribution Agreement, dated March 31, 2020, that the Company entered into with Arconic Corporation in connection with its separation from Arconic Corporation, provide for cross-indemnities for claims subject to indemnification between the Company and Alcoa Corporation and between the Company and Arconic Corporation, respectively. To date, Alcoa Corporation and Arconic Corporation have fulfilled their respective indemnification obligations to the Company, and claims subject to indemnification by Alcoa Corporation or Arconic Corporation have not impacted the Company financially. Among other claims that are covered by these indemnities, Arconic Corporation indemnifies the Company (previously named Arconic Inc. and, prior to that, Alcoa Inc.) for all potential liabilities associated with the fire that occurred at the Grenfell Tower in London, U.K. on June 14, 2017, including the following legal proceedings, as updated from the Form 10-K:

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United Kingdom Litigation. All personal injury claims on behalf of survivors and estates of decedents have been settled pursuant to terms of confidential settlement agreements and are discontinued and closed. On June 21, 2024, the Company was joined as a party to proceedings initiated by the Royal Borough of Kensington and Chelsea (RBKC) and Kensington and Chelsea Tenant Management Organisation (KCTMO) against AAP SAS and Whirlpool. On February 14, 2025, RBKC and KCTMO served their Particulars of Claim and Schedule of Loss on the defendants, which they updated on February 27, 2026. On July 18, 2025, the Company and AAP SAS filed their defense and counterclaim against RBKC and KCTMO, and contribution claims against various co-defendants and other third parties, as updated on March 13, 2026. The next case management conference is scheduled for December 13, 2027. Trial is anticipated to occur between October 2028 and July 2029.

Raul v. Albaugh, et al. (United States District Court for the District of Delaware). On June 22, 2018, a derivative complaint was filed nominally on behalf of Arconic Inc. by a purported Arconic Inc. stockholder against the then directors and certain officers of Arconic Inc., naming Arconic Inc. as a nominal defendant. The complaint alleged violations of federal securities laws relating to the Grenfell Fire, as well as claims under Delaware state law. On February 10, 2026, the court held a final settlement approval hearing, and the parties’ Stipulation of Settlement was approved. The Stipulation of Settlement had no material impact on the Company’s results of operations or cash flows.

With respect to the regulatory investigations in the U.K. described in the Form 10-K, there are no updates.

Other. In addition to the matters discussed above, various other lawsuits, claims, and proceedings have been or may be instituted or asserted against the Company, including those pertaining to environmental, product liability, safety and health, employment, tax and antitrust matters. While the amounts claimed in these other matters may be substantial, the ultimate liability cannot currently be determined because of the considerable uncertainties that exist. Therefore, it is possible that the Company’s liquidity or results of operations in a period could be materially affected by one or more of these other matters. However, based on facts currently available, management believes that the disposition of these other matters that are pending or asserted will not have a material adverse effect, individually or in the aggregate, on the results of operations, financial position or cash flows of the Company.

Commitments

Letters of Credit. The Company has outstanding letters of credit primarily related to workers’ compensation, environmental obligations, tax matters, and insurance obligations. The total amount committed under these letters of credit, which automatically renew or expire at various dates, primarily in 2026 and 2027, was $76 as of June 30, 2026.

Pursuant to the Separation and Distribution Agreements between the Company and Arconic Corporation and between the Company and Alcoa Corporation, the Company is required to retain letters of credit of $43, which are included in the $76 in the above paragraph, that had previously been provided related to the Company, Arconic Corporation, and Alcoa Corporation workers’ compensation claims that occurred prior to the respective separation transactions of April 1, 2020 and November 1, 2016. Arconic Corporation and Alcoa Corporation workers’ compensation and letters of credit fees paid by the Company are proportionally billed to, and are reimbursed by, Arconic Corporation and Alcoa Corporation, respectively. Also, the Company was required to provide letters of credit for certain Arconic Corporation environmental obligations and, as a result, the Company has $8 of outstanding letters of credit relating to such liabilities, which are also included in the $76 in the above paragraph. Arconic Corporation is being billed for these letter of credit fees paid by the Company and will reimburse the Company for any payments made under these letters of credit.

Surety Bonds. The Company has outstanding surety bonds primarily related to customs duties, workers’ compensation, pension, environmental-related matters, and contract performance. The total amount committed under these annual surety bonds, which automatically renew or expire at various dates, primarily in 2026 and 2027, was $43 as of June 30, 2026.

Pursuant to the Separation and Distribution Agreements between the Company and Arconic Corporation and between the Company and Alcoa Corporation, the Company is required to provide surety bonds of $19, which are included in the $43 in the above paragraph, that had previously been provided related to the Company, Arconic Corporation, and Alcoa Corporation workers’ compensation claims that occurred prior to the respective separation transactions of April 1, 2020 and November 1, 2016. Arconic Corporation and Alcoa Corporation workers’ compensation claims and surety bond fees paid by the Company are proportionately billed to, and are reimbursed by, Arconic Corporation and Alcoa Corporation, respectively.

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Guarantees. Pursuant to the Separation and Distribution Agreement between the Company and Alcoa Corporation, Howmet was required to provide certain guarantees for Alcoa Corporation, which were included in Other noncurrent liabilities and deferred credits in the Consolidated Balance Sheet. The remaining guarantee which had a fair value of $5 as of both June 30, 2026 and December 31, 2025, relates to a long-term energy supply agreement that expires in 2047 at an Alcoa Corporation facility, for which the Company is secondarily liable in the event of a payment default by Alcoa Corporation. If the Company incurs any liability under this guarantee, Arconic Corporation is obligated to indemnify the Company for 50% of such liability. The Company currently views the risk of an Alcoa Corporation payment default on its obligations under the contract to be remote. The Company is required to provide a guarantee up to an estimated present value amount of approximately $1,141 as of both June 30, 2026 and December 31, 2025 in the event of an Alcoa Corporation default. In the fourth quarter of 2025, a surety bond with a limit of $80 relating to this guarantee was obtained by Alcoa Corporation to protect Howmet’s obligation. This surety bond will be renewed on an annual basis by Alcoa Corporation.

As of June 30, 2026, Howmet had other outstanding bank guarantees related to customs duties, rental, plant expansion, and environmental obligations. The total amount committed under these guarantees, which expire at various dates between 2026 and 2028, was $4 as of June 30, 2026.

Other Liabilities

Supplier Financing Arrangements. We offer voluntary supplier finance programs to suppliers who may elect to sell their receivables to third parties at the sole discretion of both the suppliers and the third parties. The program is at no cost to the Company and provides additional liquidity to our suppliers, if they desire, at their cost. Under these programs, the Company pays the third-party bank, rather than the supplier, the stated amount of the confirmed invoices on the original maturity date of the invoices. The Company or the third-party bank may terminate a program upon at least 30 days’ notice. Supplier invoices under the program require payment in full no more than approximately 120 days of the invoice date. As of June 30, 2026 and December 31, 2025, supplier invoices that are subject to future payment under these programs were $377 and $266, respectively, and are included in Accounts payable, trade in the Consolidated Balance Sheet.

R. Subsequent Events

Management evaluated all activity of Howmet and concluded that no subsequent events have occurred that would require recognition in the Consolidated Financial Statements or disclosure in the Notes to the Consolidated Financial Statements, except as noted below:

See Note I regarding share repurchases made in July 2026.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

(U.S. dollars in millions, except per share amounts)

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) is intended to help the reader understand our results of operations and financial condition. The MD&A is provided as a supplement to, and should be read in conjunction with, our consolidated financial statements and notes thereto included in Part I, Item 1 (Financial Statements and Supplementary Data) of this Form 10-Q.

Overview

Howmet is a global leader in lightweight metals engineering and manufacturing. Howmet’s innovative, multi-material products, which include nickel, titanium, aluminum, and cobalt, are used worldwide in the aerospace (commercial and defense), commercial transportation, gas turbines, and other markets.

In the six months ended June 30, 2026, the Company derived approximately 68% of its revenue from products sold to the commercial and defense aerospace markets. The timing and level of future aircraft builds by original equipment manufacturers (“OEMs”) are subject to changes and uncertainties, including but not limited to geopolitical tensions or volatility in global energy and raw material markets, which may cause our future results to differ from prior periods due to changes in product mix in certain segments.

For additional information regarding the ongoing risks related to our business, see section Part I, Item 1A, “Risk Factors” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025.

Results of Operations

Earnings Summary:

Sales. Sales were $2,547 in the second quarter of 2026 compared to $2,053 in the second quarter of 2025, and $4,860 in the six months ended June 30, 2026 compared to $3,995 in the six months ended June 30, 2025. The increase of $494, or 24%, in the second quarter of 2026 and the increase of $865, or 22% in the six months ended June 30, 2026, was primarily due to growth in the commercial and defense aerospace and gas turbines markets, including engine spares, favorable product pricing, cost pass through, and sales from the Consolidated Aerospace Manufacturing, LLC (“CAM”) and Brunner Manufacturing Co. Inc. (“Brunner”) acquisitions from the dates they were acquired by the Company, partially offset by lower volumes in the commercial transportation market and the disk forging facility divestiture on March 31, 2026. Product price increases are in excess of material and inflationary cost pass through to our customers.

Cost of goods sold (“COGS”). COGS as a percentage of Sales was 62.7% in the second quarter of 2026 compared to 66.5% in the second quarter of 2025 and 62.9% in the six months ended June 30, 2026 compared to 66.5% in the six months ended June 30, 2025. The decrease in the second quarter and six months ended June 30, 2026 was primarily due to growth in the commercial and defense aerospace and gas turbines markets, favorable product pricing, partially offset by lower volumes in the commercial transportation market, higher cost pass through, and increased net headcount, primarily in the Engine Products segment, in support of expected revenue increases. Additionally, the decrease includes the impact of the acquisitions and divestiture completed this year, including amortization expense of inventory step-up recorded in accordance with the allocation of purchase price under accounting principles generally accepted in the United States of America (“GAAP”).

Selling, general administrative, and other expenses (“SG&A”). SG&A expenses were $148 in the second quarter of 2026 compared to $89 in the second quarter of 2025 and $259 in the six months ended June 30, 2026 compared to $174 in the six months ended June 30, 2025. The increase of $59, or 66%, in the second quarter of 2026 and the increase of $85, or 49%, in the six months ended June 30, 2026 was primarily due to higher employment costs, including incremental headcount from the acquisitions, acquisition and acquisition-related costs, and various other administrative expenses.

Provision for depreciation and amortization (“D&A”). The provision for D&A was $84 in the second quarter of 2026 compared to $69 in the second quarter of 2025 and $158 in the six months ended June 30, 2026 compared to $138 in the six months ended June 30, 2025. The increase of $15, or 22%, in the second quarter of 2026 and the increase of $20, or 14%, in the six months ended June 30, 2026 was primarily due to higher depreciation from additional capital investments in capacity expansions within the Engine Products segment, the CAM and Brunner acquisitions from the dates they were acquired by the Company, and amortization expense of inventory step-up recorded in accordance with the allocation of purchase price under GAAP.

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Restructuring and other credits. Restructuring and other charges were less than $1 in the second quarter of 2026 compared to Restructuring and other charges of less than $1 in the second quarter of 2025. Restructuring and other credits were $93 in the six months ended June 30, 2026 compared to Restructuring and other credits of $4 in the six months ended June 30, 2025. Restructuring and other credits for the six months ended June 30, 2026 were primarily due to a gain on the sale of the Company’s disk forging facility in Savannah, Georgia within Engineered Structures of $93. Restructuring and other charges for the second quarter of 2025 were primarily due to a charge for layoff costs of $3, partially offset by a gain on the sale of assets at a previously closed facility in Forged Wheels of $2 and a reversal of $1 for a layoff reserve related to a prior period. Restructuring and other credits for the six months ended June 30, 2025 were primarily due to a gain on the sale of assets at a small U.K. manufacturing facility in Engineered Structures of $3, a gain on the sale of assets at a previously closed facility in Forged Wheels of $2, and a reversal of $2 for a layoff reserve related to a prior period, partially offset by a charge for layoff costs of $3.

See Note E to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q for additional detail.

Interest expense, net. Interest expense, net was $51 in the second quarter of 2026 compared to $38 in the second quarter of 2025 and $94 in the six months ended June 30, 2026 compared to $77 in the six months ended June 30, 2025. The increase of $13, or 34%, in the second quarter of 2026 and $17, or 22%, in the six months ended June 30, 2026 was primarily due to the March 2026 issuance of $1,200 aggregate principal amount of notes that have interest rates ranging from 3.750% to 4.750% and the November 2025 issuance of $500 of 4.550% Notes due 2032, partially offset by the early prepayment of the JPY Term Loan Facility, the cross-currency swap that synthetically converted the 6.750% Bonds due 2028 into a lower fixed-interest-rate Japanese Yen liability, the early redemption of $625 of 5.900% Notes in December 2025, and prepayments of the USD Term Loan Facility during various periods in 2025. On an annual basis, the current year debt actions are expected to increase Interest expense, net by approximately $38.

See Note O to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q for additional detail related to the Company’s debt.

Other expense, net. Other expense, net was $11 in the second quarter of 2026 compared to $14 in the second quarter of 2025 and $13 in the six months ended June 30, 2026 compared to $23 in the six months ended June 30, 2025. The decrease in expense of $3 in the second quarter of 2026 and $10 in the six months ended June 30, 2026 was primarily due to an increase in interest income resulting from additional cash on hand prior to the acquisition of CAM. Non-service related net periodic benefit costs related to defined benefit plans and other postretirement benefit plans are expected to increase by approximately $5 for the full year 2026 versus 2025.

See Note G to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q for additional detail.

Provision for income taxes. The estimated annual effective tax rate, before discrete items, applied to ordinary income was 20.9% in the second quarter ended June 30, 2026 compared to 20.8% in the second quarter ended June 30, 2025. The tax rate including discrete items was 17.7% in the second quarter of 2026 compared to 13.2% in the second quarter of 2025. A discrete net tax benefit of $20 was recorded in the second quarter of 2026 compared to a discrete net tax benefit of $35 in the second quarter of 2025. The tax rate including discrete items was 17.9% in the six months ended June 30, 2026 and June 30, 2025. A discrete net tax benefit of $41 was recorded in the six months ended June 30, 2026 compared to a discrete net tax benefit of $26 recorded in the six months ended June 30, 2025. The 2026 estimated annual effective tax rate remains consistent with the 2025 rate.

See Note H to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q for additional detail.

Net income. Net income was $534, or $1.33 per diluted share, in the second quarter of 2026 compared to $407, or $1.00 per diluted share, in the second quarter of 2025 and $1,114, or $2.77 per diluted share, in the six months ended June 30, 2026 compared to $751, or $1.84 per diluted share, in the six months ended June 30, 2025. The increase of $127 in the second quarter of 2026 and $363 in the six months ended June 30, 2026 was primarily due to growth in the commercial and defense aerospace and gas turbines markets, including engine spares, as well as favorable product pricing and the CAM and Brunner acquisitions, partially offset by lower volumes in the commercial transportation market.

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Segment Information

The Company’s operations consist of four worldwide reportable segments: Engine Products, Fastening Systems, Engineered Structures, and Forged Wheels. Segment performance under Howmet’s management reporting system is evaluated based on Segment Adjusted EBITDA. The Company’s Chief Executive Officer, who has been determined to be our Chief Operating Decision Maker (“CODM”), believes that Segment Adjusted EBITDA provides information with respect to the Company’s operating performance and the Company’s ability to meet its financial obligations. Howmet’s definition of Segment Adjusted EBITDA is defined as Operating Income excluding Restructuring and other credits, Provision for depreciation and amortization, and Special items. Special items, including Restructuring and other credits, are excluded from Segment Adjusted EBITDA. The Company’s CODM considers forecast-to-actual variances for Segment Adjusted EBITDA when allocating resources across the Company’s reportable segments. Segment Adjusted EBITDA may not be comparable to similarly titled measures of other companies. Differences between the total segment and consolidated totals are in Corporate. (See Note D to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q for a description of each segment).

The Company has aligned its operations consistent with how the Chief Executive Officer assesses operating performance and allocates capital.

In the first quarter of 2026, the Company’s CODM reorganized Howmet’s segments by moving a titanium alloy location from Engine Products to Engineered Structures as it better aligns with the operations of the Engineered Structures segment. The comparable periods of Engine Products and Engineered Structures have been recast to reflect the new alignment. The recasting had no impact on the Company’s consolidated results, financial position or cash flows. The recast historical segment information is available in Exhibit 99.1 to the Company’s Current Report on Form 8-K dated May 28, 2026.

Engine Products

	Second quarter ended						Six months ended
	June 30,						June 30,
	2026			2025			2026			2025
Third-party sales	$	1,373		$	1,038		$	2,626		$	2,012
Segment Adjusted EBITDA	517			343			975			661
Segment Adjusted EBITDA Margin	37.7		%	33.0		%	37.1		%	32.9		%

Third-party sales for the Engine Products segment increased $335, or 32%, in the second quarter of 2026 compared to the second quarter of 2025, primarily due to growth in the commercial and defense aerospace and gas turbines markets, including engine spares growth.

Third-party sales for the Engine Products segment increased $614, or 31%, in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to growth in the commercial and defense aerospace and gas turbines markets, including engine spares growth.

Segment Adjusted EBITDA for the Engine Products segment increased $174, or 51%, in the second quarter of 2026 compared to the second quarter of 2025, primarily due to growth in the commercial and defense aerospace and gas turbines markets. The segment absorbed approximately 485 net headcount in the second quarter of 2026 in support of expected revenue increases.

Segment Adjusted EBITDA for the Engine Products segment increased $314, or 48%, in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to growth in the commercial and defense aerospace and gas turbines markets. The segment absorbed approximately 720 net headcount in the six months ended June 30, 2026, in support of expected revenue increases.

Segment Adjusted EBITDA Margin for the Engine Products segment increased approximately 470 basis points in the second quarter of 2026 compared to the second quarter of 2025, primarily due to growth in the commercial and defense aerospace and gas turbines markets.

Segment Adjusted EBITDA Margin for the Engine Products segment increased approximately 420 basis points in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to growth in the commercial and defense aerospace and gas turbines markets.

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In 2026, as compared to 2025, demand in the commercial and defense aerospace and gas turbines markets is expected to increase, including engine spares growth in these markets. Capital expenditures are expected to remain elevated, with additional investments in capacity expansions to support aerospace and gas turbines market growth. Governmental policies, laws and regulations, and other geopolitical and economic factors, including inflation, customer requirements, tariffs, and fluctuations in foreign currency exchange rates and interest rates, may affect future results of operations and cash flow. The timing, extent, application, and level of tariffs by various governments and our ability to recover tariffs are subject to changes and uncertainties.

Fastening Systems

	Second quarter ended						Six months ended
	June 30,						June 30,
	2026			2025			2026			2025
Third-party sales	$	589		$	431		$	1,060		$	843
Segment Adjusted EBITDA	177			126			327			253
Segment Adjusted EBITDA Margin	30.1		%	29.2		%	30.8		%	30.0		%

Third-party sales for the Fastening Systems segment increased $158, or 37%, in the second quarter of 2026 compared to the second quarter of 2025, primarily due to the CAM and Brunner acquisitions as well as growth in the commercial aerospace and defense aerospace markets.

Third-party sales for the Fastening Systems segment increased $217, or 26%, in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to the CAM and Brunner acquisitions as well as growth in the commercial aerospace and defense aerospace markets.

Segment Adjusted EBITDA for the Fastening Systems segment increased $51, or 40%, in the second quarter of 2026 compared to the second quarter of 2025, primarily due to growth in the commercial aerospace and defense aerospace markets as well as the CAM and Brunner acquisitions.

Segment Adjusted EBITDA for the Fastening Systems segment increased $74, or 29%, in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to growth in the commercial aerospace and defense aerospace markets as well as the CAM and Brunner acquisitions.

Segment Adjusted EBITDA Margin for the Fastening Systems segment increased approximately 90 basis points in the second quarter of 2026 compared to the second quarter of 2025, primarily due to growth in the commercial aerospace market, partially offset by the impacts of the CAM and Brunner acquisitions.

Segment Adjusted EBITDA Margin for the Fastening Systems segment increased approximately 80 basis points in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to growth in the commercial aerospace and defense aerospace markets, partially offset by the impacts of the CAM and Brunner acquisitions.

In 2026, as compared to 2025, demand in the commercial aerospace and defense aerospace markets is expected to increase, and results will also include the impacts of the CAM and Brunner acquisitions. Modest recovery in the commercial transportation market began in the second quarter of 2026 and is expected to continue into the second half of 2026, amid energy-related, economic, and regulatory uncertainty in North America. Governmental policies, laws and regulations, and other geopolitical and economic factors, including inflation, customer requirements, tariffs, and fluctuations in foreign currency exchange rates and interest rates, may affect future results of operations and cash flow. The timing, extent, application, and level of tariffs by various governments and our ability to recover tariffs are subject to changes and uncertainties.

The Brunner acquisition has been included in the operations of the Fastening Systems segment starting in February 2026. The CAM acquisition has been included in our Fastening Systems segment starting in the second quarter of 2026.

Engineered Structures

	Second quarter ended						Six months ended
	June 30,						June 30,
	2026			2025			2026			2025
Third-party sales	$	269		$	308		$	563		$	612
Segment Adjusted EBITDA	64			68			130			135
Segment Adjusted EBITDA Margin	23.8		%	22.1		%	23.1		%	22.1		%

30

Third-party sales for the Engineered Structures segment decreased $39, or 13%, in the second quarter of 2026 compared to the second quarter of 2025, primarily due to the disk forging facility divestiture and product rationalization. The Engineered Structures segment continues to focus on the optimization of its manufacturing footprint and rationalization of product mix in order to maximize profitability.

Third-party sales for the Engineered Structures segment decreased $49, or 8%, in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to the disk forging facility divestiture and product rationalization. The Engineered Structures segment is focusing on the optimization of its manufacturing footprint and rationalization of product mix in order to maximize profitability.

Segment Adjusted EBITDA for the Engineered Structures segment decreased $4, or 6%, in the second quarter of 2026 compared to the second quarter of 2025 due to the disk forging facility divestiture and product rationalization, partially offset by productivity gains.

Segment Adjusted EBITDA for the Engineered Structures segment decreased $5, or 4% in the six months ended June 30, 2026 compared to the six months ended June 30, 2025 due to the disk forging facility divestiture and product rationalization, partially offset by productivity gains.

Segment Adjusted EBITDA Margin for the Engineered Structures segment increased approximately 170 basis points in the second quarter of 2026 compared to the second quarter of 2025, primarily due to operational improvement efforts and lower net headcount.

Segment Adjusted EBITDA Margin for the Engineered Structures segment increased approximately 100 basis points in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to operational improvement efforts and lower net headcount.

The Engineered Structures segment continues to focus on the optimization of its manufacturing footprint, including the sale of its disk forging facility in Savannah, Georgia on March 31, 2026, and rationalization of product mix in order to maximize profitability. In 2026, as compared to 2025, this is expected to result in lower revenue in the commercial aerospace and defense aerospace markets. Governmental policies, laws and regulations, and other geopolitical and economic factors, including inflation, customer requirements, tariffs, and fluctuations in foreign currency exchange rates and interest rates, may affect future results of operations and cash flow. The timing, extent, application, and level of tariffs by various governments and our ability to recover tariffs are subject to changes and uncertainties.

Forged Wheels

	Second quarter ended						Six months ended
	June 30,						June 30,
	2026			2025			2026			2025
Third-party sales	$	316		$	276		$	611		$	528
Segment Adjusted EBITDA	88			76			178			144
Segment Adjusted EBITDA Margin	27.8		%	27.5		%	29.1		%	27.3		%

Third-party sales for the Forged Wheels segment increased $40, or 14%, in the second quarter of 2026 compared to the second quarter of 2025 primarily due to an increase in aluminum and other inflationary cost pass through, partially offset by lower volumes in the commercial transportation market.

Third-party sales for the Forged Wheels segment increased $83, or 16%, in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to an increase in aluminum and other inflationary cost pass through and favorable foreign currency exchange rates, partially offset by lower volumes in the commercial transportation market.

Segment Adjusted EBITDA for the Forged Wheels segment increased $12, or 16%, in the second quarter of 2026 compared to the second quarter of 2025, primarily due to cost reductions, including lower net headcount, partially offset by lower volumes in the commercial transportation market.

Segment Adjusted EBITDA for the Forged Wheels segment increased $34, or 24%, in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to cost reductions, including lower net headcount, as well as favorable foreign currency exchange rates, partially offset by lower volumes in the commercial transportation market.

Segment Adjusted EBITDA Margin for the Forged Wheels segment increased approximately 30 basis points in the second quarter of 2026 compared to the second quarter of 2025, primarily due to cost reductions, including lower net headcount in response to lower volumes in the commercial transportation market, partially offset by higher aluminum and other inflationary cost pass through.

31

Segment Adjusted EBITDA Margin for the Forged Wheels segment increased approximately 180 basis points in the six months ended June 30, 2026 compared to the six months ended June 30, 2025, primarily due to cost reductions, including lower net headcount in response to lower volumes in the commercial transportation market, as well as favorable foreign currency exchange rates, partially offset by higher aluminum and other inflationary cost pass through.

In 2026, as compared to 2025, demand in the commercial transportation markets served by Forged Wheels is expected to remain low. Modest recovery in the commercial transportation market began in the second quarter and is expected to continue into the second half of 2026, amid volatile aluminum metal pricing and energy-related, economic, and regulatory uncertainty in North America. Governmental policies, laws and regulations, and geopolitical and other economic factors, including inflation, customer requirements, tariffs, and fluctuations in foreign currency exchange rates and interest rates, may affect future results of operations and cash flow. The timing, extent, application, and level of tariffs by various governments and our ability to recover tariffs are subject to changes and uncertainties.

Reconciliation of Total Segment Adjusted EBITDA to Income before income taxes

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Income before income taxes	$	649	$	469	$	1,357	$	915
Interest expense, net	51		38		94		77
Other expense, net	11		14		13		23
Operating income	$	711	$	521	$	1,464	$	1,015
Segment provision for depreciation and amortization	83		67		155		135
Unallocated amounts:
Restructuring and other credits	—		—		(93)		(4)
Corporate expense(1)	52		25		84		47
Total Segment Adjusted EBITDA	$	846	$	613	$	1,610	$	1,193

(1)    Corporate expense includes selling, general administrative and other expenses, costs of corporate headquarters, acquisition and acquisition-related costs, costs associated with closures, supply chain disruptions, and other items.

Total Segment Adjusted EBITDA is a non-GAAP financial measure. Management believes that this measure is meaningful to investors because it provides additional information with respect to the Company’s operating performance and the Company’s ability to meet its financial obligations. Differences between the total segment and consolidated totals are in Corporate.

See Restructuring and other credits discussion above under “Results of Operations” for reference.

Corporate expense increased $27, or 108%, in the second quarter of 2026 compared to the second quarter of 2025 primarily due to acquisition and acquisition-related costs of $22 as well as employment costs.

Corporate expense increased $37, or 79%, in the six months ended June 30, 2026 compared to the six months ended June 30, 2025 primarily due to acquisition and acquisition-related costs of $28 as well as employment costs.

Environmental Matters

See the Environmental Matters section of Note Q to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q.

Subsequent Events

See Note R to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q for subsequent events.

Liquidity and Capital Resources

Operating Activities

Cash provided from operations was $1,036 in the six months ended June 30, 2026 compared to $699 in the six months ended June 30, 2025. The increase of $337, or 48%, was primarily due to higher operating results of $311 and lower working capital of $17, partially offset by higher pension contributions of $6. The components of the change in working capital primarily included favorable changes in accounts payable of $205, partially offset by unfavorable changes in inventories of $84, prepaid expenses and other current assets of $59, receivables of $26, other accrued expenses, including timing of interest payments on long-term debt and deferred revenue, of $12, and taxes, including income taxes, of $7.

Management expects Howmet’s estimated pension contributions and other postretirement benefit payments in 2026 to be approximately $65.

32

Financing Activities

Cash provided from financing activities was $685 in the six months ended June 30, 2026 compared to cash used for financing activities of $506 in the six months ended June 30, 2025. The increase of $1,191, or 235%, was primarily due to additions to debt of $1,200 and a net increase in commercial paper of $450, partially offset by increased common stock repurchases of $300, increased payments on debt of $109, increased taxes paid for the net share settlement of equity awards of $21 primarily due to the timing of payments year over year, and increased dividends paid to common stock shareholders of $14 due to a $0.02 increase in dividends per common share, from $0.10 per share in the second quarter of 2025 to $0.12 per share in the second quarter of 2026, and debt issuance costs of $12. On an annual basis, the current year debt actions are expected to increase Interest expense, net by approximately $38.

The declaration of future common stock dividends is subject to the discretion and approval of the Board of Directors of Howmet after the Board’s consideration of all factors it deems relevant and subject to applicable law.

The Company maintains a Five-Year Revolving Credit Agreement that provides a $1,000 senior unsecured revolving credit facility (the “5-Year Revolving Credit Facility”) and a 364-Day Revolving Credit Agreement that provides a $600 senior unsecured revolving credit facility (the “364-Day Revolving Credit Facility” and, together with the 5-Year Revolving Credit Facility, the “Revolving Credit Facilities”) with a syndicate of lenders and issuers named therein (See Note O to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q for reference). There were no amounts outstanding as of June 30, 2026 or December 31, 2025, and no amounts were borrowed during 2026 or 2025 under these revolving credit agreements.

The Company has a commercial paper program under which the Company may issue unsecured commercial paper from time to time up to a maximum aggregate face amount of $1,000. The Company had $450 of commercial paper outstanding as of June 30, 2026, and no amounts were outstanding under the commercial paper program as of December 31, 2025. The Company had no commercial paper borrowings with original maturities greater than 90 days in 2026 or 2025. The Company’s commercial paper is sold on customary terms in the U.S. commercial paper market on a private placement basis. The proceeds of the commercial paper are used for general corporate purposes, including the CAM acquisition. In conjunction with the commercial paper program, the Company was assigned short-term credit ratings by Moody’s Investors Service, Inc., S&P Global Ratings, and Fitch Ratings, Inc.

The Company has an effective shelf registration statement on Form S-3, filed with the SEC, which allows for offerings of debt securities from time to time. The Company may opportunistically issue new debt securities in accordance with securities laws or utilize commercial paper in order to, but not limited to, refinance existing indebtedness. The Company continues to evaluate whether, when, and to what extent it may access capital markets, including any plans to refinance the $300 million aggregate principal amount of its 6.750% Bonds due January 2028 (the “2028 Bonds”). Our ability to refinance our indebtedness or enter into alternative financings in adequate amounts on commercially reasonable terms, or terms acceptable to us, may be affected by circumstances and economic events outside of our control. In the event that a refinancing does not occur before the maturity date of the 2028 Bonds, the Company believes that its projected cash on hand, and/or availability under the Revolving Credit Facilities will enable the Company to repay the 2028 Bonds.

In the future, the Company may, from time to time, redeem portions of its debt securities or repurchase portions of its debt or equity securities, in either the open market or through privately negotiated transactions, in accordance with applicable SEC and other legal requirements. The timing, prices, and sizes of purchases depend upon prevailing trading prices, general economic and market conditions, and other factors, including applicable securities laws. Such securities repurchases may be completed by means of trading plans established from time to time in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, block trades, private transactions, open market repurchases, tender offers, and/or accelerated share repurchase agreements, or other derivative transactions.

The Company’s costs of borrowing and ability to access the capital markets are affected not only by market conditions but also by the short-term and long-term debt ratings assigned to the Company by the major credit rating agencies. The Company believes that its projected cash on hand and availability of its Revolving Credit Facilities, its commercial paper program, and its accounts receivables securitization program will continue to be sufficient to fund our operating and capital allocation activities.

33

The three major credit rating agencies have rated Howmet’s debt with investment grade ratings. The Company’s most recent short-term and long-term credit ratings, as well as the current outlook from the three major credit rating agencies are as follows:

	Short-Term	Long-Term	Outlook
S&P Global Ratings (“S&P”)	A-2	BBB+	Stable
Moody’s Investors Service, Inc. (“Moody’s”)	P-2	Baa1	Positive
Fitch Ratings, Inc. (“Fitch”)	F1	A-	Stable

On May 7, 2026, Moody’s updated Howmet’s rating outlook from stable to positive, citing strong demand for aerospace components, potential for free cash flow growth and sustained, low financial leverage.

On February 13, 2026, Fitch upgraded Howmet’s long-term debt rating from BBB+ to A-, citing conservative capital allocation and strong deleveraging momentum.

On September 8, 2025, S&P upgraded Howmet’s long-term debt rating from BBB to BBB+, and affirmed the current short-term debt rating and outlook at A-2 and stable, respectively, citing strong demand for commercial aerospace components, margin gains, and debt reduction.

Investing Activities

Cash used for investing activities was $1,900 in the six months ended June 30, 2026 compared to $212 in the six months ended June 30, 2025. The increase of $1,688, or 796%, was primarily due to cash used for the CAM and Brunner acquisitions, net of cash acquired, of $1,929, partially offset by an increase in proceeds from the sale of assets and businesses of $217, primarily due to the sale of its disk forging facility, and a decrease in capital expenditures of $23.

Total capital expenditures are anticipated to be approximately 5% of sales in 2026 including continued growth investments in the Engine Products segment.

Recently Adopted and Recently Issued Accounting Guidance

See Note B to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q.

34

Forward-Looking Statements

This report contains (and oral communications made by Howmet may contain) statements that relate to future events and expectations and as such constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include those containing such words as “anticipates,” “believes,” “could,” “envisions,” “estimates,” “expects,” “forecasts,” “goal,” “guidance,” “intends,” “may,” “outlook,” “plans,” “projects,” “seeks,” “sees,” “should,” “targets,” “will,” “would,” or other words of similar meaning. All statements that reflect Howmet’s expectations, assumptions or projections about the future, other than statements of historical fact, are forward-looking statements, including, without limitation, statements, forecasts and outlook relating to the condition of markets; future financial results or operating performance; future strategic actions; Howmet’s strategies, outlook, and business and financial prospects; any future dividends, debt issuances, debt reduction and repurchases of its common stock; and statements regarding any acquisitions, including expected benefits. These statements reflect beliefs and assumptions that are based on Howmet’s perception of historical trends, current conditions and expected future developments, as well as other factors Howmet believes are appropriate in the circumstances. Forward-looking statements are not guarantees of future performance and are subject to risks, uncertainties, and changes in circumstances that are difficult to predict, which could cause actual results to differ materially from those indicated by these statements. Such risks and uncertainties include, but are not limited to: (a) deterioration in global economic and financial market conditions generally, or unfavorable changes in the markets served by Howmet, including due to escalating tariff and other trade policies and energy costs, and the resulting impacts on Howmet’s supply and distribution chains, as well as on market volatility and global trade generally; (b) the impact of potential cyber attacks and information technology or data security breaches; (c) the loss of significant customers or adverse changes in customers’ business or financial conditions; (d) manufacturing difficulties or other issues that impact product performance, quality or safety; (e) inability of suppliers to meet obligations due to supply chain disruptions or otherwise; (f) failure to attract and retain a qualified workforce and key personnel, labor disputes or other employee relations issues; (g) the inability to achieve anticipated or targeted financial performance, operations or competitiveness, or realization of expected benefits from acquisitions, including the effective integration of acquired businesses; (h) inability to meet increased demand, production targets or commitments; (i) competition from new product offerings, disruptive technologies or other developments; (j) geopolitical, economic, and regulatory risks relating to Howmet’s global operations, including geopolitical and diplomatic tensions, instabilities, conflicts and wars, as well as compliance with U.S. and foreign trade and tax laws, sanctions, embargoes and other regulations; (k) the outcome of contingencies, including legal proceedings, government or regulatory investigations, and environmental remediation; (l) failure to comply with government contracting regulations; (m) adverse changes in discount rates or investment returns on pension assets; and (n) the other risk factors summarized in Howmet’s Form 10-K for the year ended December 31, 2025 and other reports filed with the U.S. Securities and Exchange Commission. Market projections are subject to the risks discussed above and other risks in the market. Under its share repurchase program, the Company may repurchase shares from time to time, in amounts, at prices, and at such times as it deems appropriate, subject to market conditions, legal requirements and other considerations. The Company is not obligated to repurchase any specific number of shares or to do so at any particular time. The declaration of any future dividends is subject to the discretion and approval of the Board of Directors after the Board’s consideration of all factors it deems relevant and subject to applicable law. The Company may modify, suspend, or cancel its share repurchase program or any dividend policy in any manner and at any time that it may deem necessary or appropriate. Credit ratings are not a recommendation to buy or hold any Howmet Aerospace securities, and they may be revised or revoked at any time at the sole discretion of the credit rating organizations. The statements in this report are made as of the date of the filing of this report. Howmet disclaims any intention or obligation to update publicly any forward-looking statements, whether in response to new information, future events, or otherwise, except as required by applicable law.

Item 3. Quantitative and Qualitative Disclosures about Market Risk.

Not material.

Item 4. Controls and Procedures.

(a) Evaluation of Disclosure Controls and Procedures

The Company's Chief Executive Officer and Chief Financial Officer have evaluated the Company’s disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended, as of the end of the period covered by this report, and they have concluded that these controls and procedures are effective.

(b) Changes in Internal Control over Financial Reporting

There have been no changes in internal control over financial reporting during the second quarter of 2026 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

35

PART II – OTHER INFORMATION

Item 1. Legal Proceedings.

See Note Q to the Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q.

Item 1A. Risk Factors.

There have been no material changes from the risk factors previously disclosed in Part I, Item 1A, “Risk Factors” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

The following table presents information with respect to the Company’s repurchases of its common stock during the quarter ended June 30, 2026:

Period	Total Number of Shares Purchased	Average Price Paid Per Share(1)		Total Number of Shares Purchased as Part of Publicly Announced Repurchase Plans or Programs	Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (in millions)(1)(2)
April 1 - April 30, 2026	609,306	$	246.18	609,306	$	1,047
May 1 - May 31, 2026	293,962	$	258.53	293,962	$	971
June 1 - June 30, 2026	293,788	$	251.89	293,788	$	897
Total for quarter ended June 30, 2026	1,197,056	$	250.61	1,197,056

(1)Excludes commissions cost.

(2)The Company has a Share Repurchase Program (the “Share Repurchase Program”) under which the Company may repurchase shares by means of trading plans established from time to time in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, block trades, private transactions, open market repurchases and/or accelerated share repurchase agreements, or other derivative transactions. There is no stated expiration for the Share Repurchase Program. Under the Share Repurchase Program, the Company may repurchase shares from time to time, in amounts, at prices, and at such times as the Company deems appropriate, subject to market conditions, legal requirements and other considerations. The Company is not obligated to repurchase any specific number of shares or to do so at any particular time, and the Share Repurchase Program may be suspended, modified, or terminated at any time without prior notice. The Share Repurchase Program was authorized by the Company’s Board of Directors in August 2021 at $1,500 million, which was increased by the Board by $2,000 million in July 2024 to a total authorization of $3,500 million. As of August 3, 2026, the Company has approximately $697 million in Board authorization remaining available after giving effect to the additional $200 million share repurchases made in July 2026 at an average price per share of $276.61, which retired approximately 0.7 million additional shares.

36

Item 6. Exhibits.

31	Certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32	Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	Inline XBRL Taxonomy Extension Schema Document.
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104.	Cover Page Interactive Data File - the cover page from this Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, formatted in Inline XBRL (included within the Exhibit 101 attachments).

37

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Howmet Aerospace Inc.
August 6, 2026	/s/ Patrick Winterlich
Date	Patrick Winterlich
	Executive Vice President and
	Chief Financial Officer
	(Principal Financial Officer)
August 6, 2026	/s/ Barbara L. Shultz
Date	Barbara L. Shultz
	Vice President and Controller
	(Principal Accounting Officer)

38

EX-31

Exhibit 31

Certifications

I, John C. Plant, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Howmet Aerospace Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 6, 2026

/s/ John C. Plant

John C. Plant

Executive Chairman and Chief Executive Officer

I, Patrick Winterlich, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Howmet Aerospace Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 6, 2026

/s/ Patrick Winterlich

Patrick Winterlich

Executive Vice President and Chief Financial Officer

EX-32

Exhibit 32

Certification

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), each of the undersigned officers of Howmet Aerospace Inc., a Delaware corporation (the “Company”), does hereby certify that:

The Quarterly Report on Form 10-Q for the period ended June 30, 2026 (the “Form 10-Q”) of the Company fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:	August 6, 2026	/s/ John C. Plant
		John C. Plant
		Executive Chairman and Chief Executive Officer
Dated:	August 6, 2026	/s/ Patrick Winterlich
		Patrick Winterlich
		Executive Vice President and Chief Financial Officer

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

The foregoing certification is being furnished to the Securities and Exchange Commission as an exhibit to the Form 10-Q and shall not be considered filed as part of the Form 10-Q.

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Cover - shares	6 Months Ended
	Jun. 30, 2026	Aug. 03, 2026
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2026
Document Transition Report	false
Entity File Number	1-3610
Entity Registrant Name	HOWMET AEROSPACE INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	25-0317820
Entity Address, Address Line One	201 Isabella Street, Suite 200
Entity Address, City or Town	Pittsburgh
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15212-5872
City Area Code	412
Local Phone Number	553-1940
Title of 12(b) Security	Common Stock, par value $1.00 per share
Trading Symbol	HWM
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		398,801,399
Amendment Flag	false
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q2
Entity Central Index Key	0000004281
Current Fiscal Year End Date	--12-31

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Statement of Consolidated Operations (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Statement [Abstract]
Sales (D)	$ 2,547	$ 2,053	$ 4,860	$ 3,995
Cost of goods sold (exclusive of expenses below)	1,596	1,365	3,055	2,655
Selling, general administrative, and other expenses	148	89	259	174
Research and development expenses	8	9	17	17
Provision for depreciation and amortization	84	69	158	138
Restructuring and other credits (E)	0	0	(93)	(4)
Operating income	711	521	1,464	1,015
Interest expense, net	51	38	94	77
Other expense, net (G)	11	14	13	23
Income before income taxes	649	469	1,357	915
Provision for income taxes (H)	115	62	243	164
Net income	534	407	1,114	751
Amounts Attributable to Howmet Aerospace Common Shareholders (I):
Net income, Basic	534	407	1,114	750
Net income, Diluted	$ 534	$ 407	$ 1,114	$ 750
Earnings per share:
Basic (in usd per share)	$ 1.33	$ 1.01	$ 2.78	$ 1.85
Diluted (in usd per share)	$ 1.33	$ 1.00	$ 2.77	$ 1.84
Average Shares Outstanding (I):
Basic (in shares)	400	404	400	404
Diluted (in shares)	402	406	402	407

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Statement of Consolidated Comprehensive Income (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Statement of Comprehensive Income [Abstract]
Net income	$ 534	$ 407	$ 1,114	$ 751
Other comprehensive (loss) income, net of tax (J):
Change in unrecognized net actuarial loss and prior service cost related to pension and other postretirement benefits	4	3	8	6
Foreign currency translation adjustments	(10)	117	(42)	162
Net change in unrecognized (losses) gains on cash flow hedges	0	(39)	10	(39)
Total Other comprehensive (loss) income, net of tax	(6)	81	(24)	129
Comprehensive income	$ 528	$ 488	$ 1,090	$ 880

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Consolidated Balance Sheet (unaudited) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 563	$ 742
Receivables from customers, less allowances of $— in both 2026 and 2025 (K)	1,040	779
Inventories (L)	2,183	1,849
Prepaid expenses and other current assets	407	409
Total current assets	4,193	3,779
Properties, plants, and equipment, net (M)	2,817	2,593
Goodwill	5,084	4,022
Deferred income taxes	48	40
Intangibles, net	869	457
Other noncurrent assets (N)	240	288
Total assets	13,251	11,179
Current liabilities:
Accounts payable, trade (Q)	1,149	845
Accrued compensation and retirement costs	304	343
Taxes, including income taxes (H)	87	77
Accrued interest payable	62	47
Deferred revenue	119	147
Other current liabilities (N)(Q)	134	121
Long-term debt due within one year (O)	1	191
Short-term borrowings (O)	450	0
Total current liabilities	2,306	1,771
Long-term debt, less amount due within one year (O)(P)	4,050	2,859
Accrued pension benefits (F)	511	546
Accrued other postretirement benefits (F)	34	38
Other noncurrent liabilities and deferred credits (N)	618	612
Total liabilities	7,519	5,826
Contingencies and commitments (Q)
Howmet Aerospace shareholders’ equity:
Common stock	400	402
Additional capital	1,919	2,531
Retained earnings	5,110	4,093
Accumulated other comprehensive loss (J)	(1,697)	(1,673)
Total equity	5,732	5,353
Total liabilities and equity	$ 13,251	$ 11,179

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Consolidated Balance Sheet (unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Statement of Financial Position [Abstract]
Receivables from customers, allowances	$ 0	$ 0

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Statement of Consolidated Cash Flows (unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Operating activities
Net income	$ 1,114	$ 751
Adjustments to reconcile net income to cash provided from operations:
Depreciation and amortization	158	138
Deferred income taxes	9	12
Restructuring and other credits	(93)	(4)
Net realized and unrealized losses	8	11
Net periodic pension cost (F)	23	21
Stock-based compensation	57	39
Other	5	2
Changes in assets and liabilities, excluding effects of acquisitions, divestitures, and foreign currency translation adjustments:
Increase in receivables (K)	(196)	(170)
Increase in inventories (L)	(165)	(81)
(Increase) decrease in prepaid expenses and other current assets	(53)	6
Increase in accounts payable, trade	279	74
Decrease in accrued expenses	(59)	(47)
Decrease in taxes, including income taxes	(27)	(20)
Pension contributions	(21)	(15)
Increase in noncurrent assets	(7)	(2)
Increase (decrease) in noncurrent liabilities	4	(16)
Cash provided from operations	1,036	699
Financing Activities
Net change in commercial paper (O)	450	0
Additions to debt (O)	1,200	0
Repurchases and payments on debt (O)	(186)	(77)
Debt issuance costs (O)	(12)	0
Repurchases of common stock	(600)	(300)
Dividends paid to shareholders	(97)	(83)
Taxes paid for net share settlement of equity awards	(65)	(44)
Other	(5)	(2)
Cash provided from (used for) financing activities	685	(506)
Investing Activities
Capital expenditures (D)	(198)	(221)
Acquisitions, net of cash acquired (C)	(1,929)	0
Proceeds from the sale of assets and businesses (C)	225	8
Other	2	1
Cash used for investing activities	(1,900)	(212)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0	0
Net change in cash, cash equivalents and restricted cash	(179)	(19)
Cash, cash equivalents and restricted cash at beginning of period	743	565
Cash, cash equivalents and restricted cash at end of period	$ 564	$ 546

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Statement of Changes in Consolidated Equity (unaudited) - USD ($) $ in Millions	Total	Preferred Class A	Preferred stock	Common stock	Additional capital	Retained earnings	Retained earnings Preferred Class A	Accumulated other comprehensive loss
Balance at beginning of period at Dec. 31, 2024	$ 4,554		$ 55	$ 405	$ 3,206	$ 2,766		$ (1,878)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	751					751
Other comprehensive income (loss)	129							129
Cash dividends declared:
Preferred		$ (1)					$ (1)
Common	(82)					(82)
Repurchase and retirement of common stock	(302)			(2)	(300)
Stock-based compensation	39				39
Common stock issued: compensation plans	(46)			1	(47)
Balance at end of period at Jun. 30, 2025	5,042		55	404	2,898	3,434		(1,749)
Balance at beginning of period at Mar. 31, 2025	4,792		55	404	3,095	3,068		(1,830)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	407					407
Other comprehensive income (loss)	81							81
Cash dividends declared:
Preferred		$ 0
Common	(41)					(41)
Repurchase and retirement of common stock	(176)			(1)	(175)
Stock-based compensation	25				25
Common stock issued: compensation plans	(46)			1	(47)
Balance at end of period at Jun. 30, 2025	5,042		55	404	2,898	3,434		(1,749)
Balance at beginning of period at Dec. 31, 2025	5,353		0	402	2,531	4,093		(1,673)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,114					1,114
Other comprehensive income (loss)	(24)							(24)
Cash dividends declared:
Common	(97)					(97)
Repurchase and retirement of common stock	(605)			(2)	(603)
Stock-based compensation	57				57
Common stock issued: compensation plans	(66)				(66)
Balance at end of period at Jun. 30, 2026	5,732		0	400	1,919	5,110		(1,697)
Balance at beginning of period at Mar. 31, 2026	5,522		0	401	2,187	4,625		(1,691)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	534					534
Other comprehensive income (loss)	(6)							(6)
Cash dividends declared:
Common	(49)					(49)
Repurchase and retirement of common stock	(303)			(1)	(302)
Stock-based compensation	36				36
Common stock issued: compensation plans	(2)				(2)
Balance at end of period at Jun. 30, 2026	$ 5,732		$ 0	$ 400	$ 1,919	$ 5,110		$ (1,697)

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Statement of Changes in Consolidated Equity (unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Common (in usd per share)	$ 0.12	$ 0.10	$ 0.24	$ 0.20
Preferred Class A
Preferred (in usd per share)		$ 0.9375		$ 1.8750

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Basis of Presentation

6 Months Ended

Jun. 30, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The interim Consolidated Financial Statements of Howmet Aerospace Inc. and its subsidiaries (“Howmet” or the “Company” or “we” or “our”) are unaudited. These Consolidated Financial Statements include all adjustments, consisting only of normal recurring adjustments, considered necessary by management to fairly state the Company’s results of operations, financial position, and cash flows. The results reported in these Consolidated Financial Statements are not necessarily indicative of the results that may be expected for the entire year. The 2025 year-end balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America (“GAAP”). This Form 10-Q report should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2025 (the “Form 10-K”), which includes all disclosures required by GAAP, and with Exhibit 99.1 to the Company’s Current Report on Form 8-K dated May 28, 2026, which provides recast historical segment information. Certain amounts in previously issued financial statements were reclassified to conform to the current period presentation.

In the six months ended June 30, 2026, the Company derived approximately 68% of its revenue from products sold to the commercial and defense aerospace markets. The timing and level of future aircraft builds by original equipment manufacturers (“OEMs”) are subject to changes and uncertainties, including but not limited to geopolitical tensions or volatility in global energy and raw material markets, which may cause our future results to differ from prior periods due to changes in product mix in certain segments.

The timing, extent, application, and level of tariffs by various governments and our ability to recover tariffs are subject to changes and uncertainties in all segments. While the tariff situation remains fluid, we expect to pass along the costs associated with tariffs to our customers in the form of a cost pass through mechanism. There may be a delay between an increase in our costs and our ability to recover the higher costs that could impact our margins.

The preparation of the Consolidated Financial Statements of the Company in conformity with GAAP requires management to make certain judgments, estimates, and assumptions. These estimates are based on historical experience and, in some cases, assumptions based on current and future market expectations, including considerations relating to changes in the aerospace industry. The impact of these changes, including the macroeconomic considerations, remains highly uncertain. Management has made its best estimates using all relevant information available at the time, but it is possible that our estimates will differ from our actual results and affect the Consolidated Financial Statements in future periods and potentially require adverse adjustments to the recoverability of goodwill, intangible and long-lived assets, the realizability of deferred tax assets and other judgments and estimations and assumptions.

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Recently Issued Accounting Guidance

6 Months Ended

Jun. 30, 2026

Accounting Policies [Abstract]

Recently Issued Accounting Guidance

Recently Issued Accounting Guidance

Issued

In May 2026, the Financial Accounting Standards Board (“FASB”) issued guidance to improve the financial accounting for and disclosure of environmental credits and environmental credit obligations. These changes become effective for fiscal years beginning after December 15, 2027 for interim and annual reporting periods. Management is currently evaluating the impact of these changes on the Consolidated Financial Statements.

In September 2025, the FASB issued guidance to simplify the requirements for the capitalization of costs surrounding internally-developed software. These changes become effective for fiscal years beginning after December 15, 2027 for interim and annual reporting periods. Management is currently evaluating the impact of these changes on the Consolidated Financial Statements.

In November 2024, the FASB issued guidance to improve disclosures about an entity’s expenses including more detailed information about the components of expenses in commonly presented expense captions. These changes become effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Management is currently evaluating the impact of these changes on the Consolidated Financial Statements.

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Acquisitions and Divestitures

6 Months Ended

Jun. 30, 2026

Acquisitions And Divestitures [Abstract]

Acquisitions and Divestitures

Acquisitions and Divestitures

Acquisitions

On April 6, 2026, Howmet completed its previously announced stock purchase of Consolidated Aerospace Manufacturing, LLC (“Consolidated Aerospace Manufacturing” or “CAM”), a wholly-owned subsidiary of Stanley Black & Decker, Inc. (“Stanley Black & Decker”), for a cash purchase price of approximately $1,812, net of cash and cash equivalents acquired of $1, subject to customary adjustments (the “CAM Acquisition”). CAM is a global aerospace manufacturer focused on highly-engineered, mission-critical parts used in aerospace markets, such as fasteners, fluid fittings and connectors, and other engineered products. This acquisition expands Howmet’s aerospace fastening systems portfolio and increases exposure to key aircraft and defense programs. Howmet financed the CAM Acquisition through utilizing a variety of financing sources, which include the notes issued in March 2026, borrowings under its commercial paper program (See Note O), and cash on hand. A portion of the goodwill relating to this transaction will be deductible for income tax purposes.

On February 6, 2026, the Company acquired all of the stock of Brunner Manufacturing Co. Inc. (“Brunner”), a privately-held manufacturer of high-quality fastener products in Wisconsin, for an all-cash purchase price of approximately $120, net of cash and cash equivalents acquired of $2.

The Company’s preliminary allocation of the purchase price for both the CAM and Brunner acquisitions, based upon the estimated fair value of assets acquired and liabilities assumed, is as follows:

Assets Acquired
Receivables from customers	$	83
Inventories	181
Properties, plants, and equipment	204
Other noncurrent assets	41
Intangible assets	425
Total Assets Acquired	934
Liabilities Assumed
Accounts payable, trade	$	40
Accrued compensation and retirement costs	14
Other current liabilities	10
Other noncurrent liabilities	23
Total Liabilities Assumed	87
Net Assets Acquired	$	847
Goodwill	$	1,082

The final allocations of purchase price will be based on management’s best estimates. Valuations of the assets acquired, other studies related to potential environmental and contingent liabilities, and other liabilities assumed may result in the identification of other intangible assets or liabilities. The valuations are expected to be completed by the end of 2026. The CAM and Brunner acquisitions have been included in the operations of the Fastening Systems segment, with revenue primarily included within Aerospace - Commercial, Aerospace - Defense, and Other in end-market revenue (See Note D). The aforementioned acquisitions’ combined third-party sales were approximately 2% of the Company’s consolidated sales and approximately 1% of consolidated net income from the respective acquisition dates through June 30, 2026.

Divestitures

On March 31, 2026, the Company completed the sale of its disk forging facility in Savannah, Georgia for $230 (of which approximately $225 was received in the first quarter of 2026, with the remainder expected in the fourth quarter of 2026). This resulted in a gain of $93 in the first quarter of 2026 that was recorded in Restructuring and other credits in the Statement of Consolidated Operations. This business had net assets of approximately $92, and the sale resulted in a reduction of goodwill in the Engineered Structures reporting unit of approximately $41. The sale remains subject to certain post-closing adjustments. This business was reclassified to assets and liabilities of operations held for sale, primarily included in Prepaid expenses and other current assets in the fourth quarter of 2025 and generated sales of approximately $130 for the year ended December 31, 2025 and had approximately 160 employees at the time of divestiture.

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Segment Information

6 Months Ended

Jun. 30, 2026

Segment Reporting [Abstract]

Segment Information

Segment Information

Howmet is a global leader in lightweight metals engineering and manufacturing. Howmet’s innovative, multi-material products, which include nickel, titanium, aluminum, and cobalt, are used worldwide in the aerospace (commercial and defense), commercial transportation, gas turbines, and other markets. Segment performance under Howmet’s management reporting system is evaluated based on Segment Adjusted EBITDA. The Company’s Chief Executive Officer, who has been determined to be our Chief Operating Decision Maker (“CODM”), believes that Segment Adjusted EBITDA provides information with respect to the Company’s operating performance and the Company’s ability to meet its financial obligations. Howmet’s definition of Segment Adjusted EBITDA is defined as Operating Income excluding Restructuring and other credits, Provision for depreciation and amortization, and Special items. Special items, including Restructuring and other credits, are excluded from Segment Adjusted EBITDA. The Company’s CODM considers forecast-to-actual variances for Segment Adjusted EBITDA when allocating resources across the Company’s reportable segments. Segment Adjusted EBITDA may not be comparable to similarly titled measures of other companies. Differences between the total segment and consolidated totals are in Corporate.

In the first quarter of 2026, the Company’s CODM reorganized Howmet’s segments by moving a titanium alloy location from Engine Products to Engineered Structures as it better aligns with the operations of the Engineered Structures segment. The comparable periods of Engine Products and Engineered Structures have been recast to reflect the new alignment. The recasting had no impact on the Company’s consolidated results, financial position or cash flows.

Howmet’s operations consist of four worldwide reportable segments as follows:

Engine Products

Engine Products produces investment castings, including airfoils, and seamless rolled rings primarily for aircraft engines and gas turbine applications. Engine Products produces rotating parts, as well as structural parts.

Fastening Systems

Fastening Systems produces aerospace fastening systems, as well as commercial transportation, industrial, and other fasteners. The business’s high-tech, multi-material fastening systems are found nose to tail on aircraft and aero engines. Fastening Systems’ products are also critical components of commercial transportation vehicles and construction, industrial, and renewable energy equipment.

Engineered Structures

Engineered Structures produces titanium ingots and mill products for aerospace and defense applications and is vertically integrated to produce titanium forgings, titanium extrusions, and machining services for airframe, wing, aero-engine, and landing gear components. Engineered Structures also produces aluminum forgings and aluminum machined components and assemblies for aerospace and defense applications.

Forged Wheels

Forged Wheels provides forged aluminum wheels and related products for heavy-duty trucks and the commercial transportation market.

The operating results of the Company’s reportable segments were as follows:

	Engine Products		Fastening Systems		Engineered Structures		Forged Wheels		Total Segment
Second quarter ended June 30, 2026
Sales:
Third-party sales	$	1,373	$	589	$	269	$	316	$	2,547
Inter-segment sales	3		—		8		—		11
Total sales	$	1,376	$	589	$	277	$	316	$	2,558
Expenses:
Segment Adjusted cost of goods sold(1)	$	831	$	373	$	204	$	216	$	1,624
Other segment items(2)	28		39		9		12		88
Profit and loss:
Segment Adjusted EBITDA	$	517	$	177	$	64	$	88	$	846
Provision for depreciation and amortization	42		20		11		10		83
Other:
Capital expenditures	$	77	$	11	$	8	$	4	$	100
Second quarter ended June 30, 2025
Sales:
Third-party sales	$	1,038	$	431	$	308	$	276	$	2,053
Inter-segment sales	3		—		8		—		11
Total sales	$	1,041	$	431	$	316	$	276	$	2,064
Expenses:
Segment Adjusted cost of goods sold(1)	$	671	$	276	$	239	$	189	$	1,375
Other segment items(2)	27		29		9		11		76
Profit and loss:
Segment Adjusted EBITDA	$	343	$	126	$	68	$	76	$	613
Provision for depreciation and amortization	35		12		10		10		67
Restructuring and other charges (credits)	—		1		—		(1)		—
Other:
Capital expenditures	$	74	$	9	$	7	$	8	$	98
	Engine Products		Fastening Systems		Engineered Structures		Forged Wheels		Total Segment
Six months ended June 30, 2026
Sales:
Third-party sales	$	2,626	$	1,060	$	563	$	611	$	4,860
Inter-segment sales	5		—		16		—		21
Total sales	$	2,631	$	1,060	$	579	$	611	$	4,881
Expenses:
Segment Adjusted cost of goods sold(1)	$	1,596	$	662	$	430	$	411	$	3,099
Other segment items(2)	60		71		19		22		172
Profit and loss:
Segment Adjusted EBITDA	$	975	$	327	$	130	$	178	$	1,610
Provision for depreciation and amortization	80		33		21		21		155
Restructuring and other credits	—		—		(93)		—		(93)
Other:
Capital expenditures	$	136	$	28	$	20	$	7	$	191
Total assets	5,777		4,756		1,277		785		12,595

Six months ended June 30, 2025
Sales:
Third-party sales	$	2,012	$	843	$	612	$	528	$	3,995
Inter-segment sales	5		—		15		—		20
Total sales	$	2,017	$	843	$	627	$	528	$	4,015
Expenses:
Segment Adjusted cost of goods sold(1)	$	1,304	$	532	$	475	$	363	$	2,674
Other segment items(2)	52		58		17		21		148
Profit and loss:
Segment Adjusted EBITDA	$	661	$	253	$	135	$	144	$	1,193
Provision for depreciation and amortization	68		24		23		20		135
Restructuring and other charges (credits)	—		1		(4)		(1)		(4)
Other:
Capital expenditures	$	159	$	19	$	13	$	23	$	214
Total assets	5,512		2,787		1,374		748		$	10,421

(1)Segment Adjusted cost of goods sold is exclusive of Provision for depreciation and amortization, Restructuring and other credits, and Corporate expenses.

(2)Other segment items includes Selling, general administrative, and other expenses, and Research and development expenses; exclusive of Provision for depreciation and amortization, and Restructuring and credits.

The following table reconciles Total Segment Adjusted EBITDA to Income before income taxes. Differences between the total segment and consolidated totals are in Corporate.

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Total Segment Adjusted EBITDA	$	846	$	613	$	1,610	$	1,193
Segment provision for depreciation and amortization	(83)		(67)		(155)		(135)
Unallocated amounts:
Restructuring and other credits	—		—		93		4
Corporate expense(1)	(52)		(25)		(84)		(47)
Operating income	$	711	$	521	$	1,464	$	1,015
Interest expense, net	(51)		(38)		(94)		(77)
Other expense, net	(11)		(14)		(13)		(23)
Income before income taxes	$	649	$	469	$	1,357	$	915

(1)    Corporate expense includes selling, general administrative and other expenses, costs of corporate headquarters, acquisition and acquisition-related costs, costs associated with closures, supply chain disruptions, and other items.

The following table reconciles total segment capital expenditures with Capital expenditures as presented in the Statement of Consolidated Cash Flows.

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Total segment capital expenditures	$	100	$	98	$	191	$	214
Corporate	4		4		7		7
Capital expenditures	$	104	$	102	$	198	$	221

The following table disaggregates segment revenue by major market served. Differences between the total segment and consolidated totals are in Corporate.

	Engine Products		Fastening Systems		Engineered Structures		Forged Wheels		Total Segment
Second quarter ended June 30, 2026
Aerospace - Commercial	$	770	$	412	$	177	$	—	$	1,359
Aerospace - Defense	250		64		75		—		389
Commercial Transportation	—		56		—		316		372
Gas Turbines	321		—		—		—		321
Other	32		57		17		—		106
Total end-market revenue	$	1,373	$	589	$	269	$	316	$	2,547
Second quarter ended June 30, 2025
Aerospace - Commercial	$	562	$	297	$	201	$	—	$	1,060
Aerospace - Defense	214		44		94		—		352
Commercial Transportation	—		56		—		276		332
Gas Turbines	233		—		—		—		233
Other	29		34		13		—		76
Total end-market revenue	$	1,038	$	431	$	308	$	276	$	2,053
Six months ended June 30, 2026
Aerospace - Commercial	$	1,472	$	734	$	368	$	—	$	2,574
Aerospace - Defense	488		115		152		—		755
Commercial Transportation	—		107		—		611		718
Gas Turbines	605		—		—		—		605
Other	61		104		43		—		208
Total end-market revenue	$	2,626	$	1,060	$	563	$	611	$	4,860
Six months ended June 30, 2025
Aerospace - Commercial	$	1,097	$	572	$	407	$	—	$	2,076
Aerospace - Defense	425		86		174		—		685
Commercial Transportation	—		109		—		528		637
Gas Turbines	437		—		—		—		437
Other	53		76		31		—		160
Total end-market revenue	$	2,012	$	843	$	612	$	528	$	3,995

The Company derived 68% and 69% of its revenue from the aerospace (commercial and defense) markets for the six months ended June 30, 2026 and 2025, respectively.

GE Aerospace and RTX Corporation represented approximately 14% and 10%, respectively, of the Company’s third-party sales in the six months ended June 30, 2026. RTX Corporation and GE Aerospace represented approximately 11% and 10%, respectively, of the Company’s third-party sales in the six months ended June 30, 2025. These sales were primarily from the Engine Products segment.

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Restructuring and Other Credits

6 Months Ended

Jun. 30, 2026

Restructuring and Related Activities [Abstract]

Restructuring and Other Credits

Restructuring and Other Credits

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Layoff costs	$	—	$	3	$	—	$	3
Reversals of previously recorded layoff reserves	—		(1)		—		(2)
Net gains related to divestitures of assets and businesses (C)	—		(2)		(93)		(5)
Total restructuring and other credits	$	—	$	—	$	(93)	$	(4)

In the second quarter of 2026, the Company recorded Restructuring and other charges of less than $1.

In the six months ended June 30, 2026, the Company recorded Restructuring and other credits of $93, which were primarily due to a gain on the sale of its disk forging facility in Savannah, Georgia within Engineered Structures of $93 in the first quarter of 2026.

In the second quarter of 2025, the Company recorded Restructuring and other charges of less than $1, which were primarily due to a charge for layoff costs of $3, including the separation of 119 employees (79 in Fastening Systems and 40 in Forged Wheels), partially offset by a gain on the sale of assets at a previously closed facility in Forged Wheels of $2 and a reversal of $1 for layoff reserves related to a prior period.

In the six months ended June 30, 2025, the Company recorded Restructuring and other credits of $4, which were primarily due to a gain on the sale of assets at a small U.K. manufacturing facility in Engineered Structures of $3, a gain on the sale of assets at a previously closed facility in Forged Wheels of $2, and a reversal of $2 for layoff reserves related to a prior period, partially offset by a charge for layoff costs of $3.

	Layoff costs		Other exit costs		Total
Reserve balances at December 31, 2025	$	1	$	—	$	1
Restructuring credits	—		(93)		(93)
Other(1)	—		93		93
Reserve balances at June 30, 2026	$	1	$	—	$	1

(1)In the six months ended June 30, 2026, other for other exit costs were primarily due to a gain on the sale of the disk forging facility in Savannah, Georgia within Engineered Structures of $93.

The remaining reserves as of June 30, 2026 are expected to be paid in cash in 2026 and 2027.

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Retirement and Other Postretirement Benefits

6 Months Ended

Jun. 30, 2026

Retirement Benefits [Abstract]

Retirement and Other Postretirement Benefits

Retirement and Other Postretirement Benefits

The components of net periodic cost (benefit) were as follows:

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Pension benefits
Service cost	$	1	$	—	$	1	$	1
Interest cost	15		19		31		38
Expected return on plan assets	(13)		(16)		(27)		(33)
Recognized net actuarial loss	9		8		18		15
Net periodic cost(1)	$	12	$	11	$	23	$	21
Other postretirement benefits
Service cost	$	—	$	—	$	—	$	—
Interest cost	—		1		1		2
Recognized net actuarial gain	(2)		(2)		(4)		(4)
Amortization of prior service benefit	(2)		(3)		(4)		(5)
Net periodic benefit(1)	$	(4)	$	(4)	$	(7)	$	(7)

(1)Service cost was included within Cost of goods sold; all other cost components were recorded in Other expense, net in the Statement of Consolidated Operations.

For the second quarter and six months ended June 30, 2026, Howmet’s combined pension contributions and other postretirement benefit payments were approximately $24 and $27, respectively. For the second quarter and six months ended June 30, 2025, Howmet’s combined pension contributions and other postretirement benefit payments were approximately $18 and $19, respectively.

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Other Expense, Net

6 Months Ended

Jun. 30, 2026

Other Income and Expenses [Abstract]

Other Expense, Net

Other Expense, Net

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Non-service costs - pension and other postretirement benefits (F)	$	7	$	7	$	15	$	13
Interest income	(7)		(4)		(17)		(8)
Foreign currency losses (gains), net	1		(3)		2		(3)
Net realized and unrealized losses	4		6		8		11
Deferred compensation	7		8		6		10
Other, net	(1)		—		(1)		—
Total other expense, net	$	11	$	14	$	13	$	23

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Income Taxes

6 Months Ended

Jun. 30, 2026

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company’s year-to-date tax provision is comprised of the most recent estimated annual effective tax rate applied to year-to-date, pre-tax ordinary income. The tax impacts of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are recorded discretely in the interim period in which they occur. In addition, the tax provision is adjusted for the interim period impact of non-benefited, pre-tax losses.

The estimated annual effective tax rate, before discrete items, applied to ordinary income was 20.9% in the second quarter and six months ended June 30, 2026, and 20.8% in the second quarter and six months ended June 30, 2025.

The 2026 rate was lower than the U.S. federal statutory rate of 21% primarily due to a U.S. deduction on Foreign-Derived Deduction Eligible Income (“FDDEI”) formerly known as Foreign-Derived Intangible Income (“FDII”), and a net benefit related to U.S. federal and state research and development (“R&D”) credits, partially offset by incremental state income tax, nondeductible expenses, and foreign earnings subject to tax in jurisdictions with tax rates higher than the U.S. federal statutory rate of 21%. The 2025 rate was lower than the U.S. federal statutory rate of 21% primarily due to a U.S. deduction on FDII, a net benefit related to U.S. federal and state R&D credits, and a U.S. tax benefit recognized for foreign tax credits, partially offset by incremental state income tax, additional U.S. tax on Global Intangible Low-Taxed Income (“GILTI”) and other foreign earnings, nondeductible expenses, and foreign earnings subject to tax in jurisdictions with tax rates higher than the U.S. federal statutory rate of 21%. The 2026 rate is consistent with the 2025 rate.

For the second quarter of 2026 and 2025, the tax rate including discrete items was 17.7% and 13.2%, respectively. In the second quarter of 2026, the Company recorded a discrete net tax benefit of $20 attributable to a benefit to release a valuation allowance related to U.S. foreign tax credits of $22, a benefit to release a valuation allowance related to U.S. state tax losses of $10, a benefit to release a tax reserve in Germany of $3, and an excess tax benefit for stock compensation of $1, reduced by a charge to establish an international withholding tax reserve of $16. In the second quarter of 2025, the Company recorded a discrete net tax benefit of $35 attributable to benefits related to U.S. tax accounting method changes for the deduction of certain prior period transaction and other costs of $17, an excess benefit for stock compensation of $13, and a net benefit related to U.S. federal and state R&D credits claimed for prior years of $5.

For both the six months ended June 30, 2026 and June 30, 2025, the tax rate including discrete items was 17.9%. In the six months ended June 30, 2026, the Company recorded a discrete net tax benefit of $41 attributable to a benefit to release a valuation allowance related to U.S. foreign tax credits of $22, an excess tax benefit for stock compensation of $22, a benefit to release a valuation allowance related to U.S. state tax losses of $10, and a benefit to release a tax reserve in Germany of $3, reduced by a charge to establish an international withholding tax reserve of $16. In the six months ended June 30, 2025, the Company recorded a discrete net tax benefit of $26 attributable to benefits related to U.S. tax accounting method changes for the deduction of certain prior period transaction and other costs of $17, an excess benefit for stock compensation of $14, and a net benefit related to U.S. federal and state R&D credits claimed for prior years of $5, reduced by a net charge related to the expiration of a tax holiday in China of $6, a charge for a tax reserve established in Germany of $2, and a net charge for other small items of $2.

The tax provision was comprised of the following:

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Pre-tax income at estimated annual effective income tax rate before discrete items	$	135	$	97	$	284	$	190
Other discrete items	(20)		(35)		(41)		(26)
Provision for income taxes	$	115	$	62	$	243	$	164

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Earnings Per Share and Common Stock

6 Months Ended

Jun. 30, 2026

Earnings Per Share [Abstract]

Earnings Per Share and Common Stock

Earnings Per Share and Common Stock

Basic earnings per share (“EPS”) amounts are computed by dividing earnings, after the deduction of preferred stock dividends declared, by the average number of common shares outstanding. Diluted EPS amounts assume the issuance of common stock for all potentially dilutive share equivalents outstanding.

The information used to compute basic and diluted EPS attributable to Howmet common shareholders was as follows (shares in millions in the table below):

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Net income	$	534	$	407	$	1,114	$	751
Less: preferred stock dividends declared	—		—		—		1
Net income available to Howmet Aerospace common shareholders - basic and diluted	$	534	$	407	$	1,114	$	750
Average shares outstanding - basic	400		404		400		404
Effect of dilutive securities:
Stock and performance awards	2		2		2		3
Average shares outstanding - diluted	402		406		402		407

There were no shares relating to outstanding stock options excluded from the calculation of average shares outstanding - diluted for the second quarter and six months ended June 30, 2026 and 2025.

Common stock outstanding as of June 30, 2026 and 2025 was 400 million and 404 million, respectively. Howmet redeemed all outstanding shares of its $3.75 Cumulative Class A Preferred Stock on December 17, 2025. There is no preferred stock outstanding as of June 30, 2026.

The Company has a Share Repurchase Program (the “Share Repurchase Program”) under which the Company may repurchase shares by means of trading plans established from time to time in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, block trades, private transactions, open market repurchases and/or accelerated share repurchase agreements, or other derivative transactions. There is no stated expiration for the Share Repurchase Program. Under the Share Repurchase Program, the Company may repurchase shares from time to time, in amounts, at prices, and at such times as the Company deems appropriate, subject to market conditions, legal requirements and other considerations. The Company is not obligated to repurchase any specific number of shares or to do so at any particular time, and the Share Repurchase Program may be suspended, modified, or terminated at any time without prior notice.

The following table provides details for share repurchases made for the periods presented:

	Number of shares(1)	Average price per share(2)		Total
Q1 2026 open market repurchase	1,301,914	$	230.43	$	300
Q2 2026 open market repurchase	1,197,056	$	250.61	$	300
2026 open market repurchases as of June 30, 2026	2,498,970	$	240.10	$	600
Q1 2025 open market repurchase	1,006,102	$	124.24	$	125
Q2 2025 open market repurchase	1,229,313	$	142.36	$	175
2025 open market repurchases as of June 30, 2025	2,235,415	$	134.20	$	300

(1)All of the shares repurchased have been retired.

(2)Excludes commissions cost.

The Share Repurchase Program was authorized by the Company’s Board of Directors in August 2021 at $1,500, which was increased by $2,000 by the Board in July 2024 to a total authorization of $3,500. As of August 3, 2026, the Company has approximately $697 in Board authorization remaining available after giving effect to the additional $200 share repurchases made in July 2026 at an average price per share of $276.61, which retired approximately 0.7 million additional shares.

As average shares outstanding are used in the calculation for both basic and diluted EPS, the full impact of share repurchases and issuances is not fully realized in EPS in the period of repurchase or issuance since share activity may occur at varying points during a period.

For excise tax on net repurchases, the Company recorded $3 in the second quarter ended June 30, 2026 and $5 in the six months ended June 30, 2026 and $1 in the second quarter and $2 in the six months ended June 30, 2025 to additional capital.

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Accumulated Other Comprehensive Loss

6 Months Ended

Jun. 30, 2026

Equity [Abstract]

Accumulated Other Comprehensive Loss

Accumulated Other Comprehensive Loss

The following table details the activity of the three components that comprise Accumulated other comprehensive loss:

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Pension and other postretirement benefits (F)
Balance at beginning of period	$	(588)	$	(669)	$	(592)	$	(672)
Other comprehensive income:
Unrecognized net actuarial gain and prior service benefit	—		1		—		—
Tax benefit	—		—		—		1
Total Other comprehensive income before reclassifications, net of tax	—		1		—		1
Amortization of net actuarial loss and prior service benefit(1)	5		3		10		6
Tax expense(2)	(1)		(1)		(2)		(1)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(3)	4		2		8		5
Total Other comprehensive income	4		3		8		6
Balance at end of period	$	(584)	$	(666)	$	(584)	$	(666)
Foreign currency translation
Balance at beginning of period	$	(1,084)	$	(1,162)	$	(1,052)	$	(1,207)
Other comprehensive (loss) income(4)	(10)		117		(42)		162
Balance at end of period	$	(1,094)	$	(1,045)	$	(1,094)	$	(1,045)
Cash flow hedges
Balance at beginning of period	$	(19)	$	1	$	(29)	$	1
Other comprehensive (loss) income:
Net change from periodic revaluations(5)	1		(49)		14		(50)
Tax benefit (expense)	—		11		(3)		11
Total Other comprehensive income (loss) before reclassifications, net of tax	1		(38)		11		(39)
Net amount reclassified to earnings(6)	(1)		(2)		(1)		—
Tax benefit(2)	—		1		—		—
Total amount reclassified from Accumulated other comprehensive loss, net of tax(3)	(1)		(1)		(1)		—
Total Other comprehensive (loss) income	—		(39)		10		(39)
Balance at end of period	$	(19)	$	(38)	$	(19)	$	(38)
Accumulated other comprehensive loss	$	(1,697)	$	(1,749)	$	(1,697)	$	(1,749)

(1)These amounts were recorded in Other expense, net (See Note G) in the Statement of Consolidated Operations.

(2)These amounts were included in Provision for income taxes (See Note H) in the Statement of Consolidated Operations.

(3)A positive amount indicates a corresponding charge to earnings and a negative amount indicates a corresponding benefit to earnings.

(4)In all periods presented, no amounts were reclassified to earnings.

(5)Includes the change in the cross-currency swaps related to the 6.750% Bonds due 2028 and the 4.850% Notes due 2031 (See Note O). In all periods presented, no amounts related to the changes were reclassified to earnings. The cross-currency swaps were recorded in Other noncurrent assets and Other noncurrent liabilities and deferred credits respectively, in the Consolidated Balance Sheet.

(6)These amounts were recorded in Cost of goods sold in the Statement of Consolidated Operations

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Receivables

6 Months Ended

Jun. 30, 2026

Receivables [Abstract]

Receivables

Receivables

Sale of Receivables Programs

The Company maintains an accounts receivables securitization arrangement through a wholly-owned special purpose entity (“SPE”). The net cash funding from the sale of accounts receivable was neither a use of cash nor a source of cash for the second quarter or six months ended June 30, 2026 or June 30, 2025.

The accounts receivables securitization arrangement is one in which the Company, through an SPE, has a receivables purchase agreement (the “Receivables Purchase Agreement”) pursuant to which the SPE may sell certain receivables to financial institutions. On October 9, 2025, the Company extended the Receivables Purchase Agreement to the earlier of October 8, 2027 or a termination event. The Receivables Purchase Agreement contains customary representations and warranties, as well as affirmative and negative covenants. Pursuant to the Receivables Purchase Agreement, the Company does not maintain effective control over the transferred receivables, and therefore accounts for these transfers as sales of receivables. The Receivables Purchase Agreement also contains a provision that allows the Company to increase the facility limit to $325.

The facility limit under the Receivables Purchase Agreement was $250 as of both June 30, 2026 and December 31, 2025, of which $250 was drawn as of both June 30, 2026 and December 31, 2025. As collateral against the sold receivables, the SPE maintains a certain level of unsold receivables, which were $296 and $217 as of June 30, 2026 and December 31, 2025, respectively.

The Company sold $294 and $651 during the second quarter and six months ended June 30, 2026, respectively, and $359 and $829 during the second quarter and six months ended June 30, 2025, respectively, of its receivables without recourse and received cash funding under this program, resulting in derecognition of the receivables from the Company’s Consolidated Balance Sheet. Costs associated with the sales of receivables are reflected in the Company’s Statement of Consolidated Operations in Other expense, net for the periods in which the sales occur. Cash receipts from sold receivables under the Receivables Purchase Agreement are presented in changes in receivables within operating activities in the Statement of Consolidated Cash Flows.

Other Customer Receivable Sales

In the second quarter and six months ended June 30, 2026, the Company sold certain customers’ receivables without recourse of $348 and $671, respectively, in exchange for cash. In the second quarter and six months ended June 30, 2025, the Company sold certain customers’ receivables without recourse of $223 and $406, respectively, in exchange for cash. The Company has no continuing involvement in the aforementioned amounts sold or outstanding, resulting in the derecognition of the receivables from the Company’s Consolidated Balance Sheet. The net proceeds are presented in changes in receivables within operating activities in the Statement of Consolidated Cash Flows and the costs associated with the sales of receivables are reflected in the Company’s Statement of Consolidated Operations in Other expense, net for the periods in which the sales occur.

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Inventories

6 Months Ended

Jun. 30, 2026

Inventory Disclosure [Abstract]

Inventories

Inventories

	June 30, 2026		December 31, 2025
Finished goods	$	497	$	462
Work-in-process	1,070		885
Purchased raw materials	531		424
Operating supplies	85		78
Total inventories	$	2,183	$	1,849

As of June 30, 2026 and December 31, 2025, the portion of inventories valued on a last-in, first-out (“LIFO”) basis was $707 and $642, respectively. If valued on an average-cost basis, total inventories would have been $376 and $333 higher as of June 30, 2026 and December 31, 2025, respectively.

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Properties, Plants, and Equipment, net

6 Months Ended

Jun. 30, 2026

Property, Plant, and Equipment [Abstract]

Properties, Plants, and Equipment, net

Properties, Plants, and Equipment, net

	June 30, 2026		December 31, 2025
Land and land rights	$	113	$	85
Structures	1,179		1,134
Machinery and equipment	4,496		4,275
	5,788		5,494
Less: accumulated depreciation and amortization	3,330		3,236
	2,458		2,258
Construction work-in-progress	359		335
Properties, plants, and equipment, net	$	2,817	$	2,593

The Company had unpaid capital expenditures of $55, $101, and $85 as of June 30, 2026, December 31, 2025, and June 30, 2025, respectively, which results in cash outflows within investing activities in the Statement of Consolidated Cash Flows in subsequent periods.

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Leases

6 Months Ended

Jun. 30, 2026

Leases [Abstract]

Leases

Leases

Operating lease cost, which includes short-term leases and variable lease payments and approximates cash paid, was $20 and $18 in the second quarter of 2026 and 2025, respectively, and $39 and $35 in the six months ended June 30, 2026 and June 30, 2025.

Operating lease right-of-use assets and lease liabilities in the Consolidated Balance Sheet were as follows:

	June 30, 2026		December 31, 2025
Right-of-use assets classified in Other noncurrent assets	$	162	$	162
Current portion of lease liabilities classified in Other current liabilities	$	46	$	42
Long-term portion of lease liabilities classified in Other noncurrent liabilities and deferred credits	117		121
Total lease liabilities	$	163	$	163

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Debt

6 Months Ended

Jun. 30, 2026

Debt Disclosure [Abstract]

Debt

Debt

	June 30, 2026		December 31, 2025
JPY Term Loan Facility, due 2026(1)	$	—	$	191
6.750% Bonds, due 2028(2)	300		300
3.750% Notes, due 2028	400		—
3.000% Notes, due 2029	700		700
3.900% Notes, due 2029	300		—
4.850% Notes, due 2031(3)	500		500
4.550% Notes, due 2032	500		500
4.750% Notes, due 2036	500		—
5.950% Notes, due 2037	625		625
4.750% Iowa Finance Authority Loan, due 2042	250		250
Short-term borrowings	450		—
Other, net(4)	(24)		(16)
	4,501		3,050
Less: amounts due within one year	451		191
Total long-term debt	$	4,050	$	2,859

(1)On May 22, 2026, the Company completed the early prepayment of the remaining amount outstanding under the JPY Term Loan Facility. The Company had entered into an interest rate swap to exchange the floating interest rate of the JPY Term Loan Facility to a fixed interest rate of 1.794% as of December 31, 2025, based on the Company’s long-term debt ratings. This swap was settled upon the prepayment of the JPY Term Loan Facility with an impact to the Consolidated Financial Statements of less than $1.

(2)The Company entered into a cross-currency swap to synthetically convert the 6.750% Bonds due 2028 (the “2028 Bonds”) into a Japanese Yen liability of approximately ¥47,760 million with a fixed annual interest rate of 3.880%.

(3)The Company entered into a cross-currency swap to synthetically convert the 4.850% Notes due 2031 (the “2031 Notes”) into a Euro liability of approximately €458 million with a fixed annual interest rate of 3.720%.

(4)Includes unamortized debt discounts and unamortized debt issuance costs related to outstanding notes and bonds listed in the table above and various financing arrangements related to subsidiaries.

Debt

Term Loan Facility. The Company maintained a Japanese yen-denominated, senior unsecured term loan facility (the “JPY Term Loan Facility”). As of June 30, 2026 and December 31, 2025, the Company was in compliance with all applicable covenants under the JPY Term Loan Facility.

On May 22, 2026, the Company completed the early prepayment of the remaining outstanding principal amount under its JPY Term Loan Facility of ¥29,702 million (approximately $186) with cash on hand.

There were no amounts outstanding under the JPY Term Loan Facility as of June 30, 2026 and ¥29,702 million ($191) outstanding as of December 31, 2025.

Public Debt. On March 3, 2026 the Company completed the offerings of aggregate principal amounts of $400 of 3.750% Notes due 2028 (the “2028 Notes”), $300 of 3.900% Notes due 2029 (the “2029 Notes”) and $500 of 4.750% Notes due 2036 (the “2036 Notes”). The Company utilized the net proceeds of $1,193 from these debt issuances as part of the financing for the CAM Acquisition (see Note C).

On May 22, 2026, the Company entered into a cross-currency swap to synthetically convert the outstanding $300 aggregate principal amount of its 2028 Bonds into a Japanese Yen liability of approximately ¥47,760 million. The fixed interest rate on the Japanese Yen liability is 3.880% per annum. Amounts payable to holders of these bonds remain unchanged.

Short-term Borrowings

Commercial Paper. The Company maintains a $1,000 commercial paper program, under which $450 was outstanding with a weighted average interest rate of 4.018% as of June 30, 2026, and no amounts were outstanding as of December 31, 2025. The Company had no commercial paper borrowings with original maturities greater than 90 days in 2026 or 2025. Amounts outstanding under the commercial paper program are supported by the unused commitments under the Company’s $600 364-Day Revolving Credit Facility and $1,000 5-Year Revolving Credit Facility.

Credit Agreements

Credit Facilities. On February 9, 2026, the Company entered into the Third Amended and Restated Five-Year Revolving Credit Agreement (as so amended and restated, the “5-Year Revolving Credit Agreement”) and the 364-Day Revolving Credit Agreement (the “364-Day Revolving Credit Agreement”). The 364-Day Revolving Credit Agreement and the 5-Year Revolving Credit Agreement are jointly referred to as the “Revolving Credit Agreements.”

The 5-Year Revolving Credit Agreement provides a $1,000 senior unsecured revolving credit facility (the “5-Year Revolving Credit Facility”) that matures on February 7, 2031, unless extended or earlier terminated in accordance with the provisions of the 5-Year Revolving Credit Agreement. The Company may make two one-year extension requests during the term of the 5-Year Revolving Credit Facility, with any extension being subject to the lender consent requirements set forth in the 5-Year Revolving Credit Agreement. Subject to the terms and conditions of the 5-Year Revolving Credit Agreement, the Company may from time to time request increases in commitments under the 5-Year Revolving Credit Facility, not to exceed $500 in aggregate principal amount, and may also request the issuance of letters of credit, subject to a letter of credit sublimit of $500 of the 5-Year Revolving Credit Facility. Under the provisions of the 5-Year Revolving Credit Agreement, based on Howmet’s current long-term debt ratings, Howmet pays an annual fee of 0.090% of the total commitment to maintain the 5-Year Revolving Credit Facility.

The 364-Day Revolving Credit Agreement provides a $600 senior unsecured revolving credit facility (the “364-Day Revolving Credit Facility” and, together with the 5-Year Revolving Credit Facility, the “Revolving Credit Facilities”) that matures on February 8, 2027, unless extended or earlier terminated in accordance with the provisions of the 364-Day Revolving Credit Agreement. Under the provisions of the 364-Day Revolving Credit Agreement, based on Howmet’s current long-term debt ratings, Howmet pays an annual fee of 0.070% of the total commitment to maintain the 364-Day Revolving Credit Facility.

The Revolving Credit Facilities are unsecured and amounts payable under them will rank pari passu with all other unsecured, unsubordinated indebtedness of the Company. U.S. dollar denominated loans under the Revolving Credit Facilities will bear interest at a base rate, or a rate equal to the Term Secured Overnight Financing Rate (“SOFR”) plus adjustment and Euro-denominated loans will bear interest at the Euro inter-bank offered rate (“EURIBOR”), plus in each case, an applicable margin based on the credit ratings of the Company’s outstanding senior unsecured long-term debt. Based on the Company’s current long-term debt ratings, which are subject to change, there would be no applicable margin on base rate loans for either of the Revolving Credit Facilities. The applicable margin on Term SOFR and EURIBOR loans would be 0.910% per annum for the 5-Year Revolving Credit Facility and 0.930% per annum for the 364-Day Revolving Credit Facility. Loans under the Revolving Credit Facilities may be prepaid without premium or penalty, subject to customary breakage costs.

The obligation of the Company to pay amounts outstanding under the Revolving Credit Facilities may be accelerated upon the occurrence of an “Event of Default” as defined in the applicable Revolving Credit Agreement. Such Events of Default include, among others, (a) non-payment of obligations; (b) breach of any representation or warranty in any material respect; (c) non-performance of covenants and obligations; (d) with respect to other indebtedness in a principal amount in excess of $100, a default thereunder that causes such indebtedness to become due prior to its stated maturity or a default in the payment at maturity of any principal of such indebtedness; (e) the bankruptcy or insolvency of Howmet; and (f) a change in control of the Company.

The Revolving Credit Agreements contain covenants, including, among others, (a) limitations on the Company’s ability to incur liens securing indebtedness for borrowed money; (b) limitations on the Company’s ability to consummate a consolidation, merger or sale of all or substantially all of its assets; (c) limitations on the Company’s ability to change the nature of its business; and (d) a limitation requiring the ratio of Consolidated Net Debt to Consolidated EBITDA (each as defined in the Revolving Credit Agreements, as applicable) as of the end of each fiscal quarter for the period of the four fiscal quarters most recently ended, to be less than or equal to 3.75 to 1.00, which may be increased to 4.25 to 1.00, at Howmet’s option, upon the occurrence of a material acquisition for the four consecutive fiscal quarters following the consummation thereof.

As of June 30, 2026 and December 31, 2025, the Company was in compliance with all covenants under the Revolving Credit Agreements.

There were no amounts outstanding as of June 30, 2026 or December 31, 2025, and no amounts were borrowed during 2026 or 2025 under the Revolving Credit Facilities.

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Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2026

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The carrying values of Cash and cash equivalents, restricted cash, derivatives, noncurrent receivables, Long-term debt due within one year, and short-term borrowings included in the Consolidated Balance Sheet approximate their fair value. The aforementioned derivatives were included in Prepaid expenses and other current assets, Other noncurrent assets, Other current liabilities, and Other noncurrent liabilities and deferred credits in the Consolidated Balance Sheet, as applicable. The Company holds available-for-sale, exchange-traded fixed income securities, which were included in Other noncurrent assets in the Consolidated Balance Sheet.

The Company holds a held-to-maturity, real estate debt investment purchased from the U.K. pension plan’s trust in 2025, of which $2 was redeemed during the first quarter of 2026. These activities are presented as Investing Activities in the Statement of Consolidated Cash Flows, and the remaining investment is included in Prepaid expenses and other current assets and Other noncurrent assets, in the Consolidated Balance Sheet.

The fair value of Long-term debt, less long-term debt due within one year, was based on quoted market prices for public debt with similar terms, interest rates and maturities available to Howmet.

		June 30, 2026				December 31, 2025
		Carrying value		Fair value		Carrying value		Fair value
Available-for-sale securities	Level 1	$	18	$	18	$	18	$	18
Held-to-maturity investments	Level 2	$	3	$	3	$	5	$	5
Long-term debt, less long-term debt due within one year	Level 2	$	4,050	$	4,034	$	2,859	$	2,919

Restricted cash, which is included in Prepaid expenses and other current assets in the Consolidated Balance Sheet, was $1 as of both June 30, 2026 and December 31, 2025.

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Contingencies, Commitments, and Other Liabilities

6 Months Ended

Jun. 30, 2026

Commitments and Contingencies Disclosure [Abstract]

Contingencies, Commitments, and Other Liabilities

Contingencies, Commitments, and Other Liabilities

Contingencies

The following information supplements and, as applicable, updates the discussion of the contingencies and commitments in Note U to the Consolidated Financial Statements in our Form 10-K, and should be read in conjunction with the complete descriptions provided in the Form 10-K.

Environmental Matters. Howmet participates in environmental assessments and/or cleanups at more than 30 locations. These include owned or operating facilities and adjoining properties, previously owned or operated facilities and adjoining properties, and waste sites, including Superfund (Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”)) sites.

A liability is recorded for environmental remediation when a cleanup program becomes probable and the costs can be reasonably estimated. As assessments and cleanups proceed, the liability is adjusted based on progress made in determining the extent of remedial actions and related costs. The liability can change substantially due to factors such as the nature and extent of contamination, changes in remedial requirements, and technological changes, among others.

The Company’s remediation reserve balance was $16 as of both June 30, 2026 and December 31, 2025 and was recorded in Other noncurrent liabilities and deferred credits in the Consolidated Balance Sheet (of which $7 as of both June 30, 2026 and December 31, 2025 was classified as a current liability), and reflects the most probable costs to remediate identified environmental conditions for which costs can be reasonably estimated. Payments related to remediation expenses applied against the reserve were $1 in both the second quarter and six months ended June 30, 2026, and included expenditures currently mandated, as well as those not required by any regulatory authority or third party.

Included in annual operating expenses are the recurring costs of managing hazardous substances and environmental programs. These costs are estimated to be less than 1% of Cost of goods sold.

Tax. In December 2013 and 2014, the Company received audit assessment notices from the French Tax Authority (“FTA”) for the 2010 through 2012 tax years. In 2016, the Company appealed to the Committee of the Abuse of Tax Law, where it received a favorable nonbinding decision. The FTA disagreed with the Committee of the Abuse of Tax Law’s opinion, and the Company appealed to the Montreuil Administrative Court, where in 2020 the Company prevailed on the merits. The FTA appealed this decision to the Paris Administrative Court of Appeal in 2021. On March 31, 2023, the Company received an adverse decision from the Paris Administrative Court of Appeal. The Company appealed this decision to the French Administrative Supreme Court. The assessment amount was $17 (€16 million), including $10 (€9 million) of tax and interest up through 2017 and $7 (€7 million) of penalties. The Company estimated additional interest to be $2 (€2 million). On July 23, 2024, the Company received the French Administrative Supreme Court’s decision. That decision upheld the assessment of $10 (€9 million) of tax and interest, while cancelling the penalties of $7 (€7 million) and remanding the penalty assessment issue to the Paris Administrative Court of Appeal for reexamination. On April 16, 2026, the Paris Administrative Court of Appeal reduced the penalties assessed to $4 (€3 million).

In 2023, the Company recorded an income tax reserve in Provision for income taxes in the Statement of Consolidated Operations of $21 (€19 million), which includes tax, estimated interest and penalties, for the 2010 through 2012 tax years, as well as the remaining tax years open for reassessment (2020-2023). In accordance with FTA dispute resolution practices, the Company paid the assessment amount including tax, interest, and penalties, to the FTA in December 2023. The Company expects to pay the additional interest related to the assessment in 2026. The Company also paid the estimated tax related to the 2020-2023 tax years in 2023. As of the third quarter of 2024, the Company no longer recorded an uncertain tax position related to the tax and interest assessed. In October 2024, the Company received a refund of the penalties that were remanded. Based on the April 2026 decision, the Company expects to pay the reduced penalties in 2026.

Legal Proceedings.

Indemnified Matters. The Separation and Distribution Agreement, dated October 31, 2016, that the Company entered into with Alcoa Corporation in connection with its separation from Alcoa Corporation, and the Separation and Distribution Agreement, dated March 31, 2020, that the Company entered into with Arconic Corporation in connection with its separation from Arconic Corporation, provide for cross-indemnities for claims subject to indemnification between the Company and Alcoa Corporation and between the Company and Arconic Corporation, respectively. To date, Alcoa Corporation and Arconic Corporation have fulfilled their respective indemnification obligations to the Company, and claims subject to indemnification by Alcoa Corporation or Arconic Corporation have not impacted the Company financially. Among other claims that are covered by these indemnities, Arconic Corporation indemnifies the Company (previously named Arconic Inc. and, prior to that, Alcoa Inc.) for all potential liabilities associated with the fire that occurred at the Grenfell Tower in London, U.K. on June 14, 2017, including the following legal proceedings, as updated from the Form 10-K:

United Kingdom Litigation. All personal injury claims on behalf of survivors and estates of decedents have been settled pursuant to terms of confidential settlement agreements and are discontinued and closed. On June 21, 2024, the Company was joined as a party to proceedings initiated by the Royal Borough of Kensington and Chelsea (RBKC) and Kensington and Chelsea Tenant Management Organisation (KCTMO) against AAP SAS and Whirlpool. On February 14, 2025, RBKC and KCTMO served their Particulars of Claim and Schedule of Loss on the defendants, which they updated on February 27, 2026. On July 18, 2025, the Company and AAP SAS filed their defense and counterclaim against RBKC and KCTMO, and contribution claims against various co-defendants and other third parties, as updated on March 13, 2026. The next case management conference is scheduled for December 13, 2027. Trial is anticipated to occur between October 2028 and July 2029.

Raul v. Albaugh, et al. (United States District Court for the District of Delaware). On June 22, 2018, a derivative complaint was filed nominally on behalf of Arconic Inc. by a purported Arconic Inc. stockholder against the then directors and certain officers of Arconic Inc., naming Arconic Inc. as a nominal defendant. The complaint alleged violations of federal securities laws relating to the Grenfell Fire, as well as claims under Delaware state law. On February 10, 2026, the court held a final settlement approval hearing, and the parties’ Stipulation of Settlement was approved. The Stipulation of Settlement had no material impact on the Company’s results of operations or cash flows.

With respect to the regulatory investigations in the U.K. described in the Form 10-K, there are no updates.

Other. In addition to the matters discussed above, various other lawsuits, claims, and proceedings have been or may be instituted or asserted against the Company, including those pertaining to environmental, product liability, safety and health, employment, tax and antitrust matters. While the amounts claimed in these other matters may be substantial, the ultimate liability cannot currently be determined because of the considerable uncertainties that exist. Therefore, it is possible that the Company’s liquidity or results of operations in a period could be materially affected by one or more of these other matters. However, based on facts currently available, management believes that the disposition of these other matters that are pending or asserted will not have a material adverse effect, individually or in the aggregate, on the results of operations, financial position or cash flows of the Company.

Commitments

Letters of Credit. The Company has outstanding letters of credit primarily related to workers’ compensation, environmental obligations, tax matters, and insurance obligations. The total amount committed under these letters of credit, which automatically renew or expire at various dates, primarily in 2026 and 2027, was $76 as of June 30, 2026.

Pursuant to the Separation and Distribution Agreements between the Company and Arconic Corporation and between the Company and Alcoa Corporation, the Company is required to retain letters of credit of $43, which are included in the $76 in the above paragraph, that had previously been provided related to the Company, Arconic Corporation, and Alcoa Corporation workers’ compensation claims that occurred prior to the respective separation transactions of April 1, 2020 and November 1, 2016. Arconic Corporation and Alcoa Corporation workers’ compensation and letters of credit fees paid by the Company are proportionally billed to, and are reimbursed by, Arconic Corporation and Alcoa Corporation, respectively. Also, the Company was required to provide letters of credit for certain Arconic Corporation environmental obligations and, as a result, the Company has $8 of outstanding letters of credit relating to such liabilities, which are also included in the $76 in the above paragraph. Arconic Corporation is being billed for these letter of credit fees paid by the Company and will reimburse the Company for any payments made under these letters of credit.

Surety Bonds. The Company has outstanding surety bonds primarily related to customs duties, workers’ compensation, pension, environmental-related matters, and contract performance. The total amount committed under these annual surety bonds, which automatically renew or expire at various dates, primarily in 2026 and 2027, was $43 as of June 30, 2026.

Pursuant to the Separation and Distribution Agreements between the Company and Arconic Corporation and between the Company and Alcoa Corporation, the Company is required to provide surety bonds of $19, which are included in the $43 in the above paragraph, that had previously been provided related to the Company, Arconic Corporation, and Alcoa Corporation workers’ compensation claims that occurred prior to the respective separation transactions of April 1, 2020 and November 1, 2016. Arconic Corporation and Alcoa Corporation workers’ compensation claims and surety bond fees paid by the Company are proportionately billed to, and are reimbursed by, Arconic Corporation and Alcoa Corporation, respectively.

Guarantees. Pursuant to the Separation and Distribution Agreement between the Company and Alcoa Corporation, Howmet was required to provide certain guarantees for Alcoa Corporation, which were included in Other noncurrent liabilities and deferred credits in the Consolidated Balance Sheet. The remaining guarantee which had a fair value of $5 as of both June 30, 2026 and December 31, 2025, relates to a long-term energy supply agreement that expires in 2047 at an Alcoa Corporation facility, for which the Company is secondarily liable in the event of a payment default by Alcoa Corporation. If the Company incurs any liability under this guarantee, Arconic Corporation is obligated to indemnify the Company for 50% of such liability. The Company currently views the risk of an Alcoa Corporation payment default on its obligations under the contract to be remote. The Company is required to provide a guarantee up to an estimated present value amount of approximately $1,141 as of both June 30, 2026 and December 31, 2025 in the event of an Alcoa Corporation default. In the fourth quarter of 2025, a surety bond with a limit of $80 relating to this guarantee was obtained by Alcoa Corporation to protect Howmet’s obligation. This surety bond will be renewed on an annual basis by Alcoa Corporation.

As of June 30, 2026, Howmet had other outstanding bank guarantees related to customs duties, rental, plant expansion, and environmental obligations. The total amount committed under these guarantees, which expire at various dates between 2026 and 2028, was $4 as of June 30, 2026.

Other Liabilities

Supplier Financing Arrangements. We offer voluntary supplier finance programs to suppliers who may elect to sell their receivables to third parties at the sole discretion of both the suppliers and the third parties. The program is at no cost to the Company and provides additional liquidity to our suppliers, if they desire, at their cost. Under these programs, the Company pays the third-party bank, rather than the supplier, the stated amount of the confirmed invoices on the original maturity date of the invoices. The Company or the third-party bank may terminate a program upon at least 30 days’ notice. Supplier invoices under the program require payment in full no more than approximately 120 days of the invoice date. As of June 30, 2026 and December 31, 2025, supplier invoices that are subject to future payment under these programs were $377 and $266, respectively, and are included in Accounts payable, trade in the Consolidated Balance Sheet.

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Subsequent Events

6 Months Ended

Jun. 30, 2026

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

Management evaluated all activity of Howmet and concluded that no subsequent events have occurred that would require recognition in the Consolidated Financial Statements or disclosure in the Notes to the Consolidated Financial Statements, except as noted below:

See Note I regarding share repurchases made in July 2026.

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Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2026
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The interim Consolidated Financial Statements of Howmet Aerospace Inc. and its subsidiaries (“Howmet” or the “Company” or “we” or “our”) are unaudited. These Consolidated Financial Statements include all adjustments, consisting only of normal recurring adjustments, considered necessary by management to fairly state the Company’s results of operations, financial position, and cash flows. The results reported in these Consolidated Financial Statements are not necessarily indicative of the results that may be expected for the entire year. The 2025 year-end balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America (“GAAP”). This Form 10-Q report should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2025 (the “Form 10-K”), which includes all disclosures required by GAAP, and with Exhibit 99.1 to the Company’s Current Report on Form 8-K dated May 28, 2026, which provides recast historical segment information. Certain amounts in previously issued financial statements were reclassified to conform to the current period presentation.

In the six months ended June 30, 2026, the Company derived approximately 68% of its revenue from products sold to the commercial and defense aerospace markets. The timing and level of future aircraft builds by original equipment manufacturers (“OEMs”) are subject to changes and uncertainties, including but not limited to geopolitical tensions or volatility in global energy and raw material markets, which may cause our future results to differ from prior periods due to changes in product mix in certain segments.

The timing, extent, application, and level of tariffs by various governments and our ability to recover tariffs are subject to changes and uncertainties in all segments. While the tariff situation remains fluid, we expect to pass along the costs associated with tariffs to our customers in the form of a cost pass through mechanism. There may be a delay between an increase in our costs and our ability to recover the higher costs that could impact our margins.

The preparation of the Consolidated Financial Statements of the Company in conformity with GAAP requires management to make certain judgments, estimates, and assumptions. These estimates are based on historical experience and, in some cases, assumptions based on current and future market expectations, including considerations relating to changes in the aerospace industry. The impact of these changes, including the macroeconomic considerations, remains highly uncertain. Management has made its best estimates using all relevant information available at the time, but it is possible that our estimates will differ from our actual results and affect the Consolidated Financial Statements in future periods and potentially require adverse adjustments to the recoverability of goodwill, intangible and long-lived assets, the realizability of deferred tax assets and other judgments and estimations and assumptions.

Recently Issued Accounting Guidance

Recently Issued Accounting Guidance

Issued

In May 2026, the Financial Accounting Standards Board (“FASB”) issued guidance to improve the financial accounting for and disclosure of environmental credits and environmental credit obligations. These changes become effective for fiscal years beginning after December 15, 2027 for interim and annual reporting periods. Management is currently evaluating the impact of these changes on the Consolidated Financial Statements.

In September 2025, the FASB issued guidance to simplify the requirements for the capitalization of costs surrounding internally-developed software. These changes become effective for fiscal years beginning after December 15, 2027 for interim and annual reporting periods. Management is currently evaluating the impact of these changes on the Consolidated Financial Statements.

In November 2024, the FASB issued guidance to improve disclosures about an entity’s expenses including more detailed information about the components of expenses in commonly presented expense captions. These changes become effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Management is currently evaluating the impact of these changes on the Consolidated Financial Statements.

Earnings Per Share

Basic earnings per share (“EPS”) amounts are computed by dividing earnings, after the deduction of preferred stock dividends declared, by the average number of common shares outstanding. Diluted EPS amounts assume the issuance of common stock for all potentially dilutive share equivalents outstanding.

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Acquisitions and Divestitures (Tables)

6 Months Ended

Jun. 30, 2026

Acquisitions And Divestitures [Abstract]

Schedule of Recognized Asset Acquired and Liability Assumed

The Company’s preliminary allocation of the purchase price for both the CAM and Brunner acquisitions, based upon the estimated fair value of assets acquired and liabilities assumed, is as follows:

Assets Acquired
Receivables from customers	$	83
Inventories	181
Properties, plants, and equipment	204
Other noncurrent assets	41
Intangible assets	425
Total Assets Acquired	934
Liabilities Assumed
Accounts payable, trade	$	40
Accrued compensation and retirement costs	14
Other current liabilities	10
Other noncurrent liabilities	23
Total Liabilities Assumed	87
Net Assets Acquired	$	847
Goodwill	$	1,082

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2026

Segment Reporting [Abstract]

Schedule of Operating Results and Capital Expenditures by Reportable Segments

The operating results of the Company’s reportable segments were as follows:

	Engine Products		Fastening Systems		Engineered Structures		Forged Wheels		Total Segment
Second quarter ended June 30, 2026
Sales:
Third-party sales	$	1,373	$	589	$	269	$	316	$	2,547
Inter-segment sales	3		—		8		—		11
Total sales	$	1,376	$	589	$	277	$	316	$	2,558
Expenses:
Segment Adjusted cost of goods sold(1)	$	831	$	373	$	204	$	216	$	1,624
Other segment items(2)	28		39		9		12		88
Profit and loss:
Segment Adjusted EBITDA	$	517	$	177	$	64	$	88	$	846
Provision for depreciation and amortization	42		20		11		10		83
Other:
Capital expenditures	$	77	$	11	$	8	$	4	$	100
Second quarter ended June 30, 2025
Sales:
Third-party sales	$	1,038	$	431	$	308	$	276	$	2,053
Inter-segment sales	3		—		8		—		11
Total sales	$	1,041	$	431	$	316	$	276	$	2,064
Expenses:
Segment Adjusted cost of goods sold(1)	$	671	$	276	$	239	$	189	$	1,375
Other segment items(2)	27		29		9		11		76
Profit and loss:
Segment Adjusted EBITDA	$	343	$	126	$	68	$	76	$	613
Provision for depreciation and amortization	35		12		10		10		67
Restructuring and other charges (credits)	—		1		—		(1)		—
Other:
Capital expenditures	$	74	$	9	$	7	$	8	$	98
	Engine Products		Fastening Systems		Engineered Structures		Forged Wheels		Total Segment
Six months ended June 30, 2026
Sales:
Third-party sales	$	2,626	$	1,060	$	563	$	611	$	4,860
Inter-segment sales	5		—		16		—		21
Total sales	$	2,631	$	1,060	$	579	$	611	$	4,881
Expenses:
Segment Adjusted cost of goods sold(1)	$	1,596	$	662	$	430	$	411	$	3,099
Other segment items(2)	60		71		19		22		172
Profit and loss:
Segment Adjusted EBITDA	$	975	$	327	$	130	$	178	$	1,610
Provision for depreciation and amortization	80		33		21		21		155
Restructuring and other credits	—		—		(93)		—		(93)
Other:
Capital expenditures	$	136	$	28	$	20	$	7	$	191
Total assets	5,777		4,756		1,277		785		12,595

Six months ended June 30, 2025
Sales:
Third-party sales	$	2,012	$	843	$	612	$	528	$	3,995
Inter-segment sales	5		—		15		—		20
Total sales	$	2,017	$	843	$	627	$	528	$	4,015
Expenses:
Segment Adjusted cost of goods sold(1)	$	1,304	$	532	$	475	$	363	$	2,674
Other segment items(2)	52		58		17		21		148
Profit and loss:
Segment Adjusted EBITDA	$	661	$	253	$	135	$	144	$	1,193
Provision for depreciation and amortization	68		24		23		20		135
Restructuring and other charges (credits)	—		1		(4)		(1)		(4)
Other:
Capital expenditures	$	159	$	19	$	13	$	23	$	214
Total assets	5,512		2,787		1,374		748		$	10,421

(1)Segment Adjusted cost of goods sold is exclusive of Provision for depreciation and amortization, Restructuring and other credits, and Corporate expenses.

(2)Other segment items includes Selling, general administrative, and other expenses, and Research and development expenses; exclusive of Provision for depreciation and amortization, and Restructuring and credits.

The following table reconciles total segment capital expenditures with Capital expenditures as presented in the Statement of Consolidated Cash Flows.

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Total segment capital expenditures	$	100	$	98	$	191	$	214
Corporate	4		4		7		7
Capital expenditures	$	104	$	102	$	198	$	221

Schedule of Reconciliation of Total Segment Operating Profit to Income Before Income Taxes

The following table reconciles Total Segment Adjusted EBITDA to Income before income taxes. Differences between the total segment and consolidated totals are in Corporate.

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Total Segment Adjusted EBITDA	$	846	$	613	$	1,610	$	1,193
Segment provision for depreciation and amortization	(83)		(67)		(155)		(135)
Unallocated amounts:
Restructuring and other credits	—		—		93		4
Corporate expense(1)	(52)		(25)		(84)		(47)
Operating income	$	711	$	521	$	1,464	$	1,015
Interest expense, net	(51)		(38)		(94)		(77)
Other expense, net	(11)		(14)		(13)		(23)
Income before income taxes	$	649	$	469	$	1,357	$	915

(1)    Corporate expense includes selling, general administrative and other expenses, costs of corporate headquarters, acquisition and acquisition-related costs, costs associated with closures, supply chain disruptions, and other items.

Schedule of Disaggregation of Revenue by Major End Market Served

The following table disaggregates segment revenue by major market served. Differences between the total segment and consolidated totals are in Corporate.

	Engine Products		Fastening Systems		Engineered Structures		Forged Wheels		Total Segment
Second quarter ended June 30, 2026
Aerospace - Commercial	$	770	$	412	$	177	$	—	$	1,359
Aerospace - Defense	250		64		75		—		389
Commercial Transportation	—		56		—		316		372
Gas Turbines	321		—		—		—		321
Other	32		57		17		—		106
Total end-market revenue	$	1,373	$	589	$	269	$	316	$	2,547
Second quarter ended June 30, 2025
Aerospace - Commercial	$	562	$	297	$	201	$	—	$	1,060
Aerospace - Defense	214		44		94		—		352
Commercial Transportation	—		56		—		276		332
Gas Turbines	233		—		—		—		233
Other	29		34		13		—		76
Total end-market revenue	$	1,038	$	431	$	308	$	276	$	2,053
Six months ended June 30, 2026
Aerospace - Commercial	$	1,472	$	734	$	368	$	—	$	2,574
Aerospace - Defense	488		115		152		—		755
Commercial Transportation	—		107		—		611		718
Gas Turbines	605		—		—		—		605
Other	61		104		43		—		208
Total end-market revenue	$	2,626	$	1,060	$	563	$	611	$	4,860
Six months ended June 30, 2025
Aerospace - Commercial	$	1,097	$	572	$	407	$	—	$	2,076
Aerospace - Defense	425		86		174		—		685
Commercial Transportation	—		109		—		528		637
Gas Turbines	437		—		—		—		437
Other	53		76		31		—		160
Total end-market revenue	$	2,012	$	843	$	612	$	528	$	3,995

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Restructuring and Other Credits (Tables)

6 Months Ended

Jun. 30, 2026

Restructuring and Related Activities [Abstract]

Schedule of Restructuring and Other Charges (Credits)

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Layoff costs	$	—	$	3	$	—	$	3
Reversals of previously recorded layoff reserves	—		(1)		—		(2)
Net gains related to divestitures of assets and businesses (C)	—		(2)		(93)		(5)
Total restructuring and other credits	$	—	$	—	$	(93)	$	(4)

Schedule of Activity and Reserve Balances for Restructuring Charges

	Layoff costs		Other exit costs		Total
Reserve balances at December 31, 2025	$	1	$	—	$	1
Restructuring credits	—		(93)		(93)
Other(1)	—		93		93
Reserve balances at June 30, 2026	$	1	$	—	$	1

(1)In the six months ended June 30, 2026, other for other exit costs were primarily due to a gain on the sale of the disk forging facility in Savannah, Georgia within Engineered Structures of $93.

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Retirement and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2026

Retirement Benefits [Abstract]

Schedule of Components of Net Periodic Cost (Benefit)

The components of net periodic cost (benefit) were as follows:

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Pension benefits
Service cost	$	1	$	—	$	1	$	1
Interest cost	15		19		31		38
Expected return on plan assets	(13)		(16)		(27)		(33)
Recognized net actuarial loss	9		8		18		15
Net periodic cost(1)	$	12	$	11	$	23	$	21
Other postretirement benefits
Service cost	$	—	$	—	$	—	$	—
Interest cost	—		1		1		2
Recognized net actuarial gain	(2)		(2)		(4)		(4)
Amortization of prior service benefit	(2)		(3)		(4)		(5)
Net periodic benefit(1)	$	(4)	$	(4)	$	(7)	$	(7)

(1)Service cost was included within Cost of goods sold; all other cost components were recorded in Other expense, net in the Statement of Consolidated Operations.

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Other Expense, Net (Tables)

6 Months Ended

Jun. 30, 2026

Other Income and Expenses [Abstract]

Schedule of Other Expense, Net

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Non-service costs - pension and other postretirement benefits (F)	$	7	$	7	$	15	$	13
Interest income	(7)		(4)		(17)		(8)
Foreign currency losses (gains), net	1		(3)		2		(3)
Net realized and unrealized losses	4		6		8		11
Deferred compensation	7		8		6		10
Other, net	(1)		—		(1)		—
Total other expense, net	$	11	$	14	$	13	$	23

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Income Taxes (Tables)

6 Months Ended

Jun. 30, 2026

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provisions

The tax provision was comprised of the following:

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Pre-tax income at estimated annual effective income tax rate before discrete items	$	135	$	97	$	284	$	190
Other discrete items	(20)		(35)		(41)		(26)
Provision for income taxes	$	115	$	62	$	243	$	164

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Earnings Per Share and Common Stock (Tables)

6 Months Ended

Jun. 30, 2026

Earnings Per Share [Abstract]

Schedule of Reconciliation of Information Used to Compute Basic and Diluted EPS

The information used to compute basic and diluted EPS attributable to Howmet common shareholders was as follows (shares in millions in the table below):

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Net income	$	534	$	407	$	1,114	$	751
Less: preferred stock dividends declared	—		—		—		1
Net income available to Howmet Aerospace common shareholders - basic and diluted	$	534	$	407	$	1,114	$	750
Average shares outstanding - basic	400		404		400		404
Effect of dilutive securities:
Stock and performance awards	2		2		2		3
Average shares outstanding - diluted	402		406		402		407

Schedule of Share Repurchases

The following table provides details for share repurchases made for the periods presented:

	Number of shares(1)	Average price per share(2)		Total
Q1 2026 open market repurchase	1,301,914	$	230.43	$	300
Q2 2026 open market repurchase	1,197,056	$	250.61	$	300
2026 open market repurchases as of June 30, 2026	2,498,970	$	240.10	$	600
Q1 2025 open market repurchase	1,006,102	$	124.24	$	125
Q2 2025 open market repurchase	1,229,313	$	142.36	$	175
2025 open market repurchases as of June 30, 2025	2,235,415	$	134.20	$	300

(1)All of the shares repurchased have been retired.

(2)Excludes commissions cost.

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Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2026

Equity [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Loss by Component

The following table details the activity of the three components that comprise Accumulated other comprehensive loss:

	Second quarter ended				Six months ended
	June 30,				June 30,
	2026		2025		2026		2025
Pension and other postretirement benefits (F)
Balance at beginning of period	$	(588)	$	(669)	$	(592)	$	(672)
Other comprehensive income:
Unrecognized net actuarial gain and prior service benefit	—		1		—		—
Tax benefit	—		—		—		1
Total Other comprehensive income before reclassifications, net of tax	—		1		—		1
Amortization of net actuarial loss and prior service benefit(1)	5		3		10		6
Tax expense(2)	(1)		(1)		(2)		(1)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(3)	4		2		8		5
Total Other comprehensive income	4		3		8		6
Balance at end of period	$	(584)	$	(666)	$	(584)	$	(666)
Foreign currency translation
Balance at beginning of period	$	(1,084)	$	(1,162)	$	(1,052)	$	(1,207)
Other comprehensive (loss) income(4)	(10)		117		(42)		162
Balance at end of period	$	(1,094)	$	(1,045)	$	(1,094)	$	(1,045)
Cash flow hedges
Balance at beginning of period	$	(19)	$	1	$	(29)	$	1
Other comprehensive (loss) income:
Net change from periodic revaluations(5)	1		(49)		14		(50)
Tax benefit (expense)	—		11		(3)		11
Total Other comprehensive income (loss) before reclassifications, net of tax	1		(38)		11		(39)
Net amount reclassified to earnings(6)	(1)		(2)		(1)		—
Tax benefit(2)	—		1		—		—
Total amount reclassified from Accumulated other comprehensive loss, net of tax(3)	(1)		(1)		(1)		—
Total Other comprehensive (loss) income	—		(39)		10		(39)
Balance at end of period	$	(19)	$	(38)	$	(19)	$	(38)
Accumulated other comprehensive loss	$	(1,697)	$	(1,749)	$	(1,697)	$	(1,749)

(1)These amounts were recorded in Other expense, net (See Note G) in the Statement of Consolidated Operations.

(2)These amounts were included in Provision for income taxes (See Note H) in the Statement of Consolidated Operations.

(3)A positive amount indicates a corresponding charge to earnings and a negative amount indicates a corresponding benefit to earnings.

(4)In all periods presented, no amounts were reclassified to earnings.

(5)Includes the change in the cross-currency swaps related to the 6.750% Bonds due 2028 and the 4.850% Notes due 2031 (See Note O). In all periods presented, no amounts related to the changes were reclassified to earnings. The cross-currency swaps were recorded in Other noncurrent assets and Other noncurrent liabilities and deferred credits respectively, in the Consolidated Balance Sheet.

(6)These amounts were recorded in Cost of goods sold in the Statement of Consolidated Operations

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Inventories (Tables)

6 Months Ended

Jun. 30, 2026

Inventory Disclosure [Abstract]

Schedule of Inventories Components

	June 30, 2026		December 31, 2025
Finished goods	$	497	$	462
Work-in-process	1,070		885
Purchased raw materials	531		424
Operating supplies	85		78
Total inventories	$	2,183	$	1,849

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Properties, Plants, and Equipment, net (Tables)

6 Months Ended

Jun. 30, 2026

Property, Plant, and Equipment [Abstract]

Schedule of Properties, Plants, and Equipment, Net

	June 30, 2026		December 31, 2025
Land and land rights	$	113	$	85
Structures	1,179		1,134
Machinery and equipment	4,496		4,275
	5,788		5,494
Less: accumulated depreciation and amortization	3,330		3,236
	2,458		2,258
Construction work-in-progress	359		335
Properties, plants, and equipment, net	$	2,817	$	2,593

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Leases (Tables)

6 Months Ended

Jun. 30, 2026

Leases [Abstract]

Schedule of Supplemental Balance Sheet Information Related to Leases

Operating lease right-of-use assets and lease liabilities in the Consolidated Balance Sheet were as follows:

	June 30, 2026		December 31, 2025
Right-of-use assets classified in Other noncurrent assets	$	162	$	162
Current portion of lease liabilities classified in Other current liabilities	$	46	$	42
Long-term portion of lease liabilities classified in Other noncurrent liabilities and deferred credits	117		121
Total lease liabilities	$	163	$	163

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Debt (Tables)

6 Months Ended

Jun. 30, 2026

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

	June 30, 2026		December 31, 2025
JPY Term Loan Facility, due 2026(1)	$	—	$	191
6.750% Bonds, due 2028(2)	300		300
3.750% Notes, due 2028	400		—
3.000% Notes, due 2029	700		700
3.900% Notes, due 2029	300		—
4.850% Notes, due 2031(3)	500		500
4.550% Notes, due 2032	500		500
4.750% Notes, due 2036	500		—
5.950% Notes, due 2037	625		625
4.750% Iowa Finance Authority Loan, due 2042	250		250
Short-term borrowings	450		—
Other, net(4)	(24)		(16)
	4,501		3,050
Less: amounts due within one year	451		191
Total long-term debt	$	4,050	$	2,859

(1)On May 22, 2026, the Company completed the early prepayment of the remaining amount outstanding under the JPY Term Loan Facility. The Company had entered into an interest rate swap to exchange the floating interest rate of the JPY Term Loan Facility to a fixed interest rate of 1.794% as of December 31, 2025, based on the Company’s long-term debt ratings. This swap was settled upon the prepayment of the JPY Term Loan Facility with an impact to the Consolidated Financial Statements of less than $1.

(2)The Company entered into a cross-currency swap to synthetically convert the 6.750% Bonds due 2028 (the “2028 Bonds”) into a Japanese Yen liability of approximately ¥47,760 million with a fixed annual interest rate of 3.880%.

(3)The Company entered into a cross-currency swap to synthetically convert the 4.850% Notes due 2031 (the “2031 Notes”) into a Euro liability of approximately €458 million with a fixed annual interest rate of 3.720%.

(4)Includes unamortized debt discounts and unamortized debt issuance costs related to outstanding notes and bonds listed in the table above and various financing arrangements related to subsidiaries.

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Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2026

Fair Value Disclosures [Abstract]

Schedule of Carrying Values and Fair Values of Financial Instruments

		June 30, 2026				December 31, 2025
		Carrying value		Fair value		Carrying value		Fair value
Available-for-sale securities	Level 1	$	18	$	18	$	18	$	18
Held-to-maturity investments	Level 2	$	3	$	3	$	5	$	5
Long-term debt, less long-term debt due within one year	Level 2	$	4,050	$	4,034	$	2,859	$	2,919

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Basis of Presentation (Details)	6 Months Ended
	Jun. 30, 2026
Aerospace | Revenue Benchmark | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	68.00%

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Acquisitions and Divestitures - Narrative (Details) $ in Millions			3 Months Ended	5 Months Ended	6 Months Ended		12 Months Ended
	Apr. 06, 2026 USD ($)	Feb. 06, 2026 USD ($)	Mar. 31, 2026 USD ($)	Jun. 30, 2026	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) employee
Disposal Group, Including Discontinued Operations [Line Items]
Acquisitions, net of cash acquired					$ 1,929	$ 0
Disposed by Sale | Disk Forging Facility
Disposal Group, Including Discontinued Operations [Line Items]
Divestiture, consideration			$ 230
Proceeds from the sales of businesses			225
Gain from disposal of business			93		$ 93
Net assets			92
Reduction in goodwill from sale of business			$ 41
Sales							$ 130
Number of employees at the time of divestiture | employee							160
CAM
Disposal Group, Including Discontinued Operations [Line Items]
Acquisitions, net of cash acquired	$ 1,812
Cash acquired	$ 1
Brunner
Disposal Group, Including Discontinued Operations [Line Items]
Acquisitions, net of cash acquired		$ 120
Cash acquired		$ 2
CAM and Brunner
Disposal Group, Including Discontinued Operations [Line Items]
Acquiree's revenue since acquisition date, actual (in percent)				2.00%
Acquiree's net income since acquisition date, actual (in percent)				1.00%

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Acquisitions and Divestitures - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Liabilities Assumed
Goodwill	$ 5,084	$ 4,022
CAM and Brunner
Assets Acquired
Receivables from customers	83
Inventories	181
Properties, plants, and equipment	204
Other noncurrent assets	41
Intangible assets	425
Total Assets Acquired	934
Liabilities Assumed
Accounts payable, trade	40
Accrued compensation and retirement costs	14
Other current liabilities	10
Other noncurrent liabilities	23
Total Liabilities Assumed	87
Net Assets Acquired	847
Goodwill	$ 1,082

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Segment Information - Narrative (Details) - segment	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Abstract]
Number of reportable segments	4
Revenue Benchmark | Product Concentration Risk | Aerospace
Segment Reporting [Line Items]
Concentration risk, percentage	68.00%	69.00%
Revenue Benchmark | Customer Concentration Risk | GE Aerospace
Segment Reporting [Line Items]
Concentration risk, percentage	14.00%	10.00%
Revenue Benchmark | Customer Concentration Risk | RTX Corporation
Segment Reporting [Line Items]
Concentration risk, percentage	10.00%	11.00%
Revenue Benchmark | Customer Concentration Risk | Aerospace
Segment Reporting [Line Items]
Concentration risk, percentage	68.00%

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Segment Information - Operating Results of Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Sales:
Sales	$ 2,547	$ 2,053	$ 4,860	$ 3,995
Profit and loss:
Provision for depreciation and amortization	84	69	158	138
Restructuring and other charges (credits)	0	0	(93)	(4)
Other:
Capital expenditures	104	102	198	221
Total assets	13,251		13,251		$ 11,179
Engine Products
Sales:
Sales	1,373	1,038	2,626	2,012
Fastening Systems
Sales:
Sales	589	431	1,060	843
Engineered Structures
Sales:
Sales	269	308	563	612
Forged Wheels
Sales:
Sales	316	276	611	528
Inter-segment sales
Sales:
Sales	11	11	21	20
Inter-segment sales | Engine Products
Sales:
Sales	3	3	5	5
Inter-segment sales | Fastening Systems
Sales:
Sales	0	0	0	0
Inter-segment sales | Engineered Structures
Sales:
Sales	8	8	16	15
Inter-segment sales | Forged Wheels
Sales:
Sales	0	0	0	0
Total segment capital expenditures
Sales:
Sales	2,558	2,064	4,881	4,015
Expenses:
Segment Adjusted cost of goods sold	1,624	1,375	3,099	2,674
Other segment items	88	76	172	148
Profit and loss:
Segment Adjusted EBITDA	846	613	1,610	1,193
Provision for depreciation and amortization	83	67	155	135
Restructuring and other charges (credits)		0	(93)	(4)
Other:
Capital expenditures	100	98	191	214
Total assets	12,595	10,421	12,595	10,421
Total segment capital expenditures | Engine Products
Sales:
Sales	1,376	1,041	2,631	2,017
Expenses:
Segment Adjusted cost of goods sold	831	671	1,596	1,304
Other segment items	28	27	60	52
Profit and loss:
Segment Adjusted EBITDA	517	343	975	661
Provision for depreciation and amortization	42	35	80	68
Restructuring and other charges (credits)		0	0	0
Other:
Capital expenditures	77	74	136	159
Total assets	5,777	5,512	5,777	5,512
Total segment capital expenditures | Fastening Systems
Sales:
Sales	589	431	1,060	843
Expenses:
Segment Adjusted cost of goods sold	373	276	662	532
Other segment items	39	29	71	58
Profit and loss:
Segment Adjusted EBITDA	177	126	327	253
Provision for depreciation and amortization	20	12	33	24
Restructuring and other charges (credits)		1	0	1
Other:
Capital expenditures	11	9	28	19
Total assets	4,756	2,787	4,756	2,787
Total segment capital expenditures | Engineered Structures
Sales:
Sales	277	316	579	627
Expenses:
Segment Adjusted cost of goods sold	204	239	430	475
Other segment items	9	9	19	17
Profit and loss:
Segment Adjusted EBITDA	64	68	130	135
Provision for depreciation and amortization	11	10	21	23
Restructuring and other charges (credits)		0	(93)	(4)
Other:
Capital expenditures	8	7	20	13
Total assets	1,277	1,374	1,277	1,374
Total segment capital expenditures | Forged Wheels
Sales:
Sales	316	276	611	528
Expenses:
Segment Adjusted cost of goods sold	216	189	411	363
Other segment items	12	11	22	21
Profit and loss:
Segment Adjusted EBITDA	88	76	178	144
Provision for depreciation and amortization	10	10	21	20
Restructuring and other charges (credits)		(1)	0	(1)
Other:
Capital expenditures	4	8	7	23
Total assets	$ 785	$ 748	$ 785	$ 748

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Segment Information - Segment Operating Profit to Income Before Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Segment provision for depreciation and amortization	$ (84)	$ (69)	$ (158)	$ (138)
Unallocated amounts:
Restructuring and other credits	0	0	93	4
Operating income	711	521	1,464	1,015
Interest expense, net	(51)	(38)	(94)	(77)
Other expense, net	(11)	(14)	(13)	(23)
Income before income taxes	649	469	1,357	915
Total segment capital expenditures
Segment Reporting [Line Items]
Total Segment Adjusted EBITDA	846	613	1,610	1,193
Segment provision for depreciation and amortization	(83)	(67)	(155)	(135)
Unallocated amounts:
Restructuring and other credits		0	93	4
Corporate expense
Unallocated amounts:
Restructuring and other credits	0	0	93	4
Corporate expense	$ (52)	$ (25)	$ (84)	$ (47)

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Segment Information - Reconciliation of Capital Expenditures (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Capital expenditures	$ 104	$ 102	$ 198	$ 221
Total segment capital expenditures
Segment Reporting [Line Items]
Capital expenditures	100	98	191	214
Corporate
Segment Reporting [Line Items]
Capital expenditures	$ 4	$ 4	$ 7	$ 7

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Segment Information - Disaggregation of Revenue by Major End Market Served (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	$ 2,547	$ 2,053	$ 4,860	$ 3,995
Engine Products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	1,373	1,038	2,626	2,012
Fastening Systems
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	589	431	1,060	843
Engineered Structures
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	269	308	563	612
Forged Wheels
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	316	276	611	528
Aerospace - Commercial
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	1,359	1,060	2,574	2,076
Aerospace - Commercial | Engine Products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	770	562	1,472	1,097
Aerospace - Commercial | Fastening Systems
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	412	297	734	572
Aerospace - Commercial | Engineered Structures
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	177	201	368	407
Aerospace - Commercial | Forged Wheels
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	0	0	0	0
Aerospace - Defense
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	389	352	755	685
Aerospace - Defense | Engine Products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	250	214	488	425
Aerospace - Defense | Fastening Systems
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	64	44	115	86
Aerospace - Defense | Engineered Structures
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	75	94	152	174
Aerospace - Defense | Forged Wheels
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	0	0	0	0
Commercial Transportation
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	372	332	718	637
Commercial Transportation | Engine Products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	0	0	0	0
Commercial Transportation | Fastening Systems
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	56	56	107	109
Commercial Transportation | Engineered Structures
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	0	0	0	0
Commercial Transportation | Forged Wheels
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	316	276	611	528
Gas Turbines
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	321	233	605	437
Gas Turbines | Engine Products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	321	233	605	437
Gas Turbines | Fastening Systems
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	0	0	0	0
Gas Turbines | Engineered Structures
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	0	0	0	0
Gas Turbines | Forged Wheels
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	0	0	0	0
Other
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	106	76	208	160
Other | Engine Products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	32	29	61	53
Other | Fastening Systems
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	57	34	104	76
Other | Engineered Structures
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	17	13	43	31
Other | Forged Wheels
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Sales	$ 0	$ 0	$ 0	$ 0

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Restructuring and Other Credits - Restructuring and Other Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Restructuring and Related Activities [Abstract]
Layoff costs	$ 0	$ 3	$ 0	$ 3
Reversals of previously recorded layoff reserves	0	(1)	0	(2)
Net gains related to divestitures of assets and businesses (C)	0	(2)	(93)	(5)
Total restructuring and other credits	$ 0	$ 0	$ (93)	$ (4)

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Restructuring and Other Credits - Narrative (Details) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2026 USD ($)	Mar. 31, 2026 USD ($)	Jun. 30, 2025 USD ($) employee	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and other (credits) charges (less than)	$ 1		$ 1
Restructuring and other credits	0		0	$ (93)	$ (4)
Layoff costs	0		$ 3	0	3
Number of employees associated with layoff costs | employee			119
Reversal of previously recorded layoff reserve	$ 0		$ 1	0	2
Fastening Systems
Restructuring Cost and Reserve [Line Items]
Number of employees associated with layoff costs | employee			79
Forged Wheels
Restructuring Cost and Reserve [Line Items]
Number of employees associated with layoff costs | employee			40
Gain (loss) on sale of assets			$ 2		2
Engineered Structures | UK
Restructuring Cost and Reserve [Line Items]
Gain (loss) on sale of assets					$ 3
Disposed by Sale | Disk Forging Facility
Restructuring Cost and Reserve [Line Items]
Gain from disposal of business		$ 93		$ 93

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Restructuring and Other Credits - Activity and Reserve Balances for Restructuring Charges (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2026	Jun. 30, 2026
Restructuring Reserve [Roll Forward]
Reserve balance at beginning of period	$ 1	$ 1
Restructuring credits		(93)
Other		93
Reserve balance at end of period		1
Disposed by Sale | Disk Forging Facility
Restructuring Cost and Reserve [Line Items]
Gain from disposal of business	93	93
Layoff costs
Restructuring Reserve [Roll Forward]
Reserve balance at beginning of period	1	1
Restructuring credits		0
Other		0
Reserve balance at end of period		1
Other exit costs
Restructuring Reserve [Roll Forward]
Reserve balance at beginning of period	$ 0	0
Restructuring credits		(93)
Other		93
Reserve balance at end of period		$ 0

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Retirement and Other Postretirement Benefits - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Pension benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1	$ 0	$ 1	$ 1
Interest cost	15	19	31	38
Expected return on plan assets	(13)	(16)	(27)	(33)
Recognized net actuarial (gain) loss	9	8	18	15
Net periodic cost (benefit)	12	11	23	21
Other postretirement benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	0	1	1	2
Recognized net actuarial (gain) loss	(2)	(2)	(4)	(4)
Amortization of prior service benefit	(2)	(3)	(4)	(5)
Net periodic cost (benefit)	$ (4)	$ (4)	$ (7)	$ (7)

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Retirement and Other Postretirement Benefits - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Retirement Benefits [Abstract]
Contributions and payments	$ 24	$ 18	$ 27	$ 19

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Other Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Other Income and Expenses [Abstract]
Non-service costs - pension and other postretirement benefits (F)	$ 7	$ 7	$ 15	$ 13
Interest income	(7)	(4)	(17)	(8)
Foreign currency losses (gains), net	1	(3)	2	(3)
Net realized and unrealized losses	4	6	8	11
Deferred compensation	7	8	6	10
Other, net	(1)	0	(1)	0
Total other expense, net	$ 11	$ 14	$ 13	$ 23

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Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Effective Income Tax Rate Reconciliation [Line Items]
Effective tax rate, before discrete items (as a percent)	20.90%	20.80%	20.90%	20.80%
Tax Jurisdiction of Domicile [Extensible Enumeration]			UNITED STATES
Effective tax rate including discrete items (as a percent)	17.70%	13.20%	17.90%	17.90%
Discrete net tax benefit	$ 20	$ 35	$ 41	$ 26
Establishment of withholding tax reserve	16		16
Effective income tax rate reconciliation, discrete net tax benefit	1	13	22	14
Accounting method changes for certain prior period transaction and other costs		17		17
Tax credit, research amount		$ 5		5
Net of tax charge for other small items				2
Foreign
Effective Income Tax Rate Reconciliation [Line Items]
Release of valuation allowance	22		22
State
Effective Income Tax Rate Reconciliation [Line Items]
Release of valuation allowance	10		10
Germany
Effective Income Tax Rate Reconciliation [Line Items]
Release of valuation allowance	$ 3		$ 3
Charge for foreign tax reserve				2
China
Effective Income Tax Rate Reconciliation [Line Items]
Net charge related to expiration of tax holiday				$ 6

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Income Taxes - Income Tax Provision (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Tax Disclosure [Abstract]
Pre-tax income at estimated annual effective income tax rate before discrete items	$ 135	$ 97	$ 284	$ 190
Other discrete items	(20)	(35)	(41)	(26)
Provision for income taxes	$ 115	$ 62	$ 243	$ 164

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Earnings Per Share and Common Stock - Reconciliation of Information Used to Compute Basic and Diluted EPS (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Earnings Per Share [Abstract]
Net income	$ 534	$ 407	$ 1,114	$ 751
Less: preferred stock dividends declared	0	0	0	1
Net income available to Howmet Aerospace common shareholders - basic	534	407	1,114	750
Net income available to Howmet Aerospace common shareholders - diluted	$ 534	$ 407	$ 1,114	$ 750
Average shares outstanding - basic (in shares)	400	404	400	404
Effect of dilutive securities:
Stock and performance awards (in shares)	2	2	2	3
Average shares outstanding - diluted (in shares)	402	406	402	407

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Earnings Per Share and Common Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended	3 Months Ended				6 Months Ended
	Aug. 03, 2026	Dec. 17, 2025	Jul. 31, 2024	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025	Aug. 31, 2021
Class of Stock [Line Items]
Common Stock Shares Issued Not Disclosed				true		true		true	true
Number of Authorized Shares Not Disclosed				true		true		true	true
Common stock outstanding (in shares)				400,000,000		404,000,000		400,000,000	404,000,000
Preferred stock outstanding (in shares)				0				0
Authorized repurchase amount			$ 3,500							$ 1,500
Increase in authorized amount			$ 2,000
Value of shares repurchased				$ 303		$ 176		$ 605	$ 302
Average price per share (in usd per share)				$ 250.61	$ 230.43	$ 142.36	$ 124.24	$ 240.10	$ 134.20
Stock repurchased and retired (in shares)				1,197,056	1,301,914	1,229,313	1,006,102	2,498,970	2,235,415
Excise tax				$ 3		$ 1		$ 5	$ 2
Subsequent Event
Class of Stock [Line Items]
Remaining authorized repurchase amount	$ 697
Value of shares repurchased	$ 200
Average price per share (in usd per share)	$ 276.61
Stock repurchased and retired (in shares)	700,000
Preferred Class A
Class of Stock [Line Items]
Preferred stock, dividend rate (in usd per share)		$ 3.75
Stock Options
Class of Stock [Line Items]
Number of anti-dilutive securities (in shares)				0		0		0	0

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Earnings Per Share and Common Stock - Share Repurchases (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025
Earnings Per Share [Abstract]
Number of shares	1,197,056	1,301,914	1,229,313	1,006,102	2,498,970	2,235,415
Average price per share (in usd per share)	$ 250.61	$ 230.43	$ 142.36	$ 124.24	$ 240.10	$ 134.20
Total	$ 300	$ 300	$ 175	$ 125	$ 600	$ 300

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Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	May 22, 2026
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 5,522	$ 4,792	$ 5,353	$ 4,554
Other comprehensive income:
Total Other comprehensive (loss) income, net of tax	(6)	81	(24)	129
Balance at end of period	$ 5,732	5,042	$ 5,732	5,042
6.750% Bonds, due 2028 | Bonds
Accumulated Other Comprehensive Income (Loss) [Line Items]
Long-term debt, interest rate (as a percent)	6.75%		6.75%		6.75%
4.850% Notes, due 2031 | Notes
Accumulated Other Comprehensive Income (Loss) [Line Items]
Long-term debt, interest rate (as a percent)	4.85%		4.85%
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ (1,691)	(1,830)	$ (1,673)	(1,878)
Other comprehensive income:
Total Other comprehensive (loss) income, net of tax	(6)	81	(24)	129
Balance at end of period	(1,697)	(1,749)	(1,697)	(1,749)
Pension and other postretirement benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(588)	(669)	(592)	(672)
Other comprehensive income:
Other comprehensive income (loss) before reclassifications, before tax	0	1	0	0
Tax benefit (expense)	0	0	0	1
Total Other comprehensive income (loss) before reclassifications, net of tax	0	1	0	1
Reclassification from other comprehensive income (loss), before tax	5	3	10	6
Tax (expense) benefit	(1)	(1)	(2)	(1)
Total amount reclassified from Accumulated other comprehensive (loss) income, net of tax	4	2	8	5
Total Other comprehensive (loss) income, net of tax	4	3	8	6
Balance at end of period	(584)	(666)	(584)	(666)
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(1,084)	(1,162)	(1,052)	(1,207)
Other comprehensive income:
Total Other comprehensive (loss) income, net of tax	(10)	117	(42)	162
Balance at end of period	(1,094)	(1,045)	(1,094)	(1,045)
Cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(19)	1	(29)	1
Other comprehensive income:
Other comprehensive income (loss) before reclassifications, before tax	1	(49)	14	(50)
Tax benefit (expense)	0	11	(3)	11
Total Other comprehensive income (loss) before reclassifications, net of tax	1	(38)	11	(39)
Reclassification from other comprehensive income (loss), before tax	(1)	(2)	(1)	0
Tax (expense) benefit	0	1	0	0
Total amount reclassified from Accumulated other comprehensive (loss) income, net of tax	(1)	(1)	(1)	0
Total Other comprehensive (loss) income, net of tax	0	(39)	10	(39)
Balance at end of period	$ (19)	$ (38)	$ (19)	$ (38)

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Receivables (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Certain Customers
Schedule of Financial Receivables [Line Items]
Accounts receivables sold	$ 348	$ 223	$ 671	$ 406
Receivables Purchase Agreement
Schedule of Financial Receivables [Line Items]
Accounts receivable securitization following a provision to increase the limit	325		325
Accounts receivable securitization	250		250		$ 250
Accounts receivable securitization amount drawn	250		250		250
Financing receivables, held as collateral	296		296		$ 217
Accounts receivables sold	$ 294	$ 359	$ 651	$ 829

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Inventories - Inventories Components (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Inventory Disclosure [Abstract]
Finished goods	$ 497	$ 462
Work-in-process	1,070	885
Purchased raw materials	531	424
Operating supplies	85	78
Total inventories	$ 2,183	$ 1,849

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Inventories - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Inventory Disclosure [Abstract]
Inventories valued on a LIFO basis	$ 707	$ 642
Total inventories valued on an average-cost basis	$ 376	$ 333

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Properties, Plants, and Equipment, net - Properties, Plants, and Equipment, Net (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Property, Plant, and Equipment [Line Items]
Properties, plants, and equipment, net	$ 2,817	$ 2,593
Property, plant and equipment, excluding construction in progress
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	5,788	5,494
Less: accumulated depreciation and amortization	3,330	3,236
Properties, plants, and equipment, net	2,458	2,258
Land and land rights
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	113	85
Structures
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	1,179	1,134
Machinery and equipment
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	4,496	4,275
Construction work-in-progress
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, gross	$ 359	$ 335

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Properties, Plants, and Equipment, net - Narrative (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Property, Plant, and Equipment [Abstract]
Unpaid capital expenditures	$ 55	$ 85	$ 101

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Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Leases [Abstract]
Lease cost	$ 20	$ 18	$ 39	$ 35

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Leases - Operating Lease Assets and Liabilities in the Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Leases [Abstract]
Right-of-use assets classified in Other noncurrent assets	$ 162	$ 162
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets, Noncurrent	Other Assets, Noncurrent
Current portion of lease liabilities classified in Other current liabilities	$ 46	$ 42
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities (N)(Q)	Other current liabilities (N)(Q)
Long-term portion of lease liabilities classified in Other noncurrent liabilities and deferred credits	$ 117	$ 121
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other noncurrent liabilities and deferred credits (N)	Other noncurrent liabilities and deferred credits (N)
Total lease liabilities	$ 163	$ 163

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Debt - Schedule of Long-Term Debt (Details) € in Millions, ¥ in Millions, $ in Millions	May 22, 2026 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2026 JPY (¥)	Jun. 30, 2026 EUR (€)	May 22, 2026 JPY (¥)	Mar. 03, 2026	Dec. 31, 2025 USD ($)	Dec. 31, 2025 JPY (¥)
Debt Instrument [Line Items]
Short-term borrowings		$ 450					$ 0
Other, net		(24)					(16)
Total debt		4,501					3,050
Less: amounts due within one year		451					191
Total long-term debt		$ 4,050					2,859
6.750% Bonds, due 2028 | Currency Swap
Debt Instrument [Line Items]
Fixed interest rate (as a percent)	3.88%	3.88%	3.88%	3.88%	3.88%
Derivative liability | ¥			¥ 47,760		¥ 47,760
4.850% Notes, due 2031 | Currency Swap
Debt Instrument [Line Items]
Fixed interest rate (as a percent)		3.72%	3.72%	3.72%
Derivative liability | €				€ 458
Term Loan | JPY Term Loan Facility
Debt Instrument [Line Items]
Amount outstanding		$ 0	¥ 0				$ 191	¥ 29,702
Fixed interest rate (as a percent)							1.794%	1.794%
Impact on consolidated financial statements	$ 1
Bonds | 6.750% Bonds, due 2028
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	6.75%	6.75%	6.75%	6.75%	6.75%
Amount outstanding	$ 300	$ 300					$ 300
Notes | 3.750% Notes, due 2028
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)		3.75%	3.75%	3.75%		3.75%
Amount outstanding		$ 400					0
Notes | 3.000% Notes, due 2029
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)		3.00%	3.00%	3.00%
Amount outstanding		$ 700					700
Notes | 3.900% Notes, due 2029
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)		3.90%	3.90%	3.90%		3.90%
Amount outstanding		$ 300					0
Notes | 4.850% Notes, due 2031
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)		4.85%	4.85%	4.85%
Amount outstanding		$ 500					500
Notes | 4.550% Notes, due 2032
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)		4.55%	4.55%	4.55%
Amount outstanding		$ 500					500
Notes | 4.750% Notes, due 2036
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)		4.75%	4.75%	4.75%		4.75%
Amount outstanding		$ 500					0
Notes | 5.950% Notes, due 2037
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)		5.95%	5.95%	5.95%
Amount outstanding		$ 625					625
Loans | 4.750% Iowa Finance Authority Loan, due 2042
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)		4.75%	4.75%	4.75%
Amount outstanding		$ 250					$ 250

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Debt - Term Loan Facility (Details) ¥ in Millions, $ in Millions			6 Months Ended
	May 22, 2026 USD ($)	May 22, 2026 JPY (¥)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 JPY (¥)	Dec. 31, 2025 USD ($)	Dec. 31, 2025 JPY (¥)
Debt Instrument [Line Items]
Payment of debt			$ 186	$ 77
Term Loan | JPY Term Loan Facility
Debt Instrument [Line Items]
Payment of debt	$ 186	¥ 29,702
Amount outstanding			$ 0		¥ 0	$ 191	¥ 29,702

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Debt - Public Debt (Details) ¥ in Millions, $ in Millions	Mar. 03, 2026 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2026 JPY (¥)	May 22, 2026 USD ($)	May 22, 2026 JPY (¥)	Dec. 31, 2025 USD ($)
6.750% Bonds, due 2028 | Currency Swap
Debt Instrument [Line Items]
Derivative liability | ¥			¥ 47,760		¥ 47,760
Fixed interest rate (as a percent)		3.88%	3.88%	3.88%	3.88%
Notes | 3.750% Notes due 2028, 3.900% Notes due 2029 and 4.750% Notes due 2036
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 1,193
Notes | 3.750% Notes, due 2028
Debt Instrument [Line Items]
Aggregate principal amount	$ 400
Long-term debt, interest rate (as a percent)	3.75%	3.75%	3.75%
Amount outstanding		$ 400				$ 0
Notes | 3.900% Notes, due 2029
Debt Instrument [Line Items]
Aggregate principal amount	$ 300
Long-term debt, interest rate (as a percent)	3.90%	3.90%	3.90%
Amount outstanding		$ 300				0
Notes | 4.750% Notes, due 2036
Debt Instrument [Line Items]
Aggregate principal amount	$ 500
Long-term debt, interest rate (as a percent)	4.75%	4.75%	4.75%
Amount outstanding		$ 500				0
Bonds | 6.750% Bonds, due 2028
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)		6.75%	6.75%	6.75%	6.75%
Amount outstanding		$ 300		$ 300		$ 300

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Debt - Commercial Paper (Details) - USD ($) $ in Millions		6 Months Ended
	Feb. 09, 2026	Jun. 30, 2026	Dec. 31, 2025
Short-Term Debt [Line Items]
Short-term borrowings		$ 450	$ 0
Revolving Credit Facility | 5-Year Revolving Credit Agreement | Line of Credit
Short-Term Debt [Line Items]
Maximum borrowing capacity	$ 1,000	$ 1,000
Debt term	5 years	5 years
Commercial Paper
Short-Term Debt [Line Items]
Aggregate principal amount		$ 1,000
Short-term borrowings		$ 450	$ 0
Weighted average interest rate (as a percent)		4.018%
Line of Credit | Revolving Credit Facility | 364-Day Revolving Credit Agreement
Short-Term Debt [Line Items]
Maximum borrowing capacity	$ 600	$ 600
Debt term	364 days	364 days

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Debt - Credit Facilities (Details) $ in Millions		6 Months Ended	12 Months Ended
	Feb. 09, 2026 USD ($) extension	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)
Debt Instrument [Line Items]
Amounts outstanding		$ 0	$ 0
Borrowings		$ 0	$ 0
Line of Credit | Maximum
Debt Instrument [Line Items]
Debt covenants, net debt to consolidated EBITDA ratio		3.75
Line of Credit | Maximum | Debt Covenant Compliance, Occurrence of Material Acquisition for the Four Consecutive Fiscal Quarters
Debt Instrument [Line Items]
Debt covenants, net debt to consolidated EBITDA ratio		4.25
Other Debt
Debt Instrument [Line Items]
Debt default (in excess of)	$ 100
Revolving Credit Facility | Line of Credit | 364-Day Revolving Credit Agreement
Debt Instrument [Line Items]
Debt term	364 days	364 days
Maximum borrowing capacity	$ 600	$ 600
Commitment fee (as a percent)	0.07%
Revolving Credit Facility | Line of Credit | 364-Day Revolving Credit Agreement | Base Rate
Debt Instrument [Line Items]
Basis spread (as a percent)	0.00%
Revolving Credit Facility | Line of Credit | 364-Day Revolving Credit Agreement | Term SOFR
Debt Instrument [Line Items]
Basis spread (as a percent)	0.93%
Revolving Credit Facility | Line of Credit | 364-Day Revolving Credit Agreement | EURIBOR
Debt Instrument [Line Items]
Basis spread (as a percent)	0.93%
Revolving Credit Facility | Line of Credit | 5-Year Revolving Credit Agreement
Debt Instrument [Line Items]
Debt term	5 years	5 years
Maximum borrowing capacity	$ 1,000	$ 1,000
Number of extension requests | extension	2
Extension period	1 year
Maximum additional borrowing capacity	$ 500
Commitment fee (as a percent)	0.09%
Revolving Credit Facility | Line of Credit | 5-Year Revolving Credit Agreement | Base Rate
Debt Instrument [Line Items]
Basis spread (as a percent)	0.00%
Revolving Credit Facility | Line of Credit | 5-Year Revolving Credit Agreement | Term SOFR
Debt Instrument [Line Items]
Basis spread (as a percent)	0.91%
Revolving Credit Facility | Line of Credit | 5-Year Revolving Credit Agreement | EURIBOR
Debt Instrument [Line Items]
Basis spread (as a percent)	0.91%
Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 76
Letter of Credit | Line of Credit | 5-Year Revolving Credit Agreement
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 500

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Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Jun. 30, 2026	Dec. 31, 2025
Fair Value Disclosures [Abstract]
Additions to investments	$ 2
Restricted cash		$ 1	$ 1

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Fair Value of Financial Instruments - Schedule of Carrying Values and Fair Values of Other Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Carrying value
Derivative [Line Items]
Available-for-sale securities	$ 18	$ 18
Held-to-maturity investments	3	5
Long-term debt, less long-term debt due within one year	4,050	2,859
Fair value | Level 1
Derivative [Line Items]
Available-for-sale securities	18	18
Fair value | Level 2
Derivative [Line Items]
Held-to-maturity investments	3	5
Long-term debt, less long-term debt due within one year	$ 4,034	$ 2,919

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Contingencies, Commitments, and Other Liabilities (Details) € in Millions, $ in Millions							3 Months Ended		6 Months Ended	12 Months Ended
	Apr. 16, 2026 USD ($)	Apr. 16, 2026 EUR (€)	Jul. 23, 2024 USD ($)	Jul. 23, 2024 EUR (€)	Mar. 31, 2023 USD ($)	Mar. 31, 2023 EUR (€)	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)	Jun. 30, 2026 USD ($) location	Dec. 31, 2023 USD ($)	Dec. 31, 2023 EUR (€)
Loss Contingencies [Line Items]
Number of cleanup locations | location									30
Remediation reserve balance							$ 16	$ 16	$ 16
Remediation reserve balance, classified as a current liability							7	$ 7	7
Payments related to remediation expenses applied against the reserve (less than)							1		1
Income tax reserve										$ 21	€ 19
Total amount committed under outstanding surety bonds							43		43
Surety bonds, amount outstanding							$ 19		$ 19
Termination notice period (in days)									30 days
Payment timing (in days)							120 days		120 days
Supplier Finance Program, Obligation, Current, Statement of Financial Position [Extensible Enumeration]							Accounts payable, trade (Q)	Accounts payable, trade (Q)	Accounts payable, trade (Q)
Supplier invoices subject to future payment							$ 377	$ 266	$ 377
Combined fair value of guarantees							5	5	$ 5
Indemnification of liability (as a percent)									50.00%
Coverage limit								80
Guarantees of third party related to project financing							4		$ 4
Letter of Credit
Loss Contingencies [Line Items]
Maximum borrowing capacity							76		76
Location, Statement of Financial Position, Balance [Axis]: us-gaap:DeferredCreditsAndOtherLiabilitiesNoncurrent | Separation Agreement
Loss Contingencies [Line Items]
Guarantees of third party related to project financing							1,141	$ 1,141	$ 1,141
France | Ministry of the Economy, Finance and Industry, France | Tax Years 2010 Through 2012
Loss Contingencies [Line Items]
Income tax assessment, estimate of possible loss			$ 7	€ 7	$ 17	€ 16
Recurring Costs of Managing Hazardous Substances and Environmental Programs
Loss Contingencies [Line Items]
Percentage of cost of goods sold (less than as a percent)									1.00%
Income Tax and Interest | France | Ministry of the Economy, Finance and Industry, France | Tax Years 2010 Through 2012
Loss Contingencies [Line Items]
Income tax assessment, estimate of possible loss			$ 10	€ 9	10	9
Income Tax Penalties | France | Ministry of the Economy, Finance and Industry, France | Tax Years 2010 Through 2012
Loss Contingencies [Line Items]
Income tax assessment, estimate of possible loss	$ 4	€ 3			7	7
Additional Interest on Income Tax | France | Ministry of the Economy, Finance and Industry, France | Tax Years 2010 Through 2012
Loss Contingencies [Line Items]
Income tax assessment, estimate of possible loss					$ 2	€ 2
Alcoa Corporation Workers Compensation Claims
Loss Contingencies [Line Items]
Letters of credit, total amount outstanding							43		$ 43
Arconic Corporation Environmental Obligations
Loss Contingencies [Line Items]
Letters of credit, total amount outstanding							$ 8		$ 8