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Restructuring Activities | 6 Months Ended
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Mar. 31, 2025
Restructuring and Related Activities [Abstract] |
Restructuring Activities | NOTE D – RESTRUCTURING ACTIVITIES Ashland periodically implements restructuring programs related to acquisitions, divestitures and other cost reduction programs in order to enhance profitability through streamlined operations and an improved overall cost structure. During fiscal 2025, Ashland initiated a restructuring plan to offset the impact from the Nutraceuticals business sale completed in fiscal 2024 and other portfolio optimization actions. As a part of this program, Ashland is also advancing a multi-year manufacturing optimization restructuring plan to improve operational cost and strengthen its competitive position. During the three and six months ended March 31, 2025, Ashland incurred $13 million of accelerated depreciation for product line optimization activities associated with a Life Sciences manufacturing facility, which was recorded within the cost of sales caption of the Statements of Condensed Consolidated Comprehensive Income (Loss). During fiscal 2023, Ashland implemented targeted organizational restructuring actions to reduce costs. This program continued into fiscal 2024 and 2025. During the three and six months ended March 31, 2024, Ashland incurred $27 million and $49 million, respectively, of accelerated depreciation for product line optimization activities associated with two Specialty Additives manufacturing facilities, which was recorded within the cost of sales caption of the Statements of Condensed Consolidated Comprehensive Income (Loss). The following tables detail the amount of restructuring severance expense related to these programs.
| Three months ended March 31, 2025 |  |  | Three months ended March 31, 2024 |
(In millions) | Severance expense(a) |  |  | Utilization (cash paid) |  |  | Severance expense(a) |  |  | Utilization (cash paid) |
2025 Restructuring program | $ | 8 |  |  | $ | (5 | ) |  | $ | — |  |  | $ | — |
2023 Restructuring program |  | — |  |  |  | (8 | ) |  |  | 18 |  |  |  | (1 | )
Total | $ | 8 |  |  | $ | (13 | ) |  | $ | 18 |  |  | $ | (1 | )
(a) Severance expense is recorded within the selling, general and administrative expense caption of the Statements of Condensed Consolidated Comprehensive Income (Loss) for the three months ended March 31, 2025 and 2024.
| Six months ended March 31, 2025 |  |  | Six months ended March 31, 2024 |
(In millions) | Severance expense (income)(a) |  |  | Utilization (cash paid) |  |  | Severance expense(a) |  |  | Utilization (cash paid) |
2025 Restructuring program | $ | 12 |  |  | $ | (6 | ) |  | $ | — |  |  | $ | — |
2023 Restructuring program |  | (2 | ) |  |  | (9 | ) |  |  | 21 |  |  |  | (4 | )
Total | $ | 10 |  |  | $ | (15 | ) |  | $ | 21 |  |  | $ | (4 | )
(a) Severance expense is recorded within the selling, general and administrative expense caption of the Statements of Condensed Consolidated Comprehensive Income (Loss) for the six months ended March 31, 2025 and 2024. The following table details at March 31, 2025 the amount of restructuring severance liabilities related to these programs.
(In millions) | 2025 Restructuring Program |  |  | 2023 Restructuring Program |
Balance at September 30, 2024(a) | $ | — |  |  | $ | 18 |
Restructuring reserve |  | 12 |  |  |  | (2 | )
Utilization (cash paid) |  | (6 | ) |  |  | (9 | )
Balance at March 31, 2025(a) | $ | 6 |  |  | $ | 7 |
(a) The restructuring severance liability associated with these programs is recorded within accrued expenses and other liabilities in the Condensed Consolidated Balance Sheets at March 31, 2025 and September 30, 2024.

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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/420/tableOfContent Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
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