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Income Taxes (Tables) | 12 Months Ended
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Sep. 30, 2025
Income Tax Disclosure [Abstract] |
Schedule of Income before Income Tax, Domestic and Foreign | Selected income tax data (in millions):
|  | 2025 |  | 2024 |  | 2023
Components of Income before income taxes |  |  |  |  |  |
United States |  | $ | 280 |  |  | $ | 389 |  |  | $ | 794 |
Non-United States |  | 637 |  |  | 711 |  |  | 814 |
Total |  | $ | 917 |  |  | $ | 1,100 |  |  | $ | 1,608 |
Schedule of Components of Income Tax Expense (Benefit) |
Components of Income tax provision |  |  |  |  |  |
Current |  |  |  |  |  |
United States |  | $ | 97 |  |  | $ | 78 |  |  | $ | 221 |
Non-United States |  | 169 |  |  | 128 |  |  | 160 |
State and local |  | 16 |  |  | 14 |  |  | 49 |
Total current |  | 282 |  |  | 220 |  |  | 430 |
Deferred |  |  |  |  |  |
United States |  | (87) |  |  | (42) |  |  | (85) |
Non-United States |  | (11) |  |  | (12) |  |  | 6 |
State and local |  | (16) |  |  | (14) |  |  | (21) |
Total deferred |  | (114) |  |  | (68) |  |  | (100) |
Income tax provision |  | $ | 168 |  |  | $ | 152 |  |  | $ | 330 |
Total income taxes paid |  | $ | 356 |  |  | $ | 479 |  |  | $ | 345 |
Schedule of Effective Income Tax Rate Reconciliation | The reconciliation between the U.S. federal statutory rate and our effective tax rate was:
|  | 2025 |  | 2024 |  | 2023
Statutory tax rate |  | 21.0 | % |  | 21.0 | % |  | 21.0 | %
State and local income taxes |  | (0.1) |  |  | 0.2 |  |  | 1.5 |
Non-United States taxes |  | (3.8) |  |  | (4.2) |  |  | (4.7) |
Repatriation of foreign earnings |  | 1.0 |  |  | 0.9 |  |  | 0.9 |
Foreign-derived intangible income |  | (1.5) |  |  | (0.7) |  |  | (0.6) |
Settlements with taxing authorities and tax refund claims |  | 0.6 |  |  | (1.2) |  |  | 0.3 |
Change in valuation allowance (1) |  | 3.6 |  |  | 0.5 |  |  | 4.1 |
Share-based compensation |  | (1.1) |  |  | (0.2) |  |  | (0.6) |
Research and development tax credit |  | (2.9) |  |  | (2.0) |  |  | (1.3) |
Other |  | 1.5 |  |  | (0.5) |  |  | (0.1) |
Effective income tax rate |  | 18.3 | % |  | 13.8 | % |  | 20.5 | %
(1) During fiscal year 2025 and 2023, the effective tax rate increased by 3.6% and 4.1%, respectively, resulting from a valuation allowance recorded on certain deferred tax assets of the Sensia joint venture and tax effects of the related impairment.
Schedule of Deferred Tax Assets and Liabilities | The tax effects of temporary differences that give rise to our net deferred income tax assets (liabilities) consists of (in millions):
|  | 2025 |  | 2024
Deferred income tax assets |  |  |  |
Compensation and benefits |  | $ | 31 |  |  | $ | 18 |
Inventory |  | 24 |  |  | 23 |
Returns, rebates, and incentives |  | 61 |  |  | 62 |
Retirement benefits |  | 45 |  |  | 88 |
Environmental remediation and other site-related costs |  | 25 |  |  | 24 |
Share-based compensation |  | 23 |  |  | 26 |
Other accruals and reserves |  | 470 |  |  | 386 |
Net operating loss carryforwards |  | 62 |  |  | 70 |
Tax credit carryforwards |  | 13 |  |  | 14 |
Capital loss carryforwards |  | 16 |  |  | 15 |
Other |  | 125 |  |  | 58 |
Subtotal |  | 895 |  |  | 784 |
Valuation allowance |  | (129) |  |  | (98) |
Net deferred income tax assets |  | 766 |  |  | 686 |
Deferred income tax liabilities |  |  |  |
Property |  | (60) |  |  | (52) |
Intangible assets |  | (105) |  |  | (120) |
Investments |  | — |  |  | — |
Unremitted earnings of foreign subsidiaries |  | (45) |  |  | (37) |
Other |  | — |  |  | — |
Deferred income tax liabilities |  | (210) |  |  | (209) |
Total net deferred income tax assets |  | $ | 556 |  |  | $ | 477 |
Schedule of Tax Attributes and Valuation Allowances | Tax attributes and related valuation allowances at September 30, 2025 consists of (in millions):
Tax attributes and related valuation allowances |  | Tax Benefit Amount |  | Valuation Allowance |  | Carryforward Period Ends
Non-United States net operating loss carryforward |  | $ | 5 |  |  | $ | — |  |  | 2026 | - | 9/30/2044
Non-United States net operating loss carryforward |  | 52 |  |  | 52 |  |  | Indefinite
Non-United States capital loss carryforward |  | 16 |  |  | 16 |  |  | Indefinite
State and local net operating loss carryforward |  | 5 |  |  | 1 |  |  | 2026 | - | 2045
State tax credit carryforward |  | 13 |  |  | — |  |  | 2033 | - | 2040
Subtotal |  | 91 |  |  | 69 |  |  |  |  |
Other deferred tax assets |  | 60 |  |  | 60 |  |  | Indefinite
Total |  | $ | 151 |  |  | $ | 129 |  |  |  |  |
Schedule of Unrecognized Tax Benefits Roll Forward | A reconciliation of our gross unrecognized tax benefits, excluding interest and penalties, is as follows (in millions):
|  | 2025 |  | 2024 |  | 2023
Gross unrecognized tax benefits balance at beginning of year |  | $ | 25 |  |  | $ | 10 |  |  | $ | 4 |
Additions based on tax positions related to the current year |  | 5 |  |  | 5 |  |  | 4 |
Additions based on tax positions related to prior years |  | 2 |  |  | 10 |  |  | 3 |
Reductions related to settlements with taxing authorities |  | (1) |  |  | — |  |  | (1) |
Reductions related to lapses of statute of limitations |  | (2) |  |  | — |  |  | — |
Gross unrecognized tax benefits balance at end of year |  | $ | 29 |  |  | $ | 25 |  |  | $ | 10 |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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