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Restructuring and Related Costs - Schedule of Restructuring Reserve by Type of Cost (Details) $ in Millions | 12 Months Ended
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Sep. 30, 2025 USD ($)
Restructuring Reserve [Roll Forward] |
Restructuring reserve, beginning balance | $ 164
Utilized—cash | (87)
Utilized—noncash | (40)
Other | 7
Restructuring reserve, ending balance | 44
Employee Severance and Termination Benefits |
Restructuring Reserve [Roll Forward] |
Restructuring reserve, beginning balance | 100
Utilized—cash | (69)
Utilized—noncash | 0
Other | 8
Restructuring reserve, ending balance | 39
Long-Lived Asset Impairments |
Restructuring Reserve [Roll Forward] |
Restructuring reserve, beginning balance | 40
Utilized—cash | 0
Utilized—noncash | (40)
Other | 0
Restructuring reserve, ending balance | 0
Other |
Restructuring Reserve [Roll Forward] |
Restructuring reserve, beginning balance | 24
Utilized—cash | (18)
Utilized—noncash | 0
Other | (1)
Restructuring reserve, ending balance | $ 5

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- Definition Restructuring Costs, Other + References No definition available. + Details
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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: 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 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 17 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-17 + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + 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.b.2) -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 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of decrease in the reserve for full or partial settlement through consideration other than cash. + 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.b.2) -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 + Details
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