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Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 6 Months Ended
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Mar. 31, 2026
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | Note 4—Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents The Company reconciles cash, cash equivalents, restricted cash and restricted cash equivalents reported on the consolidated balance sheets that aggregate to the beginning and ending balances shown in the consolidated statements of cash flows as follows:
| March 31, 2026 |  | September 30, 2025
| (in millions)
Cash and cash equivalents | $ | 12,404 |  |  | $ | 17,164 |
Restricted cash and restricted cash equivalents: |  |  |
U.S. litigation escrow | 665 |  |  | 2,990 |
Customer collateral | 4,292 |  |  | 3,625 |
Prepaid expenses and other current assets | 1,345 |  |  | 1,208 |
Cash, cash equivalents, restricted cash and restricted cash equivalents | $ | 18,706 |  |  | $ | 24,987 |

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- Definition The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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- References No definition available. + Details
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