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v3.25.2

Fair Value Measurements - Schedule of financial assets and liabilities measured at fair value (Details) - USD ($) $ in Millions | Jul. 31, 2025 | Jul. 31, 2024
--- | --- | ---
Assets: |  |
Cash equivalents, primarily money market funds | $ 2,884 | $ 3,609
Fair Value, Measurements, Recurring |  |
Assets: |  |
Cash equivalents, primarily money market funds | 1,790 | 2,538
Available-for-sale debt securities: |  |
Total available-for-sale debt securities | 1,818 | 615
Total assets measured at fair value on a recurring basis | 3,608 | 3,153
Fair Value, Measurements, Recurring | Corporate notes |  |
Available-for-sale debt securities: |  |
Total available-for-sale debt securities | 502 | 456
Fair Value, Measurements, Recurring | U.S. agency securities |  |
Available-for-sale debt securities: |  |
Total available-for-sale debt securities | 1,316 | 159
Fair Value, Measurements, Recurring | Level 1 |  |
Assets: |  |
Cash equivalents, primarily money market funds | 1,790 | 2,538
Available-for-sale debt securities: |  |
Total available-for-sale debt securities | 0 | 0
Total assets measured at fair value on a recurring basis | 1,790 | 2,538
Fair Value, Measurements, Recurring | Level 1 | Corporate notes |  |
Available-for-sale debt securities: |  |
Total available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 1 | U.S. agency securities |  |
Available-for-sale debt securities: |  |
Total available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 2 |  |
Assets: |  |
Cash equivalents, primarily money market funds | 0 | 0
Available-for-sale debt securities: |  |
Total available-for-sale debt securities | 1,818 | 615
Total assets measured at fair value on a recurring basis | 1,818 | 615
Fair Value, Measurements, Recurring | Level 2 | Corporate notes |  |
Available-for-sale debt securities: |  |
Total available-for-sale debt securities | 502 | 456
Fair Value, Measurements, Recurring | Level 2 | U.S. agency securities |  |
Available-for-sale debt securities: |  |
Total available-for-sale debt securities | $ 1,316 | $ 159

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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