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Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions | Jan. 28, 2023 | Jul. 30, 2022
--- | --- | ---
Assets: |  |
Available-for-sale debt investments: | $ 12,772 | $ 11,947
Marketable equity securities | 280 | 241
Derivative assets | 36 | 78
Total | 20,775 | 17,813
Liabilities: |  |
Derivative liabilities | 73 | 89
Total | 73 | 89
Money market funds |  |
Assets: |  |
Other assets: | 1,500 | 1,500
U.S. government securities |  |
Assets: |  |
Available-for-sale debt investments: | 1,998 | 1,238
U.S. government agency securities |  |
Assets: |  |
Available-for-sale debt investments: | 164 | 138
Non-U.S. government and agency securities |  |
Assets: |  |
Available-for-sale debt investments: | 353 | 272
Corporate debt securities |  |
Assets: |  |
Available-for-sale debt investments: | 7,140 | 7,818
U.S. agency mortgage-backed securities |  |
Assets: |  |
Available-for-sale debt investments: | 1,827 | 1,976
Commercial paper |  |
Assets: |  |
Available-for-sale debt investments: | 1,029 | 255
Certificates of deposit |  |
Assets: |  |
Available-for-sale debt investments: | 261 | 250
Money market funds |  |
Assets: |  |
Cash equivalents: | 5,038 | 3,930
Commercial paper |  |
Assets: |  |
Cash equivalents: | 1,037 | 72
Corporate debt securities |  |
Assets: |  |
Cash equivalents: | 41 | 1
U.S. government securities |  |
Assets: |  |
Cash equivalents: | 40 | 12
Certificates of deposit |  |
Assets: |  |
Cash equivalents: | 31 | 32
Level 1 |  |
Assets: |  |
Marketable equity securities | 280 | 241
Derivative assets | 0 | 0
Total | 6,818 | 5,671
Liabilities: |  |
Derivative liabilities | 0 | 0
Total | 0 | 0
Level 1 | Money market funds |  |
Assets: |  |
Other assets: | 1,500 | 1,500
Level 1 | U.S. government securities |  |
Assets: |  |
Available-for-sale debt investments: | 0 | 0
Level 1 | U.S. government agency securities |  |
Assets: |  |
Available-for-sale debt investments: | 0 | 0
Level 1 | Non-U.S. government and agency securities |  |
Assets: |  |
Available-for-sale debt investments: | 0 | 0
Level 1 | Corporate debt securities |  |
Assets: |  |
Available-for-sale debt investments: | 0 | 0
Level 1 | U.S. agency mortgage-backed securities |  |
Assets: |  |
Available-for-sale debt investments: | 0 | 0
Level 1 | Commercial paper |  |
Assets: |  |
Available-for-sale debt investments: | 0 | 0
Level 1 | Certificates of deposit |  |
Assets: |  |
Available-for-sale debt investments: | 0 | 0
Level 1 | Money market funds |  |
Assets: |  |
Cash equivalents: | 5,038 | 3,930
Level 1 | Commercial paper |  |
Assets: |  |
Cash equivalents: | 0 | 0
Level 1 | Corporate debt securities |  |
Assets: |  |
Cash equivalents: | 0 | 0
Level 1 | U.S. government securities |  |
Assets: |  |
Cash equivalents: | 0 | 0
Level 1 | Certificates of deposit |  |
Assets: |  |
Cash equivalents: | 0 | 0
Level 2 |  |
Assets: |  |
Marketable equity securities | 0 | 0
Derivative assets | 36 | 78
Total | 13,957 | 12,142
Liabilities: |  |
Derivative liabilities | 73 | 89
Total | 73 | 89
Level 2 | Money market funds |  |
Assets: |  |
Other assets: | 0 | 0
Level 2 | U.S. government securities |  |
Assets: |  |
Available-for-sale debt investments: | 1,998 | 1,238
Level 2 | U.S. government agency securities |  |
Assets: |  |
Available-for-sale debt investments: | 164 | 138
Level 2 | Non-U.S. government and agency securities |  |
Assets: |  |
Available-for-sale debt investments: | 353 | 272
Level 2 | Corporate debt securities |  |
Assets: |  |
Available-for-sale debt investments: | 7,140 | 7,818
Level 2 | U.S. agency mortgage-backed securities |  |
Assets: |  |
Available-for-sale debt investments: | 1,827 | 1,976
Level 2 | Commercial paper |  |
Assets: |  |
Available-for-sale debt investments: | 1,029 | 255
Level 2 | Certificates of deposit |  |
Assets: |  |
Available-for-sale debt investments: | 261 | 250
Level 2 | Money market funds |  |
Assets: |  |
Cash equivalents: | 0 | 0
Level 2 | Commercial paper |  |
Assets: |  |
Cash equivalents: | 1,037 | 72
Level 2 | Corporate debt securities |  |
Assets: |  |
Cash equivalents: | 41 | 1
Level 2 | U.S. government securities |  |
Assets: |  |
Cash equivalents: | 40 | 12
Level 2 | Certificates of deposit |  |
Assets: |  |
Cash equivalents: | $ 31 | $ 32

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