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v3.19.2

Fair Value - Assets and Liabilities Measured At Fair Value On Recurring Basis (Details) - USD ($) $ in Millions | Jul. 27, 2019 | Jul. 28, 2018
--- | --- | ---
Assets: |  |
Available-for-sale debt investments | $ 21,660 | $ 37,009
Marketable equity securities | 3 | 605
Derivative assets | 89 | 2
Liabilities, Fair Value Disclosure [Abstract] |  |
Derivative liabilities | 15 | 74
U.S. government securities |  |
Assets: |  |
Available-for-sale debt investments | 808 | 7,275
U.S. government agency securities |  |
Assets: |  |
Available-for-sale debt investments | 169 | 727
Non-U.S. government and agency securities |  |
Assets: |  |
Available-for-sale debt investments |  | 208
Corporate debt securities |  |
Assets: |  |
Available-for-sale debt investments | 19,262 | 27,364
Recurring |  |
Assets: |  |
Marketable equity securities | 3 | 605
Derivative assets | 89 | 2
Total | 31,835 | 44,506
Liabilities, Fair Value Disclosure [Abstract] |  |
Derivative liabilities | 15 | 74
Total | 15 | 74
Recurring | U.S. government securities |  |
Assets: |  |
Available-for-sale debt investments | 808 | 7,275
Recurring | U.S. government agency securities |  |
Assets: |  |
Available-for-sale debt investments | 169 | 727
Recurring | Non-U.S. government and agency securities |  |
Assets: |  |
Available-for-sale debt investments | 0 | 208
Recurring | Corporate debt securities |  |
Assets: |  |
Available-for-sale debt investments | 19,262 | 27,364
Recurring | U.S. agency mortgage-backed securities |  |
Assets: |  |
Available-for-sale debt investments | 1,421 | 1,435
Recurring | Money market funds |  |
Assets: |  |
Cash equivalents | 10,083 | 6,890
Recurring | Level 1 |  |
Assets: |  |
Marketable equity securities | 3 | 605
Derivative assets | 0 | 0
Total | 10,086 | 7,495
Liabilities, Fair Value Disclosure [Abstract] |  |
Derivative liabilities | 0 | 0
Total | 0 | 0
Recurring | Level 1 | U.S. government securities |  |
Assets: |  |
Available-for-sale debt investments | 0 | 0
Recurring | Level 1 | U.S. government agency securities |  |
Assets: |  |
Available-for-sale debt investments | 0 | 0
Recurring | Level 1 | Non-U.S. government and agency securities |  |
Assets: |  |
Available-for-sale debt investments | 0 | 0
Recurring | Level 1 | Corporate debt securities |  |
Assets: |  |
Available-for-sale debt investments | 0 | 0
Recurring | Level 1 | U.S. agency mortgage-backed securities |  |
Assets: |  |
Available-for-sale debt investments | 0 | 0
Recurring | Level 1 | Money market funds |  |
Assets: |  |
Cash equivalents | 10,083 | 6,890
Recurring | Level 2 |  |
Assets: |  |
Marketable equity securities | 0 | 0
Derivative assets | 89 | 2
Total | 21,749 | 37,011
Liabilities, Fair Value Disclosure [Abstract] |  |
Derivative liabilities | 15 | 74
Total | 15 | 74
Recurring | Level 2 | U.S. government securities |  |
Assets: |  |
Available-for-sale debt investments | 808 | 7,275
Recurring | Level 2 | U.S. government agency securities |  |
Assets: |  |
Available-for-sale debt investments | 169 | 727
Recurring | Level 2 | Non-U.S. government and agency securities |  |
Assets: |  |
Available-for-sale debt investments | 0 | 208
Recurring | Level 2 | Corporate debt securities |  |
Assets: |  |
Available-for-sale debt investments | 19,262 | 27,364
Recurring | Level 2 | U.S. agency mortgage-backed securities |  |
Assets: |  |
Available-for-sale debt investments | 1,421 | 1,435
Recurring | Level 2 | Money market funds |  |
Assets: |  |
Cash equivalents | $ 0 | $ 0

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