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Available-for-Sale Debt and Equity Investments - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Oct. 29, 2022 | Oct. 30, 2021 | Jul. 30, 2022
Schedule of Investments [Line Items] |  |  |
Net unsettled investment purchases | $ 42 |  |
Net unsettled investment sales |  |  | $ 70
Marketable equity securities | 245 |  | 241
Net unrealized gain (loss) on marketable securities | (20) | $ 5 |
Net loss (gain) on non-marketable equity securities measured using the measurement alternative | 12 | $ (2) |
Investments in privately held companies | 1,800 |  | 1,900
Funding commitments | 300 |  |
Variable Interest Entity, Not Primary Beneficiary |  |  |
Schedule of Investments [Line Items] |  |  |
Investments in privately held companies | 1,100 |  |
Private equity funds | Fair value measured at NAV per share |  |  |
Schedule of Investments [Line Items] |  |  |
Equity interests held in certain private equity funds | $ 1,000 |  | $ 1,100

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