Investments - Maturities of Available-for-Sale Debt Investments (Details) - USD ($) $ in Millions	Oct. 28, 2023	Jul. 29, 2023
Amortized Cost
Within 1 year	$ 4,201
After 1 year through 5 years	7,627
After 5 years through 10 years	9
After 10 years	2
Mortgage-backed securities with no single maturity	2,431
Amortized Cost	14,270	$ 16,199
Fair Value
Within 1 year	4,152
After 1 year through 5 years	7,236
After 5 years through 10 years	9
After 10 years	2
Mortgage-backed securities with no single maturity	2,113
Fair Value	$ 13,512	$ 15,592

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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