Income Taxes - Aggregate Changes in Gross Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
Jul. 27, 2024	Jul. 29, 2023	Jul. 30, 2022
Unrecognized Tax Benefits [Roll Forward]
Beginning balance	$ 2,137	$ 3,101	$ 3,106
Additions based on tax positions related to the current year	205	159	157
Additions for tax positions of prior years	256	261	74
Reductions for tax positions of prior years	(344)	(265)	(81)
Settlements	(53)	(1,063)	(69)
Lapse of statute of limitations	(45)	(56)	(86)
Ending balance	$ 2,156	$ 2,137	$ 3,101

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

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-Topic 740
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-Name Accounting Standards Codification
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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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