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Goodwill and Purchased Intangible Assets - Schedule of Goodwill by Reportable Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 25, 2020
Goodwill [Roll Forward]
Beginning balance	$ 33,806	$ 33,529
Acquisitions & Divestitures	4,214	198
Foreign Currency Translation and Other	148	79
Ending balance	38,168	33,806
Americas
Goodwill [Roll Forward]
Beginning balance	21,304	21,120
Acquisitions & Divestitures	2,275	132
Foreign Currency Translation and Other	94	52
Ending balance	23,673	21,304
EMEA
Goodwill [Roll Forward]
Beginning balance	8,040	7,977
Acquisitions & Divestitures	1,019	44
Foreign Currency Translation and Other	35	19
Ending balance	9,094	8,040
APJC
Goodwill [Roll Forward]
Beginning balance	4,462	4,432
Acquisitions & Divestitures	920	22
Foreign Currency Translation and Other	19	8
Ending balance	$ 5,401	$ 4,462

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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