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Restructuring and Other Charges - Schedule of Activities Related to Restructuring and Other Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 30, 2021	Oct. 24, 2020
Restructuring Reserve [Roll Forward]
Liability, beginning of period	$ 34	$ 72
Charges	5	602
Cash payments	(9)	(330)
Non-cash items	(4)	(11)
Liability, end of period	26	333
FISCAL 2020 AND PRIOR PLANS | Employee Severance
Restructuring Reserve [Roll Forward]
Liability, beginning of period	0	58
Charges	0	0
Cash payments	0	(58)
Non-cash items	0	0
Liability, end of period	0	0
FISCAL 2020 AND PRIOR PLANS | Other
Restructuring Reserve [Roll Forward]
Liability, beginning of period	10	14
Charges	(1)	0
Cash payments	(1)	0
Non-cash items	0	0
Liability, end of period	8	14
FISCAL 2021 PLAN | Employee Severance
Restructuring Reserve [Roll Forward]
Liability, beginning of period	16	0
Charges	4	590
Cash payments	(8)	(272)
Non-cash items	0	0
Liability, end of period	12	318
FISCAL 2021 PLAN | Other
Restructuring Reserve [Roll Forward]
Liability, beginning of period	8	0
Charges	2	12
Cash payments	0	0
Non-cash items	(4)	(11)
Liability, end of period	$ 6	$ 1

X

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
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-Paragraph 1
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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