Restructuring and Other Charges - Schedule of Activities Related to Restructuring and Other Charges (Details) - USD ($) $ in Millions	6 Months Ended
	Jan. 29, 2022	Jan. 23, 2021
Restructuring Reserve [Roll Forward]
Liability, beginning of period	$ 34	$ 72
Charges	8	836
Cash payments	(17)	(767)
Non-cash items	(5)	(21)
Liability, end of period	20	120
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	(5)	2
Cash payments	(1)	(3)
Non-cash items	0	0
Liability, end of period	4	13
FISCAL 2021 PLAN | Employee Severance
Restructuring Reserve [Roll Forward]
Liability, beginning of period	16	0
Charges	10	804
Cash payments	(16)	(703)
Non-cash items	0	0
Liability, end of period	10	101
FISCAL 2021 PLAN | Other
Restructuring Reserve [Roll Forward]
Liability, beginning of period	8	0
Charges	3	30
Cash payments	0	(3)
Non-cash items	(5)	(21)
Liability, end of period	$ 6	$ 6