LONG-TERM DEBT - Line of Credit Facilities (Details) - USD ($) $ in Millions	6 Months Ended
	Jan. 29, 2022	Jul. 31, 2021
Line of Credit Facility [Line Items]
Availability	$ 2,096
Unused credit	991
ABL Loans
Line of Credit Facility [Line Items]
Availability	$ 990
Revolving credit facility | ABL Credit Facility
Line of Credit Facility [Line Items]
Unused facility fees (as a percent)	0.25%
Revolving credit facility | ABL Credit Facility | Minimum
Line of Credit Facility [Line Items]
Unused facility fees (as a percent)	0.25%
Revolving credit facility | ABL Credit Facility | Maximum
Line of Credit Facility [Line Items]
Unused facility fees (as a percent)	0.375%
Letter of credit
Line of Credit Facility [Line Items]
Availability	$ 115
Letter of credit | ABL Credit Facility
Line of Credit Facility [Line Items]
Letter of credit fees (as a percent)	1.375%
Letter of credit | ABL Credit Facility | Minimum
Line of Credit Facility [Line Items]
Letter of credit fees (as a percent)	1.125%
Letter of credit | ABL Credit Facility | Maximum
Line of Credit Facility [Line Items]
Letter of credit fees (as a percent)	1.625%
Line of credit | Revolving credit facility | ABL Credit Facility | Base rate
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	0.25%
Line of credit | Revolving credit facility | ABL Credit Facility | Base rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	0.00%
Line of credit | Revolving credit facility | ABL Credit Facility | Base rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	0.50%
Line of credit | Revolving credit facility | ABL Credit Facility | LIBOR and BA
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	1.25%
Line of credit | Revolving credit facility | ABL Credit Facility | LIBOR and BA | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	1.00%
Line of credit | Revolving credit facility | ABL Credit Facility | LIBOR and BA | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	1.50%
Line of credit | Revolving credit facility | Certain inventory assets included in Inventories, net and Current assets of discontinued operations
Line of Credit Facility [Line Items]
Debt instrument, collateral amount	$ 2,454	$ 2,297
Line of credit | Revolving credit facility | Certain receivables included in Accounts receivable, net and Current assets of discontinued operations
Line of Credit Facility [Line Items]
Debt instrument, collateral amount	$ 1,158	$ 1,041