Taxes on Earnings Schedule of Deferred Tax Liabilities and Assets (Details) - USD ($) $ in Millions	Aug. 02, 2020	Jul. 28, 2019
Income Tax Disclosure [Abstract]
Deferred Tax Liabilities, Property, Plant and Equipment	$ 319	$ 336
Deferred Tax Liabilities, Goodwill and Intangible Assets	856	877
Deferred Tax Liabilities, Other	9	16
Deferred Tax Liabilities, Gross	1,184	1,229
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits	144	157
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions	58	46
Deferred Tax Assets, Operating Loss Carryforwards	31	43
Deferred Tax Assets, Capital Loss Carryforwards	95	287
Deferred Tax Asset, Parent's Basis in Discontinued Operation	0	116
Deferred Tax Assets, Other	65	82
Deferred Tax Assets, Gross	393	731
Deferred Tax Assets, Valuation Allowance	(122)	(427)
Deferred Tax Assets, Net of Valuation Allowance	271	304
Deferred Tax Liabilities, Net	$ 913	$ 925