Financial Instruments (Schedule Of The Fair Value Of Derivative Instruments) (Details) - USD ($) $ in Millions	May 03, 2026	Aug. 03, 2025
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 34	$ 15
Derivative Liability, Fair Value, Gross Liability	18	14
Derivatives Designated As Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	11	3
Derivatives Designated As Hedges [Member] \| Foreign Exchange Contract [Member] \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccruedLiabilitiesCurrent \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	1	3
Derivatives Designated As Hedges [Member] \| Interest Rate Swap [Member] \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherLiabilitiesNoncurrent \| Fair Value Hedging
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	10	0
Derivatives Not Designated As Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	34	15
Derivative Liability, Fair Value, Gross Liability	7	11
Derivatives Not Designated As Hedges [Member] \| Foreign Exchange Contract [Member] \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsCurrent
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	1	2
Derivatives Not Designated As Hedges [Member] \| Commodity Derivative Contracts [Member] \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccruedLiabilitiesCurrent
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	7	11
Derivatives Not Designated As Hedges [Member] \| Commodity Derivative Contracts [Member] \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsCurrent
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	28	12
Derivatives Not Designated As Hedges [Member] \| Equity Contracts [Member] \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsCurrent
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 5	$ 1