Financial Instruments (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 02, 2024	Apr. 27, 2025	Apr. 28, 2024	Apr. 27, 2025	Apr. 28, 2024	Jul. 28, 2024
Derivative Instruments, Gain (Loss) [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months				$ (4)
Other Current Assets [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Margin Deposit Assets		$ 2		$ 2		$ 2
Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Maximum Length of Time, Foreign Currency Cash Flow Hedge				18 months
Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
OCI, before Reclassifications, before Tax, Attributable to Parent		(5)	$ 1	$ (2)	$ 4
Treasury Lock [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount		0		0		0
Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount		0		0		0
OCI, before Reclassifications, before Tax, Attributable to Parent		0	$ 12	$ 0	$ (11)
Commodity Derivative Contracts [Member] | Maximum [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Term of Contract				18 months
Equity Contracts [Member] | Maximum [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Term of Contract				12 months
Derivatives Designated As Hedges [Member] | Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount		129		$ 129		108
Derivatives Designated As Hedges [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 700
Derivatives Designated As Hedges [Member] | Interest Rate Contract [Member] | Maximum [Member]
Derivative Instruments, Gain (Loss) [Line Items]
OCI, before Reclassifications, before Tax, Attributable to Parent	$ 1
Derivatives Designated As Hedges [Member] | Commodity Derivative Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount		0		0		0
Derivatives Not Designated As Hedges [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount		464		464		189
Derivatives Not Designated As Hedges [Member] | Commodity Derivative Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount		184		184		200
Derivatives Not Designated As Hedges [Member] | Embedded Derivative Financial Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount		69		69		48
Derivatives Not Designated As Hedges [Member] | Equity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount		$ 65		$ 65		$ 71
Wal-Mart Stores, Inc. [Member] | Customer Concentration Risk [Member] | Revenue Benchmark [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Concentration Risk, Percentage						22.00%
Top Five Customers [Member] | Customer Concentration Risk [Member] | Revenue Benchmark [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Concentration Risk, Percentage						47.00%