v3.25.2
Pension And Postretirement Benefits (Narrative) (Details) - USD ($)
 12 Months Ended
Aug. 03, 2025
Jul. 28, 2024
Jul. 30, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement     $ 245,000,000
"Retired Pension Plan Participants"     6,000
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan     $ (241,000,000)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement     4,000,000
Defined Contribution Plan, Employer Matching Contribution, Percent of Match 100.00%    
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 4.00%    
Defined Contribution Plan, Cost $ 77,000,000 $ 73,000,000 $ 73,000,000
Additional Match for Employees Not Eligible To Participate In Defined Benefit Plans [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 3.00%    
Other Postretirement Benefit Plan, Defined Benefit [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate 5.23% 5.47% 4.48%
Pension Plan, Defined Benefit [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Accumulated Benefit Obligation $ 1,195,000,000 $ 1,247,000,000  
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate 5.28% 5.46% 5.03%