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Pension And Postretirement Benefits (Tables)
 3 Months Ended
Oct. 27, 2024
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs [Table Text Block]
Components of net periodic benefit expense (income) were as follows:
Three Months Ended
PensionPostretirement
(Millions)October 27, 2024October 29, 2023October 27, 2024October 29, 2023
Service cost$3 $3 $— $— 
Interest cost15 16 2 2 
Expected return on plan assets(20)(20)— — 
Actuarial losses (gains)— — 2 — 
Net periodic benefit expense (income)$(2)$(1)$4 $2