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Pension And Postretirement Benefits (Schedule Of Components of Benefit Expense) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Apr. 27, 2025
Apr. 28, 2024
Apr. 27, 2025
Apr. 28, 2024
Pension Plan, Defined Benefit [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Service Cost $ 4 $ 4 $ 10 $ 10
Defined Benefit Plan, Interest Cost $ 15 $ 16 $ 46 $ 49
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Other expenses / (income) Other expenses / (income) Other expenses / (income) Other expenses / (income)
Expected return on plan assets $ (20) $ (20) $ (60) $ (60)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other expenses / (income) Other expenses / (income) Other expenses / (income) Other expenses / (income)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) $ 0 $ 0 $ 0 $ 0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration] Other expenses / (income) Other expenses / (income) Other expenses / (income) Other expenses / (income)
Defined Benefit Plan, Actuarial Gain (Loss) $ 0 $ 0 $ 0 $ 0
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Immediate Recognition of Actuarial Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other expenses / (income) Other expenses / (income) Other expenses / (income) Other expenses / (income)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) $ (1) $ 0 $ (4) $ (1)
Other Postretirement Benefit Plans, Defined Benefit [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Service Cost 0 0 0 0
Defined Benefit Plan, Interest Cost $ 2 $ 2 $ 5 $ 6
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Other expenses / (income) Other expenses / (income) Other expenses / (income) Other expenses / (income)
Expected return on plan assets $ 0 $ 0 $ 0 $ 0
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other expenses / (income) Other expenses / (income) Other expenses / (income) Other expenses / (income)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) $ (1) $ 0 $ (1) $ 0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration] Other expenses / (income) Other expenses / (income) Other expenses / (income) Other expenses / (income)
Defined Benefit Plan, Actuarial Gain (Loss) $ 0 $ 0 $ (2) $ 0
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Immediate Recognition of Actuarial Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other expenses / (income) Other expenses / (income) Other expenses / (income) Other expenses / (income)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) $ 1 $ 2 $ 6 $ 6