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Pension And Postretirement Benefits (Schedule Of Pension Plan Assets By Category) (Details) - USD ($) $ in Millions | Aug. 03, 2025 | Jul. 28, 2024
--- | --- | ---
Defined Benefit Plan, Plan Assets, Amount | $ 1,244 | $ 1,307
Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 2 | 1
Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 827 | 850
Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 4 | 8
Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 833 | 859
Fair Value Measured at Net Asset Value Per Share |  |
Defined Benefit Plan, Plan Assets, Amount | 418 | 447
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 2 | 1
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 0 | 2
Short-term Investments [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 2 | 3
Short-term Investments [Member] | Fair Value Measured at Net Asset Value Per Share |  |
Defined Benefit Plan, Plan Assets, Amount | 27 | 46
Equity Securities, US [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 1 | 1
Equity Securities, US [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 1 | 1
Corporate Bonds, US [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 410 | 416
Corporate Bonds, US [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 410 | 416
Corporate Bonds, Non-US [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 81 | 85
Corporate Bonds, Non-US [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 81 | 85
US Treasury and Government [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 302 | 326
US Treasury and Government [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 302 | 326
Debt Security, Government, Non-US [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 23 | 16
Debt Security, Government, Non-US [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 23 | 16
Municipal Bonds [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 3 | 4
Municipal Bonds [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 3 | 4
Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 7 | 0
Asset-backed Securities [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 7 | 0
Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 0 | 1
Real Estate [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 0 | 1
Hedge Funds [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 4 | 7
Hedge Funds [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 4 | 7
Derivative Financial Instruments, Assets [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 0 | 1
Derivative Financial Instruments, Assets [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 0 | 1
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 0 | (1)
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Defined Benefit Plan, Plan Assets, Amount | 0 | (1)
Equity Funds [Member] | Fair Value Measured at Net Asset Value Per Share |  |
Defined Benefit Plan, Plan Assets, Amount | 244 | 259
Fixed Income Funds [Member] | Fair Value Measured at Net Asset Value Per Share |  |
Defined Benefit Plan, Plan Assets, Amount | 79 | 77
Real Estate Funds [Member] | Fair Value Measured at Net Asset Value Per Share |  |
Defined Benefit Plan, Plan Assets, Amount | 68 | 65
Financial Instrument, Other |  |
Defined Benefit Plan, other items to reconcile to fair value of plan assets, amount | $ (7) | $ 1

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