Pension And Postretirement Benefits (Schedule of Change In Fair Value Of Pension Assets) (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Aug. 03, 2025 |
Jul. 28, 2024 |
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| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ||
| Defined Benefit Plan, Plan Assets, Amount | $ 1,307 | |
| Defined Benefit Plan, Plan Assets, Amount | 1,244 | $ 1,307 |
| Pension Plan, Defined Benefit [Member] | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ||
| Defined Benefit Plan, Plan Assets, Amount | 1,307 | 1,316 |
| Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) | 45 | 86 |
| Defined Benefit Plan, Plan Assets, Contributions by Employer | 1 | 1 |
| Defined Benefit Plan, Plan Assets, Benefits Paid | (109) | (91) |
| Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) | 0 | (5) |
| Defined Benefit Plan, Plan Assets, Amount | $ 1,244 | $ 1,307 |
| X | ||||||||||
- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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