Restructuring Charges and Cost Savings Initiatives (Schedule Of Restructuring Activity And Related Reserves) (Details) - 2025 Initiatives - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 26, 2025 |
Jan. 26, 2025 |
Jul. 28, 2024 |
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| Restructuring Reserve [Roll Forward] | |||||||||||
| Other Restructuring Costs | $ 25 | $ 52 | |||||||||
| Severance Pay And Benefits [Member] | |||||||||||
| Restructuring Reserve [Roll Forward] | |||||||||||
| Accrued Balance at beginning of period | [1] | 36 | |||||||||
| Restructuring and Related Cost, Incurred Cost | 11 | ||||||||||
| Cash Payments | (15) | ||||||||||
| Accrued Balance at end of period | [2] | 32 | 32 | ||||||||
| Restructuring Reserve, Noncurrent | $ 14 | 14 | $ 12 | ||||||||
| Other Cost Savings Implementation Costs [Member] | |||||||||||
| Restructuring Reserve [Roll Forward] | |||||||||||
| Other Restructuring Costs | [3] | 23 | |||||||||
| Asset Impairment Accelerated Depreciation [Member] | |||||||||||
| Restructuring Reserve [Roll Forward] | |||||||||||
| Other Restructuring Costs | 17 | ||||||||||
| Other Non Cash Exit Costs [Member] | |||||||||||
| Restructuring Reserve [Roll Forward] | |||||||||||
| Other Restructuring Costs | [4] | $ 1 | |||||||||
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