Share Repurchases (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Apr. 28, 2024	Apr. 30, 2023	Apr. 28, 2024	Apr. 30, 2023
Statement [Line Items]
Treasury stock purchased, shares			1,080	2,692
Treasury Stock Value Acquired Cost Method	$ 17	$ 75	$ 46	$ 141
June 2021 Program
Statement [Line Items]
Authorized amount for shares repurchase	250		250
Stock Repurchase Program, Remaining Authorized Repurchase Amount	58		58
September 2021 Program
Statement [Line Items]
Authorized amount for shares repurchase	500		500
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 301		$ 301