Share Repurchases (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Oct. 29, 2023	Oct. 30, 2022
Statement [Line Items]
Treasury stock purchased, shares	679	859
Shares repurchased, value	$ 28	$ 41
Capital Stock in Treasury [Member]
Statement [Line Items]
Treasury stock purchased, shares	1,000	1,000
Shares repurchased, value	$ 28	$ 41
June 2021 Program
Statement [Line Items]
Authorized amount for shares repurchase	250
Stock Repurchase Program, Remaining Authorized Repurchase Amount	76
September 2021 Program
Statement [Line Items]
Authorized amount for shares repurchase	500
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 301