Share Repurchases (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Apr. 30, 2023	May 01, 2022	Apr. 30, 2023	May 01, 2022
Statement [Line Items]
Treasury stock purchased, shares			2,692	2,700
Shares repurchased, value	$ 75	$ 51	$ 141	$ 116
Capital Stock in Treasury [Member]
Statement [Line Items]
Treasury stock purchased, shares	2,000	2,000	3,000	3,000
Shares repurchased, value	$ 75	$ 51	$ 141	$ 116
June 2021 Program
Statement [Line Items]
Authorized amount for shares repurchase	250		250
Shares repurchased, value			67
Stock Repurchase Program, Remaining Authorized Repurchase Amount	104		104
September 2021 Program
Statement [Line Items]
Authorized amount for shares repurchase	500		500
Shares repurchased, value			74
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 301		$ 301