Stock-based Compensation (Schedule Of Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Oct. 30, 2022 USD ($) $ / shares shares
Share-Based Payment Arrangement [Abstract]
Beginning of period, Options | shares	1,297
Granted, Options | shares	0
Exercised, Options | shares	(43)
Terminated, Options | shares	0
End of period, Options | shares	1,254
Exercisable at end of period, Options | shares	1,254
Beginning of period, Weighted-Average Exercise Price | $ / shares	$ 46.04
Granted, Weighted-Average Exercise Price | $ / shares	0
Exercised, Weighted-Average Exercise Price | $ / shares	41.01
Terminated, Weighted-Average Exercise Price | $ / shares	0
End of period, Weighted-Average Exercise Price | $ / shares	46.22
Exercisable at end of period, Weighted-Average Exercise Price | $ / shares	$ 46.22
Outstanding at end of period, Weighted-Average Remaining Contractual Life (In years)	4 years 7 months 6 days
Exercisable at end of period, Weighted-Average Remaining Contractual Life (In years)	4 years 7 months 6 days
Outstanding at end of period, Aggregate Intrinsic Value | $	$ 9
Exercisable at end of period, Aggregate Intrinsic Value | $	$ 9