Debt And Credit Facilities (Summary Of Long-Term Debt) (Details) - USD ($) $ in Millions		Jan. 28, 2023	Jan. 29, 2022
Debt Instrument [Line Items]
Total long-term debt		$ 2,856	$ 2,853
Deferred bond issuance costs		(20)	(21)
Senior notes, 2.30%, due April 2024 [Member]
Debt Instrument [Line Items]
Total long-term debt		$ 250	$ 250
Debt instrument interest rate		2.30%	2.30%
Senior notes, 4.00%, due March 2027 [Member]
Debt Instrument [Line Items]
Total long-term debt		$ 349	$ 349
Debt instrument interest rate		4.00%	4.00%
Senior debentures, 6.95%, due March 2028 [Member]
Debt Instrument [Line Items]
Total long-term debt		$ 300	$ 300
Debt instrument interest rate		6.95%	6.95%
Senior notes, 4.375%, due April 2030 [Member]
Debt Instrument [Line Items]
Total long-term debt		$ 500	$ 500
Debt instrument interest rate		4.375%	4.375%
Senior notes, 4.25%, due August 2031 [Member]
Debt Instrument [Line Items]
Total long-term debt		$ 425	$ 425
Debt instrument interest rate		4.25%	4.25%
Senior notes, 7.00%, due January 2038 [Member]
Debt Instrument [Line Items]
Total long-term debt		$ 147	$ 147
Debt instrument interest rate		7.00%	7.00%
Senior notes, 5.00%, due January 2044 [Member]
Debt Instrument [Line Items]
Total long-term debt	[1]	$ 905	$ 903
Debt instrument interest rate		5.00%	5.00%
Unamortized discount		$ 61	$ 63

[1] The unamortized discount on these notes was $61 and $63 as of January 28, 2023 and January 29, 2022.