Financing Activities (Detail Of Debt Repayments) (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 30, 2022	Jul. 31, 2021
Repayments of Debt	$ 1,139	$ 517
2.875% Senior Notes Due 2023 [Member]
Repayments of Debt	$ 504	$ 136
Debt instrument interest rate, stated percentage	2.875%	2.875%
3.625% Senior Notes Due 2024 [Member]
Repayments of Debt	$ 350	$ 150
Debt instrument interest rate, stated percentage	3.625%	3.625%
4.375% Senior Notes Due 2023 [Member]
Repayments of Debt	$ 161	$ 49
Debt instrument interest rate, stated percentage	4.375%	4.375%
6.65% Senior Debentures Due 2024 [Member]
Repayments of Debt	$ 117	$ 4
Debt instrument interest rate, stated percentage	6.65%	6.65%
6.9% Senior Debentures Due 2032 [Member]
Repayments of Debt	$ 4	$ 0
Debt instrument interest rate, stated percentage	6.90%	6.90%
6.7% Senior Debentures Due 2034 [Member]
Repayments of Debt	$ 2	$ 0
Debt instrument interest rate, stated percentage	6.70%	6.70%
6.7% Senior Debentures Due 2028 [Member]
Repayments of Debt	$ 1	$ 0
Debt instrument interest rate, stated percentage	6.70%	6.70%
3.875% Senior Notes Due 2022 [Member]
Repayments of Debt	$ 0	$ 156
Debt instrument interest rate, stated percentage	3.875%	3.875%
7.6% Senior Debentures Due 2025 [Member]
Repayments of Debt	$ 0	$ 19
Debt instrument interest rate, stated percentage	7.60%	7.60%
9.5% Amortizing Debentures Due 2021 [Member]
Repayments of Debt	$ 0	$ 2
Debt instrument interest rate, stated percentage	9.50%	9.50%
9.75% Amortizing Debentures Due 2021 [Member]
Repayments of Debt	$ 0	$ 1
Debt instrument interest rate, stated percentage	9.75%	9.75%