Derivative Instruments (Effects of Interest Rate Derivatives and Adjustments to LTD on Earnings) (Details) - Designated As Hedging Instrument [Member] - Interest Expense [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 30, 2021	Oct. 31, 2020	Oct. 30, 2021	Oct. 31, 2020
Derivatives, Fair Value [Line Items]
Gain (Loss) Recognized
Interest Rate Swap Derivative Instruments [Member]
Derivatives, Fair Value [Line Items]
Gain (Loss) Recognized	(21)	(32)	(33)	13
Carrying Value Of Long Term Debt [Member]
Derivatives, Fair Value [Line Items]
Gain (Loss) Recognized	$ 21	$ 32	$ 33	$ (13)