Earnings Per Share (Computation Of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Apr. 30, 2022	May 01, 2021
Earnings Per Share [Abstract]
Net earnings (loss)	$ 20	$ (166)
Basic shares (in shares)	160.1	158.5
Dilutive effect of common stock equivalents (in shares)	2.8	0.0
Diluted shares (in shares)	162.9	158.5
Earnings (loss) per basic share (in dollars per share)	$ 0.13	$ (1.05)
Earnings (loss) per diluted share (in dollars per share)	$ 0.13	$ (1.05)
Anti-dilutive common stock equivalents (in shares)	10.1	12.7