Revenues - Change in Estimates on Contracts (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jan. 29, 2021	Jan. 31, 2020	Feb. 01, 2019
Revenue from Contract with Customer [Abstract]
Favorable adjustments	$ 41	$ 39	$ 30
Unfavorable adjustments	(32)	(17)	(13)
Net favorable adjustments	9	22	17
Income tax effect	(2)	(4)	(4)
Net favorable adjustments, after tax	$ 7	$ 18	$ 13
Basic EPS impact (in dollars per share)	$ 0.12	$ 0.31	$ 0.29
Diluted EPS impact (in dollars per share)	$ 0.12	$ 0.31	$ 0.29