Stock Based Compensation (Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Jan. 30, 2021 USD ($) $ / shares shares
Share Based Compensation [Abstract]
Outstanding, beginning of period, shares | shares	18,499
Granted, shares | shares	0
Canceled or forfeited, shares | shares	(2,154)
Exercised, shares | shares	0
Outstanding, end of period, shares | shares	16,345
Exercisable, end of period, shares | shares	14,357
Options expected to vest, shares | shares	1,371
Outstanding, beginning of period, weighted average exercise price | $ / shares	$ 39.77
Granted, weighted average exercise price | $ / shares	0
Canceled or forfeited, weighted average exercise price | $ / shares	32.84
Exercised, weighted average exercise price | $ / shares	0
Outstanding, end of period, weighted average exercise price | $ / shares	40.69
Exercisable, end of period, weighted average exercise price | $ / shares	42.74
Options expected to vest, weighted average exercise price | $ / shares	$ 25.84
Exercisable, end of period, weighted average remaining contractual life (years)	3 years 7 months 6 days
Options expected to vest, weighted average remaining contractual life (years)	7 years 4 months 24 days
Exercisable, end of period, aggregate intrinsic value | $	$ 0
Options expected to vest, aggregate intrinsic value | $	$ 0