Stock Based Compensation (Stock Option Activity) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Feb. 01, 2014
Share-based Compensation [Abstract]
Outstanding, beginning of period, shares	29,792,900
Outstanding, beginning of period, weighted average exercise price	$ 29.07
Granted, shares	3,621,500
Granted, weighted average exercise price	$ 41.67
Canceled or forfeited, shares	(485,000)
Canceled or forfeited, weighted average exercise price	$ 33.47
Exercised, shares	(9,615,800)
Exercised, weighted average exercise price	$ 26.44
Outstanding, end of period, shares	23,313,600
Outstanding, end of period, weighted average exercise price	$ 32.02
Exercisable, end of period, shares	14,365,600
Exercisable, end of period, weighted average exercise price	$ 30.20
Exercisable, end of period, weighted average remaining contractual life (years)	3 years 10 months 24 days
Exercisable, end of period, aggregate intrinsic value	$ 330
Options expected to vest, shares	7,874,300
Options expected to vest, weighted average exercise price	$ 34.95
Options expected to vest, weighted average remaining contractual life (years)	8 years 1 month 6 days
Options expected to vest, aggregate intrinsic value	$ 144