Stock Based Compensation (Stock Option Activity) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Feb. 02, 2013
Share-based Compensation [Abstract]
Outstanding, beginning of period, shares	34,405,300
Outstanding, beginning of period, weighted average exercise price	$ 26.36
Granted, shares	3,627,800
Granted, weighted average exercise price	$ 39.84
Canceled or forfeited, shares	(670,500)
Canceled or forfeited, weighted average exercise price	$ 31.58
Exercised, shares	(7,569,700)
Exercised, weighted average exercise price	$ 21.69
Outstanding, end of period, shares	29,792,900
Outstanding, end of period, weighted average exercise price	$ 29.07
Exercisable, end of period, shares	19,991,400
Exercisable, end of period, weighted average exercise price	$ 30.09
Exercisable, end of period, weighted average remaining contractual life (years)	4 years
Exercisable, end of period, aggregate intrinsic value	$ 188
Options expected to vest, shares	8,429,300
Options expected to vest, weighted average exercise price	$ 26.99
Options expected to vest, weighted average remaining contractual life (years)	8 years
Options expected to vest, aggregate intrinsic value	$ 106