Common Stock - Additional Information (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Jan. 28, 2017 USD ($) Votes_per_share $ / shares shares	Jan. 30, 2016 USD ($) shares	Jan. 31, 2015 USD ($) shares	Feb. 25, 2016 USD ($)	Feb. 26, 2015 USD ($)	Oct. 16, 2014 USD ($)
Class of Stock [Line Items]
Number of shares repurchased (in shares)	0	30,000,000	30,000,000
Common Stock, Shares Authorized	2,300,000,000	2,300,000,000
Common stock, shares issued (in shares)	399,000,000	397,000,000
Preferred stock, shares authorized (in shares)	30,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.05
Preferred stock, shares issued (in shares)	0
Share repurchases, authorized amount | $				$ 1,000	$ 1,000	$ 1,500
Share repurchases, remaining amount | $	$ 1,000	$ 302
Total share repurchases, unpaid amount | $			$ 15
Common Class B [Member]
Class of Stock [Line Items]
Common Stock, Shares Authorized	60,000,000
Common Stock Votes Per Share | Votes_per_share	6
Common stock, shares issued (in shares)	0