Share-Based Compensation Share-Based Compensation - Arrangement By Share-Based Payment Award, Outstanding And Exercisable (Details) shares in Millions	12 Months Ended
	Jan. 30, 2016 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	4,251,555
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	7 years 187 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 36.29
Options Exercisable, Shares	1,279,417
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 29.56
Vested or expected to vest as of January 30, 2016 Shares	3,983,047
Vested or expected to vest as of January 30, 2016, Weighted-Average Remaining Contractual Life (in years)	7 years 155 days
Vested or expected to vest as of January 30, 2016, Weighted-Average Exercise Price | $ / shares	$ 36.04
$11.77 - $25.09 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	949,360
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	4 years 344 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 22.91
Options Exercisable, Shares	712,397
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 22.25
$25.38 - $38.67 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	857,602
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	7 years 88 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 35.84
Options Exercisable, Shares	319,017
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 36.07
$39.71 - $41.20 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	348,249
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	8 years 268 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 41.14
Options Exercisable, Shares	13,024
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 40.32
$41.27 - $41.27 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	1,171,388
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	9 years 38 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 41.27
Options Exercisable, Shares	0
$41.67 - $46.41 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	924,956
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	7 years 333 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 42.30
Options Exercisable, Shares	234,979
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 42.29