Share-Based Compensation Share-Based Compensation - Arrangement By Share-Based Payment Award, Outstanding And Exercisable (Details) shares in Millions	12 Months Ended
	Feb. 03, 2018 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	9,142,206
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	7 years 342 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 28.67
Options Exercisable, Shares	2,620,866
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 33.03
$11.77 - $23.31 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	768,338
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	6 years 111 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 19.98
Options Exercisable, Shares	383,238
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 20.47
$23.54 - $23.54 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	2,945,485
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	9 years 50 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 23.54
Options Exercisable, Shares	0
$23.71 - $30.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	1,066,975
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	7 years 342 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 25.18
Options Exercisable, Shares	331,725
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 25.04
$30.18 - $30.18 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	2,478,605
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	8 years 50 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 30.18
Options Exercisable, Shares	619,105
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 30.18
$31.98 - $46.41 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	1,882,803
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	6 years 184 days
Options Outstanding, Weighted-Average Exercise Price | $ / shares	$ 40.25
Options Exercisable, Shares	1,286,798
Options Exercised, Weighted-Average Exercise Price | $ / shares	$ 40.20