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Earnings Per Share - EPS Narrative (Details) - USD ($) $ / shares in Units, shares in Millions	1 Months Ended	3 Months Ended		10 Months Ended
	Jun. 30, 2016	Aug. 31, 2016	Aug. 31, 2015	May 31, 2016	Aug. 02, 2016	Aug. 04, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Basic earnings (loss) per share from discontinued operations (in dollars per share)			$ (0.05)
Diluted earnings (loss) per share from discontinued operations (in dollars per share)			$ (0.05)
Options granted and excluded from the computation of diluted earnings per share (shares)		0.7	0.5
Total purchase price of shares repurchased				5.7
Stock purchased under share buyback, average price per share (dollars per share)				$ 87.89
Employee Payroll Taxes Due on Restricted Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total purchase price of shares repurchased		0.2
Stock purchased under share buyback, average price per share (dollars per share)		$ 99.67
Total purchase price of shares repurchased		$ 15,100,000
Buyback Program, August 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share buyback program, authorized amount						$ 500,000,000.0
Total purchase price of shares repurchased	0.1
Stock purchased under share buyback, average price per share (dollars per share)	$ 94.09
Total purchase price of shares repurchased	$ 3,700,000
Share Buyback Program, August 2, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share buyback program, authorized amount					$ 500,000,000.0