Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Income Taxes (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	May 31, 2014	Feb. 28, 2014	Nov. 30, 2013	Aug. 31, 2013	May 31, 2013	Feb. 28, 2013	Nov. 30, 2012	Aug. 31, 2012	May 31, 2014	May 31, 2013	May 31, 2012
Current:
Federal									$ 314.5	$ 274.2	$ 259.8
State									51.0	62.9	40.8
Total current									365.5	337.1	300.6
Deferred:
Federal									(3.5)	5.5	9.3
State									(1.4)	(0.2)	2.4
Total deferred									(4.9)	5.3	11.7
Provision for income taxes	$ 83.8	$ 92.1	$ 91.2	$ 93.5	$ 89.7	$ 81.9	$ 84.0	$ 86.8	$ 360.6	$ 342.4	$ 312.3