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) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Current tax expense (benefit):
Federal									$ 253.6	$ 66.6	$ (7.0)
State									9.1	6.8	3.1
Total current tax expense (benefit)									262.7	73.4	(3.9)
Deferred tax expense:
Federal									2.9	146.3	(616.1)
State									15.1	(24.6)	(93.4)
Total deferred tax expense (benefit)									18.0	121.7	(709.5)
Total income tax expense (benefit)	$ 84.5	$ 58.7	$ 70.9	$ 66.5	$ 63.3	$ 59.1	$ 31.1	$ 41.6	$ 280.7	$ 195.1	$ (713.4)