Condensed Consolidated Statements of Changes in Equity (unaudited) - USD ($) $ in Millions	Total	Parent	Common stock, without par value	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interests
Balance, beginning of period at Sep. 30, 2014			$ 1,215.6	$ 1,509.4	$ (21.2)	$ (44.7)	$ 1,004.1
Increase (Decrease) in Stockholders' Equity
Common Stock issued in connection with employee and director plans (including (losses) on treasury stock transactions), net of tax withheld			(18.6)
Excess tax benefits realized on equity-based compensation			6.3
Equity-based compensation expense			11.7
Loss from acquisition of noncontrolling interests through business combination			(6.6)
Net income (loss) including noncontrolling interests	$ 466.5			290.2			176.3
Cash dividends on Common Stock				(114.3)
Net (losses) gains on derivative instruments, net of tax	23.1				23.1
Reclassification of net (gains) losses on derivative instruments, net of tax	0.7				2.5		(1.8)
Benefit plans, net of tax	1.4				1.4
Foreign currency, net of tax	(118.0)				(118.0)
Common stock issued in connection with employee and director plans, net of tax withheld						33.2
Repurchases of Common Stock						(17.3)
Reacquired common stock - employee and director plans						(4.2)
Dividends and distributions							(185.8)
Change in noncontrolling interests as a result of business combination							(5.2)
Other							(0.5)
Balance, end of period at Jun. 30, 2015	3,735.6	$ 2,748.5	1,208.4	1,685.3	(112.2)	(33.0)	987.1
Balance, beginning of period at Mar. 31, 2015					(85.4)
Increase (Decrease) in Stockholders' Equity
Net income (loss) including noncontrolling interests	(15.9)
Net (losses) gains on derivative instruments, net of tax	(4.8)
Reclassification of net (gains) losses on derivative instruments, net of tax	0.5
Benefit plans, net of tax	0.4
Foreign currency, net of tax	(23.0)
Balance, end of period at Jun. 30, 2015	3,735.6	2,748.5	1,208.4	1,685.3	(112.2)	(33.0)	987.1
Balance, beginning of period at Sep. 30, 2015	3,572.4		1,214.6	1,636.9	(114.6)	(44.9)	880.4
Increase (Decrease) in Stockholders' Equity
Common Stock issued in connection with employee and director plans (including (losses) on treasury stock transactions), net of tax withheld			(35.3)
Excess tax benefits realized on equity-based compensation			12.4
Equity-based compensation expense			9.6
Loss from acquisition of noncontrolling interests through business combination			0.0
Net income (loss) including noncontrolling interests	604.5			408.5			196.0
Cash dividends on Common Stock				(119.6)
Net (losses) gains on derivative instruments, net of tax	(15.1)				(15.1)
Reclassification of net (gains) losses on derivative instruments, net of tax	(9.0)				(9.0)		0.0
Benefit plans, net of tax	1.0				1.0
Foreign currency, net of tax	(18.9)				(18.9)
Common stock issued in connection with employee and director plans, net of tax withheld						72.9
Repurchases of Common Stock						(24.7)
Reacquired common stock - employee and director plans						(24.6)
Dividends and distributions							(192.3)
Change in noncontrolling interests as a result of business combination							0.0
Other							3.4
Balance, end of period at Jun. 30, 2016	3,836.7	2,949.2	1,201.3	1,925.8	(156.6)	(21.3)	887.5
Balance, beginning of period at Mar. 31, 2016					(129.9)
Increase (Decrease) in Stockholders' Equity
Net income (loss) including noncontrolling interests	28.6
Net (losses) gains on derivative instruments, net of tax	7.8
Reclassification of net (gains) losses on derivative instruments, net of tax	0.6
Benefit plans, net of tax	0.3
Foreign currency, net of tax	(35.4)
Balance, end of period at Jun. 30, 2016	$ 3,836.7	$ 2,949.2	$ 1,201.3	$ 1,925.8	$ (156.6)	$ (21.3)	$ 887.5