CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions		Total		Common Stock [Member]		Capital in Excess of Par Value [Member]		Retained Earnings [Member]		AOCI Attributable to Parent	Noncontrolling Interests [Member]
Beginning balance at Sep. 30, 2017				254,500,000
Shares issued under restricted stock plan				700,000
Compensation expense under share-based plans						$ 66.9
Net (loss) income attributable to common stockholders								$ 1,906.1
Dividends declared (per share - $1.33, $1.82 and $1.72)	[1]							(445.2)
Issuance of common stock, net of stock received for minimum tax withholdings	[2]			1,700,000
Purchases of common stock		(3,400,000)		(3,400,000)	[3]
Other comprehensive loss, net of tax		$ (238.0)								$ (238.0)
Net income		(3.2)									$ 2.1	[4]
Contributions	[4]										0.5
Distributions and adjustments to noncontrolling interests	[4]										(33.2)
Ending balance at Sep. 30, 2018				253,500,000
Beginning balance at Sep. 30, 2017				$ 2.5		10,624.9		172.4		(457.3)	43.6	[4]
Issuance of common stock, net of stock received for minimum tax withholdings						38.9	[2]	(6.7)
Purchases of common stock		(195.1)				(141.8)	[3]	(53.3)	[3]
Ending balance at Sep. 30, 2018		11,482.4		$ 2.5		10,588.9		1,573.3		(695.3)	13.0	[4]
Total Stockholders’ equity at Sep. 30, 2018		$ 11,469.4
Shares issued under restricted stock plan				3,200,000
Compensation expense under share-based plans						64.8
Adoption of accounting standards	[5]							43.5
Net (loss) income attributable to common stockholders								862.9
Dividends declared (per share - $1.33, $1.82 and $1.72)	[1]							(479.8)
Issuance of common stock, net of stock received for minimum tax withholdings	[2]			3,200,000
Fair value of share-based awards issued in business combinations						70.8
Purchases of common stock		(2,100,000)		(2,100,000)	[3]
Other comprehensive loss, net of tax		$ (373.9)	[6]							(373.9)
Net income		$ (5.0)									3.2	[4]
Contributions	[4]										0.2
Distributions and adjustments to noncontrolling interests	[4]										(2.1)
Ending balance at Sep. 30, 2019		257,800,000		257,800,000
Issuance of common stock, net of stock received for minimum tax withholdings				$ 0.1	[2]	101.1	[2]	(0.4)
Purchases of common stock		$ (88.6)				(86.2)	[3]	(2.4)	[3]
Ending balance at Sep. 30, 2019		11,684.2		$ 2.6		10,739.4		1,997.1		(1,069.2)	14.3	[4]
Total Stockholders’ equity at Sep. 30, 2019		$ 11,669.9
Shares issued under restricted stock plan				900,000
Compensation expense under share-based plans						130.3
Adoption of accounting standards	[5]							73.5
Net (loss) income attributable to common stockholders								(690.9)
Dividends declared (per share - $1.33, $1.82 and $1.72)	[1]							(348.1)
Issuance of common stock, net of stock received for minimum tax withholdings	[2]			1,700,000
Purchases of common stock		0
Adoption of new standard and reclassification of stranded tax effects resulting from Tax Reform										(73.4)
Other comprehensive loss, net of tax		$ (177.3)	[6]							(177.3)
Net income		$ (4.8)									2.7	[4]
Distributions and adjustments to noncontrolling interests	[4]										(0.1)
Ending balance at Sep. 30, 2020		260,400,000		260,400,000
Issuance of common stock, net of stock received for minimum tax withholdings	[2]					46.6
Ending balance at Sep. 30, 2020		$ 10,647.5		$ 2.6		$ 10,916.3		$ 1,031.6		$ (1,319.9)	$ 16.9	[4]
Total Stockholders’ equity at Sep. 30, 2020		$ 10,630.6

[1] Includes cash dividends paid and dividend equivalent units on certain restricted stock awards.

[2] Included in the issuance of common stock in fiscal 2019 is the issuance of approximately 1.6 million shares of Common Stock valued at $70.1 million in connection with the KapStone Acquisition.

[3] In fiscal 2019, we repurchased approximately 2.1 million shares of our Common Stock for an aggregate cost of $88.6 million. In fiscal 2018, we repurchased approximately 3.4 million shares of our Common Stock for an aggregate cost of $195.1 million.

[4] Excludes amounts related to contingently redeemable noncontrolling interests, which are separately classified outside of permanent equity in the Consolidated Balance Sheets.

[5] For fiscal 2020, the amount primarily relates to the adoption of ASU 2018-02 (as hereinafter defined). For fiscal 2019, the amount relates to the adoption of ASC 606 (as hereinafter defined).

[6] All amounts are net of tax and noncontrolling interest.