Condensed Financial Statements Of Guarantors (Condensed Consolidating Balance Sheets - Original And Restated) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Sep. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Receivables, net	$ 345.1	$ 349.6
Total Current Assets	1,182.4	994.7
Goodwill	1,391.4	1,160.9
Other Assets	298.7	318.9
Total Assets	4,452.7	6,279.2
Accounts payable	244.1	284.4
Other current liabilities	160.9	192.1
Total Current Liabilities	490.7	671.9
Deferred Income Taxes	269.7	281.0
Total Liabilities	2,773.4	3,714.0
Commitments and Contingencies
Other shareholders' equity	1,678.7	2,564.6
Total Shareholders' Equity	1,679.3	2,565.2
Total Liabilities and Shareholders' Equity	4,452.7	6,279.2
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net	56.3	55.7
Total Current Assets	445.0	149.4
Investment in Subsidiaries	3,350.4	4,873.5
Deferred Income Taxes	46.5	46.5
Total Assets	3,974.7	5,244.5
Accounts payable	77.1	74.7
Other current liabilities	82.7	112.0
Total Current Liabilities	245.5	221.5
Intercompany Notes and Interest	76.9	91.7
Total Liabilities	2,295.4	2,679.3
Other shareholders' equity	1,678.7	2,564.6
Total Shareholders' Equity	1,679.3	2,565.2
Total Liabilities and Shareholders' Equity	3,974.7	5,244.5
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net	69.4	65.9
Total Current Assets	431.2	409.0
Intercompany Notes and Interest	41.0	88.8
Investment in Subsidiaries	309.8	271.4
Goodwill	1,286.6	1,068.1
Total Assets	3,631.8	3,114.9
Accounts payable	145.6	180.7
Other current liabilities	69.3	67.6
Total Current Liabilities	215.3	248.3
Intercompany Notes and Interest	15.1	15.1
Deferred Income Taxes	314.1	325.4
Total Liabilities	550.2	591.2
Other shareholders' equity	3,081.6	2,523.7
Total Shareholders' Equity	3,081.6	2,523.7
Total Liabilities and Shareholders' Equity	3,631.8	3,114.9
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net	222.6	233.5
Total Current Assets	314.8	445.1
Intercompany Notes and Interest	92.0	106.8
Goodwill	104.8	92.8
Total Assets	694.5	3,354.5
Accounts payable	29.6	37.8
Other current liabilities	8.9	12.5
Total Current Liabilities	38.5	210.9
Intercompany Notes and Interest	41.0	88.8
Deferred Income Taxes	2.1	2.1
Total Liabilities	115.9	733.3
Other shareholders' equity	578.6	2,621.2
Total Shareholders' Equity	578.6	2,621.2
Total Liabilities and Shareholders' Equity	694.5	3,354.5
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net	(3.2)	(5.5)
Total Current Assets	(8.6)	(8.8)
Intercompany Notes and Interest	(133.0)	(195.6)
Investment in Subsidiaries	(3,660.2)	(5,144.9)
Deferred Income Taxes	(46.5)	(46.5)
Total Assets	(3,848.3)	(5,434.7)
Accounts payable	(8.2)	(8.8)
Total Current Liabilities	(8.6)	(8.8)
Intercompany Notes and Interest	(133.0)	(195.6)
Deferred Income Taxes	(46.5)	(46.5)
Total Liabilities	(188.1)	(289.8)
Other shareholders' equity	(3,660.2)	(5,144.9)
Total Shareholders' Equity	(3,660.2)	(5,144.9)
Total Liabilities and Shareholders' Equity	(3,848.3)	(5,434.7)
Previously Reported [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		410.4	[1],[2],[3]
Total Current Assets		994.7
Goodwill		2,590.1	[4]
Other Assets		36.6	[2]
Total Assets		6,333.2
Accounts payable		313.2	[2]
Other current liabilities		223.0	[1]
Total Current Liabilities		671.9
Deferred Income Taxes		635.6	[1]
Total Liabilities		3,714.0
Other shareholders' equity		2,618.6	[1],[2],[3],[4]
Total Shareholders' Equity		2,619.2
Total Liabilities and Shareholders' Equity		6,333.2
Previously Reported [Member] | Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		57.5	[1],[2],[3]
Total Current Assets		151.2
Investment in Subsidiaries		4,921.9	[1],[2],[3],[4]
Deferred Income Taxes		141.0	[1]
Other Assets		11.5	[2]
Total Assets		5,326.5
Accounts payable		74.7	[2]
Other current liabilities		120.2	[1]
Total Current Liabilities		225.6
Intercompany Notes and Interest		115.6	[2],[3]
Total Liabilities		2,707.3
Other shareholders' equity		2,618.6	[1],[2],[3],[4]
Total Shareholders' Equity		2,619.2
Total Liabilities and Shareholders' Equity		5,326.5
Previously Reported [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		70.0	[1],[2],[3]
Total Current Assets		480.4
Intercompany Notes and Interest		88.8	[2],[3]
Investment in Subsidiaries		267.7	[1],[2],[3],[4]
Goodwill		2,491.0	[4]
Other Assets		24.9	[2]
Total Assets		5,735.7
Accounts payable		201.8	[2]
Other current liabilities		84.5	[1]
Total Current Liabilities		286.3
Intercompany Notes and Interest		15.1	[2],[3]
Deferred Income Taxes		765.5	[1]
Total Liabilities		1,070.1
Other shareholders' equity		4,665.6	[1],[2],[3],[4]
Total Shareholders' Equity		4,665.6
Total Liabilities and Shareholders' Equity		5,735.7
Previously Reported [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		284.7	[1],[2],[3]
Total Current Assets		368.2
Intercompany Notes and Interest		130.7	[2],[3]
Goodwill		99.1	[4]
Other Assets		0.2	[2]
Total Assets		826.2
Accounts payable		41.8	[2]
Other current liabilities		18.3	[1]
Total Current Liabilities		165.1
Intercompany Notes and Interest		88.8	[2],[3]
Deferred Income Taxes		11.1	[1]
Total Liabilities		302.2
Other shareholders' equity		524.0	[1],[2],[3],[4]
Total Shareholders' Equity		524.0
Total Liabilities and Shareholders' Equity		826.2
Previously Reported [Member] | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		(1.8)	[1],[2],[3]
Total Current Assets		(5.1)
Intercompany Notes and Interest		(219.5)	[2],[3]
Investment in Subsidiaries		(5,189.6)	[1],[2],[3],[4]
Deferred Income Taxes		(141.0)	[1]
Total Assets		(5,555.2)
Accounts payable		(5.1)	[2]
Total Current Liabilities		(5.1)
Intercompany Notes and Interest		(219.5)	[2],[3]
Deferred Income Taxes		(141.0)	[1]
Total Liabilities		(365.6)
Other shareholders' equity		(5,189.6)	[1],[2],[3],[4]
Total Shareholders' Equity		(5,189.6)
Total Liabilities and Shareholders' Equity		(5,555.2)
Restated [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		410.4	[1],[2],[3]
Total Current Assets		994.7
Goodwill		2,536.1	[4]
Other Assets		36.6	[2]
Total Assets		6,279.2
Accounts payable		313.2	[2]
Other current liabilities		223.0	[1]
Total Current Liabilities		671.9
Deferred Income Taxes		635.6	[1]
Total Liabilities		3,714.0
Other shareholders' equity		2,564.6	[1],[2],[3],[4]
Total Shareholders' Equity		2,565.2
Total Liabilities and Shareholders' Equity		6,279.2
Restated [Member] | Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		55.7	[1],[2],[3]
Total Current Assets		149.4
Investment in Subsidiaries		4,873.5	[1],[2],[3],[4]
Deferred Income Taxes		85.4	[1]
Other Assets		35.3	[2]
Total Assets		5,244.5
Accounts payable		74.7	[2]
Other current liabilities		116.1	[1]
Total Current Liabilities		221.5
Intercompany Notes and Interest		91.7	[2],[3]
Total Liabilities		2,679.3
Other shareholders' equity		2,564.6	[1],[2],[3],[4]
Total Shareholders' Equity		2,565.2
Total Liabilities and Shareholders' Equity		5,244.5
Restated [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		49.4	[1],[2],[3]
Total Current Assets		459.8
Intercompany Notes and Interest		88.8	[2],[3]
Investment in Subsidiaries		271.4	[1],[2],[3],[4]
Goodwill		2,437.0	[4]
Other Assets		1.1	[2]
Total Assets		5,641.0
Accounts payable		205.5	[2]
Other current liabilities		88.6	[1]
Total Current Liabilities		294.1
Intercompany Notes and Interest		15.1	[2],[3]
Deferred Income Taxes		709.9	[1]
Total Liabilities		1,022.3
Other shareholders' equity		4,618.7	[1],[2],[3],[4]
Total Shareholders' Equity		4,618.7
Total Liabilities and Shareholders' Equity		5,641.0
Restated [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		310.8	[1],[2],[3]
Total Current Assets		394.3
Intercompany Notes and Interest		106.8	[2],[3]
Goodwill		99.1	[4]
Other Assets		0.2	[2]
Total Assets		828.4
Accounts payable		41.8	[2]
Other current liabilities		18.3	[1]
Total Current Liabilities		165.1
Intercompany Notes and Interest		88.8	[2],[3]
Deferred Income Taxes		11.1	[1]
Total Liabilities		302.2
Other shareholders' equity		526.2	[1],[2],[3],[4]
Total Shareholders' Equity		526.2
Total Liabilities and Shareholders' Equity		828.4
Restated [Member] | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Receivables, net		(5.5)	[1],[2],[3]
Total Current Assets		(8.8)
Intercompany Notes and Interest		(195.6)	[2],[3]
Investment in Subsidiaries		(5,144.9)	[1],[2],[3],[4]
Deferred Income Taxes		(85.4)	[1]
Total Assets		(5,434.7)
Accounts payable		(8.8)	[2]
Total Current Liabilities		(8.8)
Intercompany Notes and Interest		(195.6)	[2],[3]
Deferred Income Taxes		(85.4)	[1]
Total Liabilities		(289.8)
Other shareholders' equity		(5,144.9)	[1],[2],[3],[4]
Total Shareholders' Equity		(5,144.9)
Total Liabilities and Shareholders' Equity		$ (5,434.7)

[1] Transactions were not recorded in the correct legal entity, and the amounts were not properly reclassified to the correct column.

[2] Clerical errors led to misclassifications between columns and between line items.

[3] Intercompany amounts related to the receivables securitization program discussed in Note 16 were not correctly calculated or reported.

[4] The calculated amount of impairment of intangible assets was incorrect as discussed in Note 3.