Condensed Financial Statements Of Guarantors (Condensed Consolidating Statements Of Cash Flows) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Net Cash (Used) Provided by Operating Activities-Continuing Operations	$ 124.0	$ 143.7
Net Cash (Used) Provided by Operating Activities - Discontinued Operations	38.4	83.1
Net Cash Provided by Operating Activities	162.4	226.8
Business acquisitions, net of cash acquired	(567.9)
Additions to property and intangible assets	(69.2)	(44.8)
Proceeds from sale of property		0.1
Purchases of securities	(0.8)	(10.0)
Proceeds from sale or maturity of securities	8.2	10.0
Payments for equity contributions
Proceeds from equity distributions
Payments for intercompany lending
Receipt of intercompany loan repayments
Net Cash (Used) Provided by Investing Activities - Continuing Operations	(629.7)	(44.7)
Net Cash Provided (Used) by Investing Activities - Discontinued Operations	(13.9)	(7.0)
Net Cash Provided (Used) by Investing Activities	(643.6)	(51.7)
Proceeds from issuance of long-term debt	550.0
Repayments of long-term debt	(753.2)	(44.7)
Net (repayments) borrowings under credit arrangements	(124.9)	(116.8)
Purchase of treasury stock	(0.6)	(0.6)
Proceeds and tax benefits from exercise of stock awards	10.7	4.9
Changes in book cash overdrafts	(20.4)	(7.0)
Proceeds from equity contributions
Payments for equity distributions
Proceeds from intercompany borrowing
Repayments of intercompany loans
Other, net		(0.1)
Net Cash (Used) Provided by Financing Activities - Continuing Operations	(338.4)	(164.3)
Net Cash (Used) Provided by Financing Activities - Discontinued Operations	900.0
Net Cash Provided (Used) by Financing Activities	561.6	(164.3)
Effect of Exchange Rate Changes on Cash	1.0	1.3
Net (Decrease) Increase in Cash and Cash Equivalents	81.4	12.1
Cash and Cash Equivalents, Beginning of Period	50.0	29.3
Cash and Cash Equivalents, End of Period	131.4	41.4
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash (Used) Provided by Operating Activities-Continuing Operations	40.2	105.9
Net Cash (Used) Provided by Operating Activities - Discontinued Operations	(18.4)	78.1
Net Cash Provided by Operating Activities	21.8	184.0
Additions to property and intangible assets	(14.2)	(5.4)
Purchases of securities	(0.8)	(10.0)
Proceeds from sale or maturity of securities	8.2	10.0
Payments for equity contributions	(556.5)	(9.8)
Proceeds from equity distributions	27.6
Payments for intercompany lending
Receipt of intercompany loan repayments
Net Cash (Used) Provided by Investing Activities - Continuing Operations	(535.7)	(15.2)
Net Cash Provided (Used) by Investing Activities - Discontinued Operations	(33.3)	80.3
Net Cash Provided (Used) by Investing Activities	(569.0)	65.1
Proceeds from issuance of long-term debt	550.0
Repayments of long-term debt	(750.7)	(44.7)
Net (repayments) borrowings under credit arrangements	(19.9)	(235.8)
Purchase of treasury stock	(0.6)	(0.6)
Proceeds and tax benefits from exercise of stock awards	10.7	4.9
Changes in book cash overdrafts	(1.3)	8.6
Proceeds from equity contributions
Payments for equity distributions
Proceeds from intercompany borrowing	48.9	66.8
Repayments of intercompany loans	(63.6)	(48.5)
Net Cash (Used) Provided by Financing Activities - Continuing Operations	(226.5)	(249.3)
Net Cash (Used) Provided by Financing Activities - Discontinued Operations	840.5
Net Cash Provided (Used) by Financing Activities	614.0	(249.3)
Net (Decrease) Increase in Cash and Cash Equivalents	66.8	(0.2)
Cash and Cash Equivalents, Beginning of Period	2.5	0.6
Cash and Cash Equivalents, End of Period	69.3	0.4
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash (Used) Provided by Operating Activities-Continuing Operations	162.5	162.1
Net Cash Provided by Operating Activities	162.5	162.1
Business acquisitions, net of cash acquired	(552.0)
Additions to property and intangible assets	(49.9)	(39.5)
Proceeds from sale of property		0.1
Payments for equity contributions
Proceeds from equity distributions
Payments for intercompany lending	(11.6)
Receipt of intercompany loan repayments	59.4
Net Cash (Used) Provided by Investing Activities - Continuing Operations	(554.1)	(39.4)
Net Cash Provided (Used) by Investing Activities	(554.1)	(39.4)
Changes in book cash overdrafts	(17.8)	(18.5)
Proceeds from equity contributions	551.9	0.9
Payments for equity distributions	(142.5)	(104.5)
Proceeds from intercompany borrowing
Repayments of intercompany loans
Other, net		(0.1)
Net Cash (Used) Provided by Financing Activities - Continuing Operations	391.6	(122.2)
Net Cash Provided (Used) by Financing Activities	391.6	(122.2)
Net (Decrease) Increase in Cash and Cash Equivalents		0.5
Cash and Cash Equivalents, Beginning of Period		0.3
Cash and Cash Equivalents, End of Period		0.8
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash (Used) Provided by Operating Activities-Continuing Operations	45.1	(16.1)
Net Cash (Used) Provided by Operating Activities - Discontinued Operations	51.5	69.4
Net Cash Provided by Operating Activities	96.6	53.3
Business acquisitions, net of cash acquired	(15.9)
Additions to property and intangible assets	(5.1)	0.1
Payments for equity contributions
Proceeds from equity distributions
Payments for intercompany lending	(48.9)	(66.8)
Receipt of intercompany loan repayments	71.5	48.5
Net Cash (Used) Provided by Investing Activities - Continuing Operations	1.6	(18.2)
Net Cash Provided (Used) by Investing Activities - Discontinued Operations	(13.9)	(7.0)
Net Cash Provided (Used) by Investing Activities	(12.3)	(25.2)
Repayments of long-term debt	(2.5)
Net (repayments) borrowings under credit arrangements	(105.0)	119.0
Changes in book cash overdrafts	(1.3)	2.9
Proceeds from equity contributions	4.6	8.9
Payments for equity distributions	(1.9)	(1.9)
Proceeds from intercompany borrowing	11.6
Repayments of intercompany loans	(67.3)
Net Cash (Used) Provided by Financing Activities - Continuing Operations	(161.8)	128.9
Net Cash (Used) Provided by Financing Activities - Discontinued Operations	92.8	(146.5)
Net Cash Provided (Used) by Financing Activities	(69.0)	(17.6)
Effect of Exchange Rate Changes on Cash	1.0	1.3
Net (Decrease) Increase in Cash and Cash Equivalents	16.3	11.8
Cash and Cash Equivalents, Beginning of Period	50.8	28.4
Cash and Cash Equivalents, End of Period	67.1	40.2
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash (Used) Provided by Operating Activities-Continuing Operations	(123.8)	(108.2)
Net Cash (Used) Provided by Operating Activities - Discontinued Operations	5.3	(64.4)
Net Cash Provided by Operating Activities	(118.5)	(172.6)
Payments for equity contributions	556.5	9.8
Proceeds from equity distributions	(27.6)
Payments for intercompany lending	60.5	66.8
Receipt of intercompany loan repayments	(130.9)	(48.5)
Net Cash (Used) Provided by Investing Activities - Continuing Operations	458.5	28.1
Net Cash Provided (Used) by Investing Activities - Discontinued Operations	33.3	(80.3)
Net Cash Provided (Used) by Investing Activities	491.8	(52.2)
Proceeds from equity contributions	(556.5)	(9.8)
Payments for equity distributions	144.4	106.4
Proceeds from intercompany borrowing	(60.5)	(66.8)
Repayments of intercompany loans	130.9	48.5
Net Cash (Used) Provided by Financing Activities - Continuing Operations	(341.7)	78.3
Net Cash (Used) Provided by Financing Activities - Discontinued Operations	(33.3)	146.5
Net Cash Provided (Used) by Financing Activities	(375.0)	224.8
Net (Decrease) Increase in Cash and Cash Equivalents	(1.7)
Cash and Cash Equivalents, Beginning of Period	(3.3)
Cash and Cash Equivalents, End of Period	$ (5.0)