Business Segment Information (Details 1) (USD $) In Millions	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Segment Reporting Information [Line Items]
Identifiable assets	$ 5,284.9	$ 4,748.3	$ 4,305.7
Depreciation and amortization	131.3	127.3	134.1
Capital expenditures for property	120.1	99.4	98.0
Components of Identifiable assets Depreciation and amortization and Capital expenditures for property
Purchase accounting depreciation and amortization	19.8	18.9	18.6
Total before purchase accounting, depreciation and amortization [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	111.5	108.4	115.5
Architecture and Software [Member]
Segment Reporting Information [Line Items]
Identifiable assets	1,608.4	1,238.8	1,157.2
Depreciation and amortization	60.0	54.0	59.6
Capital expenditures for property	28.1	33.0	15.7
Control Products and Solutions [Member]
Segment Reporting Information [Line Items]
Identifiable assets	2,116.1	1,897.1	1,723.5
Depreciation and amortization	51.4	54.3	55.2
Capital expenditures for property	38.2	26.6	25.8
Corporate [Member]
Segment Reporting Information [Line Items]
Identifiable assets	1,560.4	1,612.4	1,425.0
Depreciation and amortization	0.1	0.1	0.7
Capital expenditures for property	$ 53.8	$ 39.8	$ 56.5

Components of Identifiable assets Depreciation and amortization and Capital expenditures for property.

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- Definition

Depreciation and amortization of basis adjustments recorded in conjunction with purchase accounting not allocated to the segments for purposes of determining operating earnings.

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- Definition

Total expenditures for additions to long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets of the reportable segment; if the amount: (a) is included in the determination of segment assets reviewed by the chief operating decision maker or (b) is otherwise regularly provided to the chief operating decision maker, even if not included in the determination of segment assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 28

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 7

-Section 03

-Paragraph 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Topic 210

-SubTopic 10

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

-Section S99

-Name Accounting Standards Codification

-Publisher FASB

-Paragraph 1

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Concepts (CON)

-Number 6

-Paragraph 25

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 18

-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.18)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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