Consolidated Statement of Shareowners' Equity (Parenthetical) (USD $) In Millions, except Per Share data	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Retained Earnings
Cash dividends per share	$ 1.475	$ 1.22	$ 1.16
Adjustment to adopt new accounting guidance related to defined benefit and postretirement plans, tax effect			$ 4.4

Tax effect of adjustment decreasing or increasing retained earnings due to a change in the measurement date for a defined benefit pension and other postretirement plan in the initial application of the measurement provision of FAS 158.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 158

-Paragraph 21

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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