SIGNIFICANT ACCOUNTING POLICIES (Details) - shares shares in Millions	12 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Basic average common shares outstanding	96.9	97.5	97.1
Impact of convertible notes	1.1	0.0	0.0
Diluted average common shares outstanding	100.1	99.2	97.1
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Impact of instruments atributable to dilutive effect of share-based payment arrangements	0.1	0.1	0.0
Restricted Shares, Restricted Share Units and Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Impact of instruments atributable to dilutive effect of share-based payment arrangements	2.0	1.6	0.0

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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

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