Retirement Benefits (Change In PBO, Change In Fair Value Of Plan Assets And Amounts Recognized In The Consolidated Balance Sheets) (Details) (USD $) In Millions	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Fair value at end of year	$ 189.6	$ 171.0	$ 152.4
Accrued liabilities	33.8	238.8
U.S. [Member]
Obligation at beginning of year	2,446.2	2,210.5
Service cost	43.6	42.5	33.9
Interest cost	122.8	123.4	124.0
Amendments	0.6	1.3
Actuarial (gain) loss	93.3	176.9
Curtailments
Settlements		(20.0)
Special termination benefits		(0.9)	7.2
Participant contributions
Currency translation/other
Obligation at End of Year	2,605.9	2,446.2	2,210.5
Fair value at beginning of year	1,727.2	1,457.7
Actual return on plan assets	36.4	153.5
Company contributions	181.3	227.5
Participant contributions
Benefits paid	(100.6)	(87.5)
Settlements		(24.0)
Currency translation/other
Fair value at end of year	1,844.3	1,727.2	1,457.7
Funded Status at End of Year	(761.6)	(719.0)
Noncurrent assets
Accrued liabilities	10.3	178.2
Noncurrent liabilities	751.3	540.8
Net Amount Recognized	(761.6)	(719.0)
International [Member]
Obligation at beginning of year	1,307.4	1,175.5
Service cost	29.5	24.2	26.6
Interest cost	64.2	60.2	60.9
Amendments		1.0
Actuarial (gain) loss	(183.6)	115.0
Curtailments	(0.4)	(1.2)
Settlements	(5.1)
Special termination benefits	0.3	4.2	22.1
Participant contributions	3.7	4.1
Currency translation/other	(13.1)	(27.6)
Obligation at End of Year	1,159.9	1,307.4	1,175.5
Fair value at beginning of year	984.4	793.3
Actual return on plan assets	(7.0)	77.7
Company contributions	59.7	179.1
Participant contributions	3.7	4.1
Benefits paid	(43.0)	(48.0)
Settlements	(5.1)
Currency translation/other	(13.3)	(21.8)
Fair value at end of year	979.4	984.4	793.3
Funded Status at End of Year	(180.5)	(323.0)
Noncurrent assets	6.5
Accrued liabilities	23.5	60.6
Noncurrent liabilities	163.5	262.4
Net Amount Recognized	(180.5)	(323.0)
Other Postretirement Benefits [Member]
Obligation at beginning of year	120.9	116.0
Service cost	5.7	4.7	4.0
Interest cost	3.3	4.6	6.5
Actuarial (gain) loss	(2.5)	7.8
Obligation at End of Year	113.8	120.9	116.0
Benefits paid	(13.6)	(12.2)
Accrued liabilities	12.8	13.7
Noncurrent liabilities	$ 101.0	$ 107.2

The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Actual Return on Plan Assets (Component of Net Periodic Pension Cost)

-URI http://asc.fasb.org/extlink&oid=6504226

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Actual Return on Plan Assets (Component of Net Periodic Postretirement Benefit Cost)

-URI http://asc.fasb.org/extlink&oid=6504192

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 106

-Paragraph 518

-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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 87

-Paragraph 264

-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 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d(iv)(b)(i)

-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.