Acquisitions And Divestitures (Schedule Of Purchase Price Of Avocent And Chloride Allocated To Assets And Liabilities) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Business Acquisition [Line Items]
Intangibles	$ 82	$ 75	$ 1,166
Goodwill	94	125	1,633
Debt assumed			169
Purchases of businesses, net of cash and equivalents acquired	187	232	2,843
Avocent And Chloride Member
Business Acquisition [Line Items]
Accounts receivable			197
Inventory			155
Property, plant & equipment and other assets			148
Intangibles			1,071
Goodwill			1,509
Assets held for sale, including deferred taxes			278
Total assets			3,358
Accounts payable and accrued expenses			183
Debt assumed			165
Deferred taxes and other liabilities			395
Purchases of businesses, net of cash and equivalents acquired			$ 2,615

Business acquisition purchase price allocation current assets asset held for sale including deferred taxes.

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- Definition

Business acquisition purchase price allocation current liabilities accounts payable and accrued expenses.

+ References

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- Definition

Business acquisition purchase price allocation property plant and equipment and other assets.

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- Definition

The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

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- Definition

The amount of acquisition cost of a business combination allocated to assets acquired.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 37

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- Definition

The amount of acquisition cost of a business combination allocated to inventory, including finished goods, work-in-process, and raw materials.

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- Definition

The amount of acquisition cost of a business combination allocated to receivables.

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- Definition

Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

+ References

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

-Publisher FASB

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- Definition

The amount of acquisition cost of a business combination allocated to the noncurrent portion of the long-term debt assumed from the acquired entity.

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-Publisher FASB

-Name Emerging Issues Task Force (EITF)

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Amount of acquisition cost of a business combination allocated to other noncurrent liabilities not separately disclosed.

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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