Goodwill And Other Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	9 Months Ended
Mar. 31, 2011	Jun. 30, 2011	Sep. 30, 2010
Goodwill annual impairment	$ 0
Indefinite-lived intangible assets		0
Finite-lived intangible assets		4	4
Useful life of intangible assets, minimum (years)		6
Useful life of intangible assets, maximum (years)		14
Useful life of intangible assets, average (years)		10
Maximum [Member]
Amortization of intangible assets, year one		1
Amortization of intangible assets, year two		1
Amortization of intangible assets, year three		1
Amortization of intangible assets, year four		1
Amortization of intangible assets, year five		$ 1

The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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The maximum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.

+ References

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The minimum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.

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The calculated weighted-average useful life of all finite-lived intangible assets.

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- Definition

The amount of amortization expense expected to be recognized during year five of the five succeeding fiscal years.

+ References

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The amount of amortization expense expected to be recognized during year four of the five succeeding fiscal years.

+ References

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The amount of amortization expense expected to be recognized during year one of the five succeeding fiscal years.

+ References

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-Publisher FASB
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The amount of amortization expense expected to be recognized during year three of the five succeeding fiscal years.

+ References

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The amount of amortization expense expected to be recognized during year two of the five succeeding fiscal years.

+ References

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Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

+ References

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Carrying amount of intangible assets, excluding goodwill, which have a projected indefinite period of benefit (hence are not amortized), allocated to the reportable segment. These assets, acquired either individually or as part of a group of assets, in either an asset acquisition or business combination, are assessed at least annually for impairment. Examples may include trade secrets, contractual rights, trade names, and licensing agreements.

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