Estimated Future Amortization Expense on Technology Placed in Service (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013
Finite-Lived Intangible Assets [Line Items]
2014	$ 66
2015	62
2016	49
2017	47
2018 and thereafter	244
Total	468
Technology and Software
Finite-Lived Intangible Assets [Line Items]
2014	175
2015	162
2016	129
2017	85
2018 and thereafter	35
Total	$ 586

Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Future Amortization Expense

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- Definition

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