Financing Receivables and Guarantees (Schedule Of Contractual Maturities Of Gross Lease Receivables) (Detail) (USD $) In Millions, unless otherwise specified	Jul. 27, 2013
Financing Receivables And Guarantees [Abstract]
2014	$ 1,656
2015	1,114
2016	632
2017	301
2018	75
Thereafter	2
Total	$ 3,780

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Amount of minimum lease payments to be received by the lessor for capital leases.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496975&loc=d3e45377-112738

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Amount of minimum lease payments to be received by the lessor in the next fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments to be received by the lessor after the fifth fiscal year following the latest fiscal year for capital leases.

+ References

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Amount of minimum lease payments to be received by the lessor in the fifth fiscal year following the latest fiscal year for capital leases.

+ References

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Amount of minimum lease payments to be received by the lessor in the fourth fiscal year following the latest fiscal year for capital leases.

+ References

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Amount of minimum lease payments to be received by the lessor in the third fiscal year following the latest fiscal year for capital leases.

+ References

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Amount of minimum lease payments to be received by the lessor in the second fiscal year following the latest fiscal year for capital leases.

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