Financing Receivables And Guarantees (Contractual Maturities Of The Gross Lease Receivables) (Detail) (USD $) In Millions, unless otherwise specified	Jan. 26, 2013
Financing Receivable, Recorded Investment [Line Items]
2013 (remaining six months)	$ 878
2014	1,345
2015	863
2016	437
2017	194
Total	$ 3,717

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

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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 in the fifth 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 in the fourth 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 in the third 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 in the second fiscal year following the latest fiscal year for capital leases.

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