Commitments and Contingencies (Schedule of Future Annual Minimum Rental Payments) (Details) (USD $) In Millions, unless otherwise specified	Jul. 28, 2013
Minimum rental obligation, 2014	$ 45
Minimun rental obligation, 2015	36
Minimum rental obligation, 2016	32
Minimum rental obligation, 2017	25
Minimum rental obligation, 2018	19
Minimum rental obligation, Thereafter	$ 47

Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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