Property and Equipment, Net Schedule of Future Minimum Lease Payments (Details) (USD $) In Millions, unless otherwise specified	Oct. 31, 2014
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Capital Leases, Future Minimum Payments Due, Next Twelve Months	$ 11
Capital Leases, Future Minimum Payments Due in Two Years	10
Capital Leases, Future Minimum Payments Due in Three Years	9
Capital Leases, Future Minimum Payments Due in Four Years	9
Capital Leases, Future Minimum Payments Due in Five Years	9
Capital Leases, Future Minimum Payments Due Thereafter	20
Capital Leases, Future Minimum Payments Due	68
Capital Leases, Future Minimum Payments, Interest Included in Payments	14
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments	54
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	65
Operating Leases, Future Minimum Payments, Due in Two Years	51
Operating Leases, Future Minimum Payments, Due in Three Years	41
Operating Leases, Future Minimum Payments, Due in Four Years	36
Operating Leases, Future Minimum Payments, Due in Five Years	29
Operating Leases, Future Minimum Payments, Due Thereafter	71
Operating Leases, Future Minimum Payments Due	293
Future Minimum Lease Payments Due Current	76
Future Minimum Lease Payments Due in Two Years	61
Future Minimum Lease Payments Due in Three Years	50
Future Minimum Lease Payments Due in Four Years	45
Future Minimum Lease Payments Due in Five Years	38
Future Minimum Lease Payments Due Thereafter	91
Future Minimum Lease Payments Due	$ 361nav_FutureMinimumLeasePaymentsDue

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Amount of minimum lease payments for capital leases.

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

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Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount necessary to reduce net minimum lease payments to present value for capital leases.

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Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

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Amount of required minimum rental payments for 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 for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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