Number of Joint Venture Partners

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- Definition

Number of Patents Infringed

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- Definition

Percentage Of Net Proceeds From Legal Settlement Receivable

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Surety Bonds, Amount Outstanding

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Amount of letters of credit outstanding under debtor-in-possession financing arrangement.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Name Accounting Standards Codification

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The accrued obligation as of the balance sheet date which represents the cost of settling insured claims and insured claims relating to insured events that have occurred but have not yet been reported to the insurer or reinsurer as of the date of the financial statements.

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Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

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Amount of damages paid to the plaintiff in the legal matter.

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Cash received for the settlement of litigation during the current period.

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Other Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended		8 Months Ended	12 Months Ended				8 Months Ended	9 Months Ended		12 Months Ended		8 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Sep. 27, 2013 Government Investigations And Reviews	Jan. 31, 2014 Government Investigations And Reviews	Jan. 31, 2014 Standby Letters of Credit	Jan. 31, 2014 Performance Guarantee	Jan. 31, 2014 Bechtel SAIC Company, LLC	Sep. 27, 2013 SAIC Government Investigations And Reviews	Nov. 01, 2013 SAIC Government Investigations And Reviews	Jan. 31, 2014 RDS partner	Jan. 31, 2014 Virnet X Inc partner	Nov. 30, 2012 Virnet X Inc patents	Sep. 27, 2013 Pre-Separation Government Investigations And Reviews
Other Commitments And Contingencies [Line Items]
Number of patents infringed											2	2
Patents transferred and awarded											$ 368
Percentage of proceeds obtained	25.00%
Aggregate loss provisions				18
Liability for estimate of loss			27	30				18	45				45
Ownership interest							30.00%
Number of joint venture partners										3
Amount outstanding					62
Surety bonds						141
Estimated accruals for claims incurred but not yet reported	$ 19	$ 19