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Derivative Financial Instruments - Foreign Exchange Contracts Outstanding to Sell Various Currencies (Details) € in Millions, ¥ in Millions, CAD in Millions, $ in Millions	Oct. 31, 2015 JPY (¥)	Oct. 31, 2015 USD ($)		Oct. 31, 2015 EUR (€)	Oct. 31, 2015 CAD	Jan. 31, 2015 JPY (¥)	Jan. 31, 2015 USD ($)		Jan. 31, 2015 EUR (€)	Jan. 31, 2015 CAD	Nov. 01, 2014 JPY (¥)	Nov. 01, 2014 USD ($)		Nov. 01, 2014 EUR (€)	Nov. 01, 2014 CAD
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative, Notional Amount	¥ 850	$ 1,731	[1]	€ 2	CAD 45	¥ 0	$ 1,395	[1]	€ 1	CAD 14	¥ 0	$ 1,615	[1]	€ 1	CAD 14
[1] The principal currencies hedged against changes in the U.S. dollar were British pounds, Canadian dollars, Euro, and Japanese yen.

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

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



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Article 12



-Section 13



-Sentence Column B

+ Details

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Period Type:	instant

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- References

No definition available.

+ Details

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