Derivative Instruments and Hedging Activities, Gain (Loss) (Details 1) (USD $) In Millions	3 Months Ended
Apr. 29, 2011	Apr. 30, 2010
Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Abstract]
Gain (Loss) Recognized in Accumulated OCI, Net of Tax, on Derivatives (Effective Portion)	$ (242)	$ 40
Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(174)	28
Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)	0	1
Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Abstract]
Gain (Loss) Recognized in Accumulated OCI, Net of Tax, on Derivatives (Effective Portion)	0
Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Abstract]
Gain (Loss) Recognized in Accumulated OCI, Net of Tax, on Derivatives (Effective Portion)	(242)	40
Total net revenue [Member]
Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Abstract]
Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(156)	46
Total cost of net revenue [Member]
Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Abstract]
Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(18)	(18)
Interest and other, net [Member]
Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Abstract]
Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	0
Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)	$ 0	$ 1

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The income statement location of the effective portion of net gain or loss reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 205G

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44C
-Subparagraph b
-Clause 3

+ Details

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- Definition

The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

+ Details

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

+ Details

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