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Restructuring Charges - Renew Blue Phase 2 (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		$ 1	$ 7	$ 30	$ 189
Termination benefits [Member] | Restructuring Program Renew Blue Phase 2 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				19
Restructuring Reserve [Roll Forward]
Restructuring reserve, balance at the beginning of the period				0
Payments for Restructuring				(16)
Adjustments	[1]			(2)
Restructuring reserve, balance at the end of the period		1		1
Continuing Operations [Member] | Restructuring Program Renew Blue Phase 2 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Operating Income Impact		1		26
Continuing Operations [Member] | Termination benefits [Member] | Restructuring Program Renew Blue Phase 2 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Operating Income Impact		0		18
Continuing Operations [Member] | Facility closure and other costs [Member] | Restructuring Program Renew Blue Phase 2 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Operating Income Impact		$ 1		$ 8
[1] Adjustments to termination benefits primarily represent changes in retention assumptions.

X

- Definition

Amount charged against earnings in the period for incurred and estimated costs, including inventory and non-inventory related costs, associated with restructurings pursuant to a program that is planned and controlled by management, and materially changes either the scope of a business undertaken by an entity, or the manner in which that business is conducted.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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