Balance Sheet Components (Details) - USD ($) $ in Millions		Oct. 25, 2015		Jul. 26, 2015	Jan. 25, 2015
Inventories
Raw materials		$ 117			$ 157
Work in-process		91			92
Finished goods		217			234
Total inventories		425			483
Outstanding Inventory Purchase Obligations		442
Accrued Liabilities and Other Current Liabilities
Unearned Revenue	[1]	229			296
Customer related liabilities	[2]	151			143
Accrued payroll and related expenses		98			112
Professional service fees		24			17
Accrued restructuring and other charges		15	[3]	$ 18	0
Warranty accrual	[4]	13			8
Taxes payable		7			3
Coupon interest on Notes		6			3
Facilities related liabilities		1			8
Other		16			13
Total accrued and other current liabilities		560			603
Other Long-Term Liabilities
Deferred income tax liability		325			232
Income taxes payable, long-term		76			121
Asset retirement obligation		7			7
Derivative Liability, Noncurrent		3	[5]		0
Deferred Revenue, long-term		1	[6]		108
Other		25			21
Total other long-term liabilities		$ 437			$ 489

[1] Unearned revenue primarily includes deferred revenue.

[2] Customer related liabilities primarily includes accrued customer programs. Please refer to Note 1 of the Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the fiscal year ended January 25, 2015, for a discussion regarding the nature of accrued customer programs and their accounting treatment related to our revenue recognition policies and estimates.

[3] Please refer to Note 15 of these Notes to Condensed Consolidated Financial Statements for a discussion regarding the accrued restructuring and other charges.

[4] Please refer to Note 10 of these Notes to Condensed Consolidated Financial Statements for a discussion regarding the warranty accrual.

[5] Please refer to Note 9 of these Notes to Condensed Consolidated Financial Statements for a discussion regarding our interest rate swap.

[6] Consists primarily of consideration received in advance of our performance obligations under the patent cross licensing agreement that we entered into with Intel Corporation in January 2011. The decrease in deferred revenue, long-term, is a result of revenue recognized during the nine months ended October 25, 2015.