Restructuring and Other Charges (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 26, 2015	Jul. 27, 2014	Jul. 26, 2015	Jul. 27, 2014
Restructuring and Other Charges [Abstract]
Severance Costs		$ 56
Tax subsidy impairment - restructuring charge		17
Fixed assets impairment - restructuring charge		11
Facilities and related costs - restructuring charge		2
Other exit costs		3
Restructuring and other charges		89	$ 0	$ 89	$ 0
Additional restructuring charges in FY16 - minimum		15
Additional restructuring charges in FY16 - maximum		$ 25
Restructuring impact on workforce		5.00%		5.00%
Restructuring reserve beg balance		$ 0		$ 0
Payments for Restructuring		(39)
Restructuring Reserve, Settled without Cash		(32)
Restructuring reserve end balance	[1]	$ 18		$ 18

[1] Please refer to Note 14 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the restructuring and other charges accrual.