Goodwill and Other Intangible Assets (Goodwill) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2013		Sep. 27, 2013
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill Gross	$ 4,261	[1]	$ 4,261	[1]
Accumulated impairment losses	(2,745)	[1]	(2,745)	[1]
Balance as of March 29, 2013, net	1,516		1,516
Additions			27
Deductions			(53)
Foreign currency translation			(16)
Goodwill Gross			4,219
Accumulated impairment losses			(2,745)
Balance as of September 27, 2013, net			1,474
Goodwill, Other Changes			19
GBS
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill Gross	1,316	[1]	1,316	[1]
Accumulated impairment losses	(671)	[1]	(671)	[1]
Balance as of March 29, 2013, net	645		645
Additions			27
Deductions			(12)
Foreign currency translation			(16)
Goodwill Gross			1,315
Accumulated impairment losses			(671)
Balance as of September 27, 2013, net			644
Goodwill, Transfers	47
GIS
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill Gross	2,152	[1]	2,152	[1]
Accumulated impairment losses	(2,074)	[1]	(2,074)	[1]
Balance as of March 29, 2013, net	78		78
Additions			0
Deductions			0
Foreign currency translation			0
Goodwill Gross			2,152
Accumulated impairment losses			(2,074)
Balance as of September 27, 2013, net			78
NPS
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill Gross	793	[1]	793	[1]
Accumulated impairment losses	0	[1]	0	[1]
Balance as of March 29, 2013, net	793		793
Additions			0
Deductions			(41)
Foreign currency translation			0
Goodwill Gross			752
Accumulated impairment losses			0
Balance as of September 27, 2013, net			$ 752

[1] Both the gross goodwill and accumulated impairment losses amounts have been adjusted for a reduction of $19 million, to reflect the fully impaired goodwill associated with the enterprise systems integration business divested in fiscal 2013.