Goodwill and Other Intangible Assets (Goodwill) (Details) - 3 months ended Jul. 03, 2015 $ in Millions	USD ($) company
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross	$ 4,433
Accumulated impairment losses	(2,762)
Balance as of April 3, 2015, net	1,671
Additions	0
Deductions	(7)
Foreign currency translation	7
Goodwill, gross	4,433
Accumulated impairment losses	(2,762)
Balance as of July 3, 2015, net	$ 1,671
Number of publicly traded companies announced | company	2
GBS
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross	$ 1,340
Accumulated impairment losses	(701)
Balance as of April 3, 2015, net	639
Additions	0
Deductions	0
Foreign currency translation	7
Goodwill, gross	1,347
Accumulated impairment losses	(701)
Balance as of July 3, 2015, net	646
GIS
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross	2,260
Accumulated impairment losses	(2,061)
Balance as of April 3, 2015, net	199
Additions	0
Deductions	0
Foreign currency translation	0
Goodwill, gross	2,260
Accumulated impairment losses	(2,061)
Balance as of July 3, 2015, net	199
NPS
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross	833
Accumulated impairment losses	0
Balance as of April 3, 2015, net	833
Additions	0
Deductions	(7)
Foreign currency translation	0
Goodwill, gross	826
Accumulated impairment losses	0
Balance as of July 3, 2015, net	$ 826