Restructuring Costs (Details) - USD ($)	3 Months Ended
	Jul. 01, 2016	Jul. 03, 2015	Jul. 01, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 57,000,000	$ 0
Restructuring liability	1,000,000		$ 102,000,000
Composition of Workforce Restructuring Liability [Roll Forward]
Restructuring liability, beginning balance	1,000,000
Costs expensed (reversed)	57,000,000	$ 0
Restructuring liability, ending balance	102,000,000
Accrued expenses and other current liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring liability, current			98,000,000
Other liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring liability, noncurrent			4,000,000
Fiscal 2017 Plan | Workforce reductions
Restructuring Cost and Reserve [Line Items]
Restructuring costs	59,000,000
Restructuring liability	0		44,000,000
Composition of Workforce Restructuring Liability [Roll Forward]
Restructuring liability, beginning balance	0
Costs expensed (reversed)	59,000,000
Less: costs not affecting restructuring liability	(6,000,000)
Cash paid	(6,000,000)
Other	(3,000,000)
Restructuring liability, ending balance	44,000,000
Fiscal 2016 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs	(1,000,000)
Restructuring liability	59,000,000		46,000,000
Composition of Workforce Restructuring Liability [Roll Forward]
Restructuring liability, beginning balance	59,000,000
Costs expensed (reversed)	(1,000,000)
Cash paid	(12,000,000)
Restructuring liability, ending balance	46,000,000
Fiscal 2016 Plan | Workforce reductions
Restructuring Cost and Reserve [Line Items]
Restructuring costs	(1,000,000)
Restructuring liability	29,000,000		21,000,000
Composition of Workforce Restructuring Liability [Roll Forward]
Restructuring liability, beginning balance	29,000,000
Costs expensed (reversed)	(1,000,000)
Cash paid	(7,000,000)
Restructuring liability, ending balance	21,000,000
Fiscal 2016 Plan | Facilities costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0
Restructuring liability	30,000,000		25,000,000
Composition of Workforce Restructuring Liability [Roll Forward]
Restructuring liability, beginning balance	30,000,000
Costs expensed (reversed)	0
Cash paid	(5,000,000)
Restructuring liability, ending balance	25,000,000
Fiscal 2015 Plan | Workforce reductions
Restructuring Cost and Reserve [Line Items]
Restructuring costs	(1,000,000)
Restructuring liability	29,000,000		11,000,000
Composition of Workforce Restructuring Liability [Roll Forward]
Restructuring liability, beginning balance	29,000,000
Costs expensed (reversed)	(1,000,000)
Cash paid	(17,000,000)
Restructuring liability, ending balance	11,000,000
Restructuring Plan fourth quarter fiscal 2015 special restructuring | Workforce reductions
Composition of Workforce Restructuring Liability [Roll Forward]
Cash paid	(16,000,000)
Fiscal 2013 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0
Restructuring liability	1,000,000		$ 1,000,000
Composition of Workforce Restructuring Liability [Roll Forward]
Costs expensed (reversed)	0
Restructuring liability, ending balance	1,000,000
Operating Segments | GBS
Restructuring Cost and Reserve [Line Items]
Restructuring costs	20,000,000
Composition of Workforce Restructuring Liability [Roll Forward]
Costs expensed (reversed)	20,000,000
Operating Segments | GIS
Restructuring Cost and Reserve [Line Items]
Restructuring costs	37,000,000
Composition of Workforce Restructuring Liability [Roll Forward]
Costs expensed (reversed)	37,000,000
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0
Composition of Workforce Restructuring Liability [Roll Forward]
Costs expensed (reversed)	$ 0