Segment and Geographical Information (Reconciliation of Total Segment Operating Income to Total Consolidated Operating Income) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Sep. 28, 2018	Sep. 29, 2017	Sep. 28, 2018	Sep. 29, 2017
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	$ 102	$ (9)	$ 104	$ (53)
Stock-based compensation expense	97	176	210	323
Amortization of intangible assets	51	55	104	114
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	366	399	685	723
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Stock-based compensation expense	97	176	210	323
Amortization of intangible assets	110	116	221	230
Restructuring, transition and other costs	56	97	152	185
Acquisition-related costs	1	19	3	38
Other	$ 0	$ 0	$ (5)	$ 0

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Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities, restructurings pursuant to a duly authorized plan, the integration of acquisitions, consulting charges associated with the planning and design phase of implementing a new enterprise resource planning system, and costs related to the outsourcing of certain back office functions, excluding asset retirement obligations.

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