Segment and Geographical Information (Reconciliation of Total Segment Operating Income to Total Consolidated Operating Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 29, 2018	Jun. 30, 2017
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	$ 2	$ (44)
Stock-based compensation expense	113	147
Amortization of intangible assets	53	59
Restructuring, transition and other costs	96	88
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	319	324
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Stock-based compensation expense	113	147
Amortization of intangible assets	111	114
Restructuring, transition and other costs	96	88
Acquisition-related costs	2	19
Other Nonrecurring (Income) Expense	$ (5)	$ 0