Revenues (Schedule of Timing of Revenue Recognition) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 29, 2019	Mar. 30, 2018	Mar. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	$ 4,731	$ 4,834	$ 4,019
Effect of Change | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	47
Products and services transferred at a point in time | Operating Segments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	511
Products and services transferred at a point in time | Operating Segments | Amounts Without Adoption of New Standard
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	314
Products and services transferred at a point in time | Operating Segments | Effect of Change | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	197
Products and services transferred over time | Operating Segments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	4,220
Products and services transferred over time | Operating Segments | Amounts Without Adoption of New Standard
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	4,370
Products and services transferred over time | Operating Segments | Effect of Change | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	(150)
Enterprise Security
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	2,323	2,554	2,355
Enterprise Security | Products and services transferred at a point in time | Operating Segments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	462
Enterprise Security | Products and services transferred at a point in time | Operating Segments | Amounts Without Adoption of New Standard
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	266
Enterprise Security | Products and services transferred at a point in time | Operating Segments | Effect of Change | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	196
Enterprise Security | Products and services transferred over time | Operating Segments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	1,861
Enterprise Security | Products and services transferred over time | Operating Segments | Amounts Without Adoption of New Standard
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	2,010
Enterprise Security | Products and services transferred over time | Operating Segments | Effect of Change | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	(149)
Consumer Cyber Safety
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	2,408	$ 2,280	$ 1,664
Consumer Cyber Safety | Products and services transferred at a point in time | Operating Segments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	49
Consumer Cyber Safety | Products and services transferred at a point in time | Operating Segments | Amounts Without Adoption of New Standard
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	48
Consumer Cyber Safety | Products and services transferred at a point in time | Operating Segments | Effect of Change | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	1
Consumer Cyber Safety | Products and services transferred over time | Operating Segments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	2,359
Consumer Cyber Safety | Products and services transferred over time | Operating Segments | Amounts Without Adoption of New Standard
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	2,360
Consumer Cyber Safety | Products and services transferred over time | Operating Segments | Effect of Change | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	$ (1)