Segment and Geographical Information (Schedule of Product Revenue Information) (Details) - USD ($) $ in Millions	3 Months Ended
	Jul. 05, 2019	Jun. 29, 2018
Segment Reporting Information [Line Items]
Net revenues	$ 1,247	$ 1,156
Total Enterprise Security
Segment Reporting Information [Line Items]
Net revenues	611	556
Endpoint and information protection
Segment Reporting Information [Line Items]
Net revenues	261	249
Network and web security
Segment Reporting Information [Line Items]
Net revenues	196	173
Other products and services
Segment Reporting Information [Line Items]
Net revenues	154	134
Total Consumer Digital Safety
Segment Reporting Information [Line Items]
Net revenues	636	600
Consumer security
Segment Reporting Information [Line Items]
Net revenues	381	369
Identity and information protection
Segment Reporting Information [Line Items]
Net revenues	$ 255	$ 231