Supplementary Information (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Mar. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of assets to be disposed of	$ 74
Depreciation and amortization	122	$ 139	$ 151
Decrease in deferred income tax assets	16	$ (70)	$ (1,848)
Enterprise Security | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Decrease in deferred income tax assets	454
Land and Building
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of assets to be disposed of	$ 24