Divestitures, Discontinued Operations and Assets Held for Sale (Narrative) (Details) - USD ($) $ in Millions						12 Months Ended
	Apr. 01, 2021	Oct. 01, 2020	Jul. 27, 2020	Jan. 31, 2020	Nov. 04, 2019	Apr. 02, 2021	Apr. 03, 2020	Mar. 29, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of business						$ 0	$ 5,684	$ 0
Gain on divestitures						0	250	0
Income tax expense						176	241	3
Income (loss) from discontinued operations						(142)	3,309	141
Impairment of assets to be disposed of							24
Proceeds from sale of properties held-for-sale	$ 100		$ 118
Gain on sale of properties	$ 63		$ 35			98	0	0
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations						(142)	3,309	141
Revenue from discontinued operations						1	1,368	2,288
Enterprise Security | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration from sale of businesses, including discontinued operations					$ 10,700
Gain on sale of business					5,434
Total net assets sold					5,211
Assets sold					7,121
Liabilities from divestiture of business					$ (1,910)
Dedicated direct costs, net of charges, for transition services agreement						9	19
Agreements, aggregate amount		$ 200
License period		5 years 7 months 6 days
ID Analytics | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration from sale of businesses, including discontinued operations				$ 375
Total net assets sold				125
Gain on divestitures				250
Goodwill and net intangible assets sold				114
Other assets sold, net of liabilities				11
Income tax expense				$ 86
Veritas | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations						$ 0	$ 0	15
Revenue from discontinued operations								$ 13