Acquisitions and Divestiture Divestiture (Details) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
	Oct. 31, 2017	Dec. 28, 2018	Mar. 30, 2018	Dec. 29, 2017	Dec. 28, 2018	Dec. 29, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of other assets and liabilities		$ 0		$ 658	$ 0	$ 658
Income tax expense (benefit)		$ 38		(606)	$ 70	(683)
Disposal Group, Disposed of by Sale, Not Discontinued Operations | WSS and PKI Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total consideration received	$ 1,100
Cash proceeds from divestiture	960		$ 951
Net assets	450
Cumulative currency translation losses	8
Transaction costs	8
Gain on disposal	658
Gain on sale of short-term investment	7
Gain on sale of other assets and liabilities	651		$ 653
Income tax expense (benefit)	$ 123
Income before taxes				$ 8		$ 66
Disposal Group, Disposed of by Sale, Not Discontinued Operations | WSS and PKI Solutions | DigiCert
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Divested operation, equity investment received, percent	28.00%
Divested operation, equity investment received	$ 160