Net Income Per Share (Schedule of Components of Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	6 Months Ended
Sep. 28, 2018	Sep. 29, 2017	Sep. 28, 2018	Sep. 29, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Loss from continuing operations	$ (8)	$ (16)	$ (73)	$ (126)
Income (loss) from discontinued operations, net of income taxes	0	4	5	(19)
Net loss	$ (8)	$ (12)	$ (68)	$ (145)
Income (loss) per share - basic and diluted:
Continuing operations (in dollars per share)	$ (0.01)	$ (0.03)	$ (0.12)	$ (0.21)
Discontinued operations (in dollars per share)	0.00	0.01	0.01	(0.03)
Net loss per share - basic and diluted (in dollars per share)	$ (0.01)	$ (0.02)	$ (0.11)	$ (0.24)
Weighted-average shares outstanding - basic and diluted (in shares)	630	615	627	612
Anti-dilutive shares excluded from diluted net income per share calculation (in shares)	141	145	141	145
Convertible debt
Income (loss) per share - basic and diluted:
Anti-dilutive shares excluded from diluted net income per share calculation (in shares)	91	91	91	91
Employee equity awards
Income (loss) per share - basic and diluted:
Anti-dilutive shares excluded from diluted net income per share calculation (in shares)	50	54	50	54

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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