Supplementary Information (Other Long-term Assets) (Details) - USD ($) $ in Millions	Jun. 29, 2018	Mar. 31, 2018	Mar. 30, 2018
Disaggregation of Revenue [Line Items]
Cost method investments	$ 175		$ 175
Equity method investment	108		134
Long-term income tax receivable and prepaid income taxes	29	$ 29	61
Deferred income tax assets	828	828	46
Long-term deferred commissions	88	92	35
Other	80		75
Total other long-term assets	$ 1,308	$ 1,333	$ 526	[1]

[1] Derived from audited financial statements.