Recent Accounting Standards (Schedule of Effect of New Accounting Pronouncement) (Details) - USD ($) $ in Millions	Dec. 28, 2018	Mar. 31, 2018	Mar. 30, 2018
Assets:
Accounts receivable, net	$ 723	$ 833	$ 809	[1]
Other current assets	422	506	522	[1]
Other long-term assets	1,268	1,333	526	[1]
Total assets	16,456	16,574	15,759	[1]
Liabilities:
Short-term contract liabilities	2,214	2,261	2,368	[1]
Other current liabilities	404	370	372	[1]
Long-term contract liabilities	701	673	735	[1]
Deferred income tax liabilities	626	639	592
Total liabilities	10,550	10,612	10,736	[1]
Stockholders’ equity:
Accumulated other comprehensive loss	(14)		4	[1]
Retained earnings	1,116	1,267	328	[1]
Total stockholders’ equity	5,906		5,023	[1]
Short-term deferred commissions	99	86	94
Long-term deferred commissions	92	92	35
Income tax receivable and prepaid income taxes	39	99	107
Long-term income tax receivable and prepaid income taxes	31	29	61
Deferred income tax assets	828	828	$ 46
Calculated under Revenue Guidance in Effect before Topic 606
Assets:
Accounts receivable, net	670
Other current assets	410
Other long-term assets	1,219
Total assets	16,342
Liabilities:
Short-term contract liabilities	2,310
Other current liabilities	371
Long-term contract liabilities	797
Deferred income tax liabilities	579
Total liabilities	10,662
Stockholders’ equity:
Accumulated other comprehensive loss	(8)
Retained earnings	884
Total stockholders’ equity	5,680
Short-term deferred commissions	90
Long-term deferred commissions	44
Accounting Standards Update 2016-16
Assets:
Accounts receivable, net		0
Other current assets		(8)
Other long-term assets		750
Total assets		742
Liabilities:
Short-term contract liabilities		0
Other current liabilities		0
Long-term contract liabilities		0
Deferred income tax liabilities		0
Total liabilities		0
Stockholders’ equity:
Retained earnings		742
Accounting Standards Update 2014-09
Assets:
Accounts receivable, net		24
Other current assets		(8)
Other long-term assets		57
Total assets		73
Liabilities:
Short-term contract liabilities		(107)
Other current liabilities		(2)
Long-term contract liabilities		(62)
Deferred income tax liabilities		47
Total liabilities		(124)
Stockholders’ equity:
Retained earnings		$ 197
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606
Assets:
Accounts receivable, net	53
Other current assets	12
Other long-term assets	49
Total assets	114
Liabilities:
Short-term contract liabilities	(96)
Other current liabilities	33
Long-term contract liabilities	(96)
Deferred income tax liabilities	47
Total liabilities	(112)
Stockholders’ equity:
Accumulated other comprehensive loss	(6)
Retained earnings	232
Total stockholders’ equity	$ 226

[1] Derived from audited financial statements.