Recent Accounting Standards (Schedule of Effect of New Accounting Pronouncement) (Details) - USD ($) $ in Millions	Sep. 28, 2018	Mar. 31, 2018	Mar. 30, 2018
Assets:
Accounts receivable, net	$ 537	$ 833	$ 809	[1]
Other current assets	445	506	522	[1]
Other long-term assets	1,277	1,333	526	[1]
Total assets	16,234	16,574	15,759	[1]
Liabilities:
Short-term contract liabilities	2,113	2,261	2,368	[1]
Other current liabilities	378	370	372	[1]
Long-term contract liabilities	633	673	735	[1]
Deferred income tax liabilities	652	639	592	[1]
Total liabilities	10,284	10,612	10,736	[1]
Stockholders’ equity:
Accumulated other comprehensive loss	(17)		4	[1]
Retained earnings	1,100	1,267	328	[1]
Total stockholders’ equity	5,950		5,023	[1]
Short-term deferred commissions	92	86	94
Long-term deferred commissions	88	92	35
Income tax receivable and prepaid income taxes	64	99	107
Long-term income tax receivable and prepaid income taxes	26	29	61
Deferred income tax assets	834	828	$ 46
Calculated under Revenue Guidance in Effect before Topic 606
Assets:
Accounts receivable, net	491
Other current assets	431
Other long-term assets	1,229
Total assets	16,126
Liabilities:
Short-term contract liabilities	2,213
Other current liabilities	347
Long-term contract liabilities	715
Deferred income tax liabilities	606
Total liabilities	10,389
Stockholders’ equity:
Accumulated other comprehensive loss	(13)
Retained earnings	883
Total stockholders’ equity	5,737
Short-term deferred commissions	82
Long-term deferred commissions	41
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	46
Other current assets	14
Other long-term assets	48
Total assets	108
Liabilities:
Short-term contract liabilities	(100)
Other current liabilities	31
Long-term contract liabilities	(82)
Deferred income tax liabilities	46
Total liabilities	(105)
Stockholders’ equity:
Accumulated other comprehensive loss	(4)
Retained earnings	217
Total stockholders’ equity	$ 213

[1] Derived from audited financial statements.