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Revenue - Summary of Disaggregation of Revenue (Detail) - USD ($) $ in Millions	12 Months Ended
	Apr. 26, 2019	Apr. 27, 2018	Apr. 28, 2017
Disaggregation Of Revenue [Line Items]
Net revenues	$ 6,146	$ 5,919	$ 5,491
Product Revenues
Disaggregation Of Revenue [Line Items]
Net revenues	3,755	3,525	3,060
Strategic
Disaggregation Of Revenue [Line Items]
Net revenues	2,709	2,468	2,000
Mature
Disaggregation Of Revenue [Line Items]
Net revenues	1,046	1,057	1,060
Software Maintenance Revenues
Disaggregation Of Revenue [Line Items]
Net revenues	946	902	905
Hardware Maintenance and Other Services Revenues
Disaggregation Of Revenue [Line Items]
Net revenues	1,445	1,492	1,526
Hardware Maintenance Support Contracts
Disaggregation Of Revenue [Line Items]
Net revenues	1,182	1,214	1,258
Professional and Other Services
Disaggregation Of Revenue [Line Items]
Net revenues	$ 263	$ 278	$ 268

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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