Segment Geographic and Significant Customer Information - Schedule of Financial Information by Segment (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Oct. 25, 2024	Oct. 27, 2023	Oct. 25, 2024	Oct. 27, 2023
Segment Reporting Information [Line Items]
Net revenues	$ 1,658	$ 1,562	$ 3,199	$ 2,994
Segment cost of revenues	464	437	892	857
Segment gross profit	$ 1,194	$ 1,125	$ 2,307	$ 2,137
Segment gross margin	72.00%	72.00%	72.10%	71.40%
Unallocated cost of revenues	$ 17	$ 15	$ 32	$ 31
Gross profit	$ 1,177	$ 1,110	$ 2,275	$ 2,106
Total gross margin	71.00%	71.10%	71.10%	70.30%
Operating Segments \| Hybrid Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	$ 1,490	$ 1,408	$ 2,872	$ 2,686
Segment cost of revenues	420	385	802	754
Segment gross profit	$ 1,070	$ 1,023	$ 2,070	$ 1,932
Segment gross margin	71.80%	72.70%	72.10%	71.90%
Operating Segments \| Public Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	$ 168	$ 154	$ 327	$ 308
Segment cost of revenues	44	52	90	103
Segment gross profit	$ 124	$ 102	$ 237	$ 205
Segment gross margin	73.80%	66.20%	72.50%	66.60%
Product [Member]
Segment Reporting Information [Line Items]
Net revenues	$ 768	$ 706	$ 1,437	$ 1,296
Segment cost of revenues	305	275	573	539
Product [Member] \| Operating Segments \| Hybrid Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	768	706	1,437	1,296
Segment cost of revenues	305	275	573	539
Product [Member] \| Operating Segments \| Public Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	0	0	0	0
Segment cost of revenues	0	0	0	0
Public Cloud
Segment Reporting Information [Line Items]
Net revenues	168	154	327	308
Segment cost of revenues	44	52	90	103
Public Cloud \| Operating Segments \| Hybrid Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	0	0	0	0
Segment cost of revenues	0	0	0	0
Public Cloud \| Operating Segments \| Public Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	168	154	327	308
Segment cost of revenues	44	52	90	103
Support
Segment Reporting Information [Line Items]
Net revenues	635	623	1,266	1,234
Segment cost of revenues	51	50	101	97
Support \| Operating Segments \| Hybrid Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	635	623	1,266	1,234
Segment cost of revenues	51	50	101	97
Support \| Operating Segments \| Public Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	0	0	0	0
Segment cost of revenues	0	0	0	0
Professional and Other Services
Segment Reporting Information [Line Items]
Net revenues	87	79	169	156
Segment cost of revenues	64	60	128	118
Professional and Other Services \| Operating Segments \| Hybrid Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	87	79	169	156
Segment cost of revenues	64	60	128	118
Professional and Other Services \| Operating Segments \| Public Cloud Segment
Segment Reporting Information [Line Items]
Net revenues	0	0	0	0
Segment cost of revenues	$ 0	$ 0	$ 0	$ 0