Segment Geographic and Significant Customer Information - Schedule of Financial Information by Segment (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jan. 28, 2022	Jan. 28, 2022	Jan. 29, 2021	Jan. 28, 2022	Jan. 29, 2021
Segment Reporting Information [Line Items]
Net revenues	$ 796	$ 1,614	$ 1,470	$ 4,638	$ 4,189
Segment cost of revenues		527	480	1,471	1,365
Segment gross profit		$ 1,087	$ 990	$ 3,167	$ 2,824
Segment gross margin		67.30%	67.30%	68.30%	67.40%
Unallocated cost of revenues		$ 14	$ 15	$ 36	$ 44
Gross profit		$ 1,073	$ 975	$ 3,131	$ 2,780
Total gross margin		66.50%	66.30%	67.50%	66.40%
Operating Segments \| Hybrid Cloud Segment
Segment Reporting Information [Line Items]
Net revenues		$ 1,504	$ 1,415	$ 4,362	$ 4,056
Segment cost of revenues		495	463	1,391	1,319
Segment gross profit		$ 1,009	$ 952	$ 2,971	$ 2,737
Segment gross margin		67.10%	67.30%	68.10%	67.50%
Operating Segments \| Public Cloud Segment
Segment Reporting Information [Line Items]
Net revenues		$ 110	$ 55	$ 276	$ 133
Segment cost of revenues		32	17	80	46
Segment gross profit		$ 78	$ 38	$ 196	$ 87
Segment gross margin		70.90%	69.10%	71.00%	65.40%
Product [Member]
Segment Reporting Information [Line Items]
Net revenues		$ 846	$ 775	$ 2,390	$ 2,151
Segment cost of revenues		404	361	1,099	1,018
Product [Member] \| Operating Segments \| Hybrid Cloud Segment
Segment Reporting Information [Line Items]
Net revenues		846	775	2,390	2,151
Segment cost of revenues		404	361	1,099	1,018
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		110	55	276	133
Segment cost of revenues		32	17	80	46
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		110	55	276	133
Segment cost of revenues		32	17	80	46
Support
Segment Reporting Information [Line Items]
Net revenues		586	571	1,754	1,701
Segment cost of revenues		45	49	141	150
Support \| Operating Segments \| Hybrid Cloud Segment
Segment Reporting Information [Line Items]
Net revenues		586	571	1,754	1,701
Segment cost of revenues		45	49	141	150
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		72	69	218	204
Segment cost of revenues		46	53	151	151
Professional and Other Services \| Operating Segments \| Hybrid Cloud Segment
Segment Reporting Information [Line Items]
Net revenues		72	69	218	204
Segment cost of revenues		46	53	151	151
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