Financial Instruments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jan. 28, 2022	Jan. 29, 2021	Jan. 28, 2022	Jan. 29, 2021
Equity Securities and Other Investments
Gain (Loss) on Securities [Line Items]
Net unrealized gains (losses) on equity and other investments still held	$ 1	$ 17	$ 8	$ 28

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.

No definition available.

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