Derivatives and Currency Exchange Risk Management - (Gains) Losses Recognized in Income, Net Investment Hedges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 30, 2020	Oct. 25, 2019	Oct. 30, 2020	Oct. 25, 2019
Currency exchange rate contracts | Other operating expense, net | Net investment hedges
Derivative Instruments, (Gain) Loss [Line Items]
Recognized in Income, Net investment hedges	$ 0	$ 0	$ 0	$ 7