Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Jul. 31, 2020	Jul. 26, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 491	$ 877
Other comprehensive income (loss), net of tax:
Unrealized gain on investment securities	125	56
Translation adjustment	1,117	66
Net investment hedge	(1,112)	99
Net change in retirement obligations	3	13
Unrealized loss on cash flow hedges	(350)	(7)
Other comprehensive (loss) income	(217)	227
Comprehensive income including noncontrolling interests	274	1,104
Comprehensive income attributable to noncontrolling interests	(9)	(13)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	$ 265	$ 1,091