Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 27, 2024	Jan. 28, 2023	Jan. 27, 2024	Jan. 28, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 2,634	$ 2,773	$ 6,272	$ 5,443
Available-for-sale investments:
Change in net unrealized gains and losses, net of tax benefit (expense) of $(73) and $(33) for the second quarter and first six months of fiscal 2024, respectively, and $(66) and $12 for the corresponding periods of fiscal 2023, respectively	229	187	99	(64)
Net (gains) losses reclassified into earnings, net of tax (benefit) expense of $(5) and $(9) for the second quarter and first six months of fiscal 2024, respectively, and $0 and $(1) for the corresponding periods of fiscal 2023, respectively	18	3	34	8
Total- Available-for-sale investments	247	190	133	(56)
Cash flow hedging instruments:
Change in unrealized gains and losses, net of tax benefit (expense) of $0 and $(9) for the second quarter and first six months of fiscal 2024, respectively, and $11 and $3 for the corresponding periods of fiscal 2023, respectively	1	(33)	30	(9)
Net (gains) losses reclassified into earnings, net of tax (benefit) expense of $2 and $5 for the second quarter and first six months of fiscal 2024, respectively, and $4 and $9 for the corresponding periods of fiscal 2023, respectively	(9)	(14)	(18)	(28)
Total- Cash flow hedging instruments	(8)	(47)	12	(37)
Net change in cumulative translation adjustment and actuarial gains and losses net of tax benefit (expense) of $0 and $1 for the second quarter and first six months of fiscal 2024, respectively, and $2 and $24 for the corresponding periods of fiscal 2023, respectively	274	389	(82)	129
Other comprehensive income	513	532	63	36
Comprehensive income	$ 3,147	$ 3,305	$ 6,335	$ 5,479