Cash Equivalents and Marketable Securities - Schedule of Securities (Details) - USD ($) $ in Millions	Jul. 28, 2024	Jan. 28, 2024
Summary of cash equivalents and marketable securities:
Amortized Cost	$ 33,899	$ 25,684
Unrealized Gain	86
Unrealized Loss	(19)
Estimated Fair Value	33,966	25,724
Cash Equivalents	8,148
Total Estimated Fair Value Disclosure	34,385
Marketable securities,total	26,237
Total marketable securities with fair value adjustments recorded in other comprehensive income
Summary of cash equivalents and marketable securities:
Amortized Cost	33,899	25,684
Unrealized Gain	86	56
Unrealized Loss	(19)	(16)
Estimated Fair Value	33,966	25,724
Cash Equivalents	8,148	7,020
Marketable Securities	25,818	18,704
Debt securities issued by the U.S. Treasury
Summary of cash equivalents and marketable securities:
Amortized Cost	14,051	9,517
Unrealized Gain	42	17
Unrealized Loss	(10)	(10)
Estimated Fair Value	14,083	9,524
Cash Equivalents	2,132	1,315
Marketable Securities	11,951	8,209
Corporate debt securities
Summary of cash equivalents and marketable securities:
Amortized Cost	11,994	10,126
Unrealized Gain	37	31
Unrealized Loss	(7)	(5)
Estimated Fair Value	12,024	10,152
Cash Equivalents	682	2,231
Marketable Securities	11,342	7,921
Money market funds
Summary of cash equivalents and marketable securities:
Amortized Cost	5,252	3,031
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	5,252	3,031
Cash Equivalents	5,252	3,031
Marketable Securities	0	0
Debt securities issued by U.S. government agencies
Summary of cash equivalents and marketable securities:
Amortized Cost	2,461	2,326
Unrealized Gain	7	8
Unrealized Loss	(2)	(1)
Estimated Fair Value	2,466	2,333
Cash Equivalents	50	89
Marketable Securities	2,416	2,244
Certificates of deposit
Summary of cash equivalents and marketable securities:
Amortized Cost	141	510
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	141	510
Cash Equivalents	32	294
Marketable Securities	109	216
Foreign government bonds
Summary of cash equivalents and marketable securities:
Amortized Cost		174
Unrealized Gain		0
Unrealized Loss		0
Estimated Fair Value		174
Cash Equivalents		60
Marketable Securities		$ 114
Publicly-held equity securities
Summary of cash equivalents and marketable securities:
Publicly-held equity securities	$ 419