Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Millions	Jan. 30, 2022	Jan. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 20,930	$ 11,348
Unrealized Gain	0	3
Unrealized Loss	(17)	0
Estimated Fair Value	20,913	11,351
Cash Equivalents	1,695	637
Marketable Securities	19,218	10,714
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	9,977	4,442
Unrealized Gain	0	2
Unrealized Loss	(3)	0
Estimated Fair Value	9,974	4,444
Cash Equivalents	1,102	234
Marketable Securities	8,872	4,210
Debt securities issued by the United States Treasury
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,314	2,846
Unrealized Gain	0	0
Unrealized Loss	(14)	0
Estimated Fair Value	7,300	2,846
Cash Equivalents	0	25
Marketable Securities	7,300	2,821
Debt securities issued by United States government agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,612	2,975
Unrealized Gain	0	1
Unrealized Loss	0	0
Estimated Fair Value	1,612	2,976
Cash Equivalents	256	28
Marketable Securities	1,356	2,948
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,561	705
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	1,561	705
Cash Equivalents	21	37
Marketable Securities	1,540	668
Money market funds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	316	313
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	316	313
Cash Equivalents	316	313
Marketable Securities	0	0
Foreign government bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	150	67
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	150	67
Cash Equivalents	0	0
Marketable Securities	$ 150	$ 67

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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