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Cash Equivalents and Marketable Securities - Schedule of Unrealized Losses Aggregated by Investment Category (Details) - USD ($)
$ in Millions
Jul. 28, 2024
Jan. 28, 2024
Estimated Fair Value    
Less than 12 Months $ 8,411 $ 5,319
12 Months or Greater 1,370 1,696
Total 9,781 7,015
Gross Unrealized Loss    
Less than 12 Months (14) (9)
12 Months or Greater (5) (7)
Total (19) (16)
Debt securities issued by the U.S. Treasury    
Estimated Fair Value    
Less than 12 Months 1,210 3,343
12 Months or Greater 117 1,078
Total 1,327 4,421
Gross Unrealized Loss    
Less than 12 Months (1) (5)
12 Months or Greater (1) (5)
Total (2) (10)
Corporate debt securities    
Estimated Fair Value    
Less than 12 Months 3,170 1,306
12 Months or Greater 396 618
Total 3,566 1,924
Gross Unrealized Loss    
Less than 12 Months (5) (3)
12 Months or Greater (2) (2)
Total (7) (5)
Debt securities issued by U.S. government agencies    
Estimated Fair Value    
Less than 12 Months 4,031 670
12 Months or Greater 857 0
Total 4,888 670
Gross Unrealized Loss    
Less than 12 Months (8) (1)
12 Months or Greater (2) 0
Total $ (10) $ (1)