Annual report [Section 13 and 15(d), not S-K Item 405]

Note 3 - Business Combinations - Identifiable Intangible Assets (Details)

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Note 3 - Business Combinations - Identifiable Intangible Assets (Details) - USD ($)
$ in Millions
Jan. 31, 2025
Jan. 31, 2024
Developed Technology Rights [Member]    
Finite-Lived Intangible Asset, Useful Life (Year) 2 years 2 years 8 months 12 days
Codecademy [Member]    
Intangibles $ 119  
Codecademy [Member] | Trade Names [Member]    
Finite-lived intangibles $ 44  
Finite-Lived Intangible Asset, Useful Life (Year) 13 years 9 months 18 days  
Codecademy [Member] | Developed Technology Rights [Member]    
Finite-lived intangibles $ 43  
Finite-Lived Intangible Asset, Useful Life (Year) 5 years  
Codecademy [Member] | Media Content [Member]    
Finite-lived intangibles $ 17  
Finite-Lived Intangible Asset, Useful Life (Year) 5 years  
Codecademy [Member] | Customer Relationships [Member]    
Finite-lived intangibles $ 15  
Finite-Lived Intangible Asset, Useful Life (Year) 5 years 9 months 18 days