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Convertible Senior Notes, Net - Schedule of Convertible Debt (Details) - Senior Notes - USD ($)
$ in Millions
Jan. 31, 2025
Jan. 31, 2024
2025 Notes    
Debt Instrument [Line Items]    
Principal $ 510 $ 552
Less: unamortized debt issuance costs (1) (3)
Net carrying amount 509 549
2026 Notes    
Debt Instrument [Line Items]    
Principal 350 608
Less: unamortized debt issuance costs (1) (3)
Net carrying amount $ 349 $ 605