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Convertible Senior Notes, Net - Schedule of Debt (Details) - Senior Notes - USD ($)
$ in Millions
Jul. 31, 2023
Jan. 31, 2023
2025 Notes    
Debt Instrument [Line Items]    
Principal $ 552 $ 1,060
Less: unamortized debt issuance costs (3) (8)
Net carrying amount 549 1,052
2026 Notes    
Debt Instrument [Line Items]    
Principal 908 1,150
Less: unamortized debt issuance costs (6) (9)
Net carrying amount $ 902 $ 1,141