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Debt - Outstanding Debt (Details) - USD ($) $ in Millions	Oct. 31, 2024	Jan. 31, 2024
Debt Instrument [Line Items]
Total principal amount	$ 3,000	$ 3,000
Less: unamortized debt discount and issuance costs	(17)	(20)
Debt, noncurrent	2,983	2,980
2027 Notes
Debt Instrument [Line Items]
Total principal amount	1,000	1,000
2029 Notes
Debt Instrument [Line Items]
Total principal amount	750	750
2032 Notes
Debt Instrument [Line Items]
Total principal amount	$ 1,250	$ 1,250

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