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Debt - Schedule of Interest Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Debt Disclosure [Abstract]
Contractual interest expense	$ 28	$ 28	$ 83	$ 83
Interest cost related to amortization of debt discount and issuance costs	1	1	3	3
Total interest expense	$ 29	$ 29	$ 86	$ 86

X

- Definition

Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

+ References

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-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69E
-Publisher FASB
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-SubTopic 30
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-3

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X

- References

No definition available.

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X

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

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-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(8))
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X

- Definition

Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(8))
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