Contract Balances and Performance Obligations - Narrative (Details) - USD ($) $ in Billions	12 Months Ended
Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Revenue from Contract with Customer [Abstract]
Subscription revenue recognized that was included in total unearned revenue balance at beginning of period	$ 4.4	$ 4.0	$ 3.5

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

Name:	us-gaap_ContractWithCustomerLiabilityRevenueRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration