Commitments (Narrative) (Details) (Letter of Credit [Member], USD $) In Millions	Apr. 30, 2011
Letter of Credit [Member]
Value of outstanding letters of credit	$ 10.5

Name:

crm_DebtInstrumentThirdPartyCreditEnhancementAmount

Namespace Prefix:

crm

Data Type:

xbrli:monetaryItemType

Balance Type:

credit

Period Type:

instant