Description of the Business	6 Months Ended
Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of the Business	Description of the Business ServiceNow is a leading provider of enterprise cloud computing solutions that define, structure, manage and automate services for global enterprises. Our mission is to help our customers improve service levels and reduce costs while scaling and automating their businesses. We typically deliver our software via the Internet as a service, through an easy-to-use, consumer product-like interface, which means it can be easily configured and rapidly deployed. In a minority of cases, we deploy our service on-premises at a customer data center to support a customer's unique regulatory or security requirements.

The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).

No definition available.

Name:	us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration