Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 23, 2015
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	GOOG, GOOGL
Entity Registrant Name	Google Inc.
Entity Central Index Key	0001288776
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Class A Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		288,264,671
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		52,452,377
Class C Capital Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		341,692,317