Document and Entity Information	9 Months Ended
	Sep. 30, 2012	Oct. 19, 2012
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Trading Symbol	HOT
Entity Registrant Name	STARWOOD HOTEL & RESORTS WORLDWIDE, INC
Entity Central Index Key	0000316206
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		195,977,206