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Document and Entity Information
3 Months Ended
Mar. 26, 2010
Apr. 09, 2010
Document Type 10-Q  
Amendment Flag true  
Amendment Description Marriott International, Inc. is filing this Amendment No. 1 (the "Form 10-Q/A") to our Quarterly Report on Form 10-Q for the quarter ended March 26, 2010 (the "Form 10-Q"), filed with the Securities and Exchange Commission ("SEC") on April 23, 2010, for the sole purpose of correcting the Interactive Data File furnished as Exhibit 101. The previously furnished Interactive Data File showed that in our Document and Entity Information, the share count as of April 9, 2010 was 361,332,043 shares of Class A Common Stock and that this share data was "in millions." However, this data was in actual shares and we have deleted the "in millions" from our Document and Entity Information in our Exhibit 101 to this Form 10-Q/A. No other changes have been made to the Form 10-Q. This Form 10-Q/A continues to speak as of the original filing date of the Form 10-Q, does not reflect events that may have occurred subsequent to the original filing date, and does not modify or update any related disclosures made in the Form 10-Q.  
Document Period End Date Mar. 26, 2010  
Document Fiscal Year Focus 2010  
Document Fiscal Period Focus Q1  
Entity Registrant Name MARRIOTT INTERNATIONAL INC /MD/  
Entity Central Index Key 0001048286  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   361,332,043