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Cover - USD ($)
 12 Months Ended
Dec. 31, 2022
Feb. 21, 2023
Jun. 30, 2022
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Document Transition Report false    
Entity File Number 1-13087    
Entity Registrant Name BOSTON PROPERTIES, INC.    
Entity Central Index Key 0001037540    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 04-2473675    
Entity Address, Address Line One Prudential Center, 800 Boylston Street, Suite 1900    
Entity Address, City or Town Boston    
Entity Address, State or Province MA    
Entity Address, Postal Zip Code 02199-8103    
City Area Code 617    
Local Phone Number 236-3300    
Title of 12(b) Security Common Stock, par value $.01 per share    
Entity Listing, Par Value Per Share $ 0.01    
Trading Symbol BXP    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 13,917,004,905
Documents Incorporated by Reference Certain information contained in Boston Properties Inc.’s Proxy Statement relating to its Annual Meeting of Stockholders to be held May 23, 2023 is incorporated by reference in Items 10, 11, 12, 13 and 14 of Part III. Boston Properties, Inc. intends to file such Proxy Statement with the Securities and Exchange Commission not later than 120 days after the end of its fiscal year ended December 31, 2022.    
Entity Common Stock, Shares Outstanding   156,822,702  
Boston Properties Limited Partnership      
Entity Information [Line Items]      
Document Type 10-K    
Document Period End Date Dec. 31, 2022    
Entity File Number 0-50209    
Entity Registrant Name BOSTON PROPERTIES LIMITED PARTNERSHIP    
Entity Central Index Key 0001043121    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 04-3372948    
Title of 12(g) Security Units of Limited Partnership    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false