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COVER PAGE - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2024
Jan. 24, 2025
Jun. 30, 2024
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 1-8974    
Entity Registrant Name Honeywell International Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 22-2640650    
Entity Address, Address Line One 855 South Mint Street    
Entity Address, City or Town Charlotte,    
Entity Address, State or Province NC    
Entity Address, Postal Zip Code 28202    
City Area Code 704    
Local Phone Number 627-6200    
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    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 138.7
Entity Common Stock, Shares Outstanding   649,918,551  
Documents Incorporated by Reference Certain information required by Part III is incorporated by reference from the Registrant's definitive proxy statement for the Annual Meeting of Shareowners, or an amendment to this Form 10-K, which the Registrant intends to file with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Central Index Key 0000773840    
Common stock, par value      
Entity Information [Line Items]      
Title of 12(b) Security Common Stock, par value $1 per share    
Trading Symbol HON    
Security Exchange Name NASDAQ    
3.50% euro notes due 2027      
Entity Information [Line Items]      
Title of 12(b) Security 3.500% Senior Notes due 2027    
Trading Symbol HON 27    
Security Exchange Name NASDAQ    
2.25% euro notes due 2028      
Entity Information [Line Items]      
Title of 12(b) Security 2.250% Senior Notes due 2028    
Trading Symbol HON 28A    
Security Exchange Name NASDAQ    
3.375% euro notes due 2030      
Entity Information [Line Items]      
Title of 12(b) Security 3.375% Senior Notes due 2030    
Trading Symbol HON 30    
Security Exchange Name NASDAQ    
0.75% euro notes due 2032      
Entity Information [Line Items]      
Title of 12(b) Security 0.750% Senior Notes due 2032    
Trading Symbol HON 32    
Security Exchange Name NASDAQ    
3.75% euro notes due 2032      
Entity Information [Line Items]      
Title of 12(b) Security 3.750% Senior Notes due 2032    
Trading Symbol HON 32A    
Security Exchange Name NASDAQ    
4.125% euro notes due 2034      
Entity Information [Line Items]      
Title of 12(b) Security 4.125% Senior Notes due 2034    
Trading Symbol HON 34    
Security Exchange Name NASDAQ    
3.75% euro notes due 2036      
Entity Information [Line Items]      
Title of 12(b) Security 3.750% Senior Notes due 2036    
Trading Symbol HON 36    
Security Exchange Name NASDAQ