| Document and Entity Information | Jul. 25, 2022 |
| Document And Entity Information [Line Items] | |
| Entity Registrant Name | HONEYWELL INTERNATIONAL INC |
| Amendment Flag | false |
| Entity Central Index Key | 0000773840 |
| Document Type | 8-K |
| Document Period End Date | Jul. 25, 2022 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 1-8974 |
| Entity Tax Identification Number | 22-2640650 |
| Entity Address, Address Line One | 855 S. 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Common Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Common Stock, par value $1 per share* |
| Trading Symbol | HON |
| Security Exchange Name | NASDAQ |
| Euro Notes 130 Due 2023 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 1.300% Senior Notes due 2023 |
| Trading Symbol | HON 23A |
| Security Exchange Name | NASDAQ |
| Euro 00 Term Loan Due 2024 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 0.000% Senior Notes due 2024 |
| Trading Symbol | HON 24A |
| Security Exchange Name | NASDAQ |
| Euro Notes 225 Due 2028 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 2.250% Senior Notes due 2028 |
| Trading Symbol | HON 28A |
| Security Exchange Name | NASDAQ |
| Euro 75 Term Loan Due 2032 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 0.750% Senior Notes due 2032 |
| Trading Symbol | HON 32 |
| Security Exchange Name | NASDAQ |
