| Document And Entity Information | May 14, 2020 |
| Document Information Line Items | |
| Entity Registrant Name | HONEYWELL INTERNATIONAL INC |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Central Index Key | 0000773840 |
| Document Period End Date | May 14, 2020 |
| Entity Emerging Growth Company | false |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 1-8974 |
| Entity Tax Identification Number | 22-2640650 |
| Entity Address, Address Line One | 300 South Tryon 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 |
| Common Stock [Member] | |
| Document Information Line Items | |
| Trading Symbol | HON |
| Title of 12(b) Security | Common Stock, par value $1 per share* |
| Security Exchange Name | NYSE |
| 1.300% Senior Notes due 2023 [Member] | |
| Document Information Line Items | |
| Trading Symbol | HON 23A |
| Title of 12(b) Security | 1.300% Senior Notes due 2023 |
| Security Exchange Name | NYSE |
| 0.000% Senior Notes due 2024 [Member] | |
| Document Information Line Items | |
| Trading Symbol | HON 24A |
| Title of 12(b) Security | 0.000% Senior Notes due 2024 |
| Security Exchange Name | NYSE |
| 2.250% Senior Notes due 2028 [Member] | |
| Document Information Line Items | |
| Trading Symbol | HON 28A |
| Title of 12(b) Security | 2.250% Senior Notes due 2028 |
| Security Exchange Name | NYSE |
| 0.750% Senior Notes due 2032 [Member] | |
| Document Information Line Items | |
| Trading Symbol | HON 32 |
| Title of 12(b) Security | 0.750% Senior Notes due 2032 |
| Security Exchange Name | NYSE |
