| USD ($) $ in Millions | Dec 31, 2025 | Dec 31, 2024 | Dec 31, 2023 | Dec 31, 2022 | Dec 31, 2021 | Dec 31, 2020 | Dec 31, 2019 | Dec 31, 2018 | Dec 31, 2017 | Dec 31, 2016 | Dec 31, 2015 | Dec 31, 2014 | Dec 31, 2013 | Dec 31, 2012 | Dec 31, 2011 | Dec 31, 2010 | Dec 31, 2009 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Current assets | |||||||||||||||||
Cash and cash equivalents | $ 12,487 | $ 10,567 | $ 7,925 | ||||||||||||||
Short-term investments | 443 | 386 | 170 | ||||||||||||||
Accounts receivable, less allowances of $202 and $307, respectively | 7,621 | 7,819 | 7,530 | ||||||||||||||
Inventories | 6,162 | 6,442 | 6,178 | ||||||||||||||
Assets held for sale | 2,492 | 1,365 | - | ||||||||||||||
Deferred income taxes | 199 | 238 | 392 | ||||||||||||||
Other current assets | 1,182 | 1,329 | 1,699 | ||||||||||||||
Current assets of discontinued operations | 0 | - | - | ||||||||||||||
Deferred income taxes | - | - | - | ||||||||||||||
Investments and other current assets | - | - | - | ||||||||||||||
Total current assets | 30,387 | 27,908 | 23,502 | ||||||||||||||
Investments and long-term receivables | 1,404 | 1,394 | 939 | ||||||||||||||
Property, plant and equipment—net | 4,629 | 6,194 | 5,660 | ||||||||||||||
Goodwill | 21,079 | 21,825 | 18,049 | ||||||||||||||
Other intangible assets—net | 6,736 | 6,656 | 3,231 | ||||||||||||||
Insurance recoveries for asbestos-related liabilities | - | 171 | 170 | ||||||||||||||
Deferred income taxes | - | - | - | ||||||||||||||
Other assets | 9,247 | 10,810 | 9,582 | ||||||||||||||
Assets of discontinued operations | 0 | - | - | ||||||||||||||
Total assets | 73,681 | 75,196 | 61,525 | ||||||||||||||
Liabilities and Stockholders' Equity [Abstract] | |||||||||||||||||
LIABILITIES | |||||||||||||||||
Current liabilities | |||||||||||||||||
Accounts payable | 6,315 | 6,880 | 6,849 | ||||||||||||||
Commercial paper and other short-term borrowings | 5,893 | 4,273 | 2,085 | ||||||||||||||
Short-term borrowings | - | - | - | ||||||||||||||
Commercial paper | - | - | - | ||||||||||||||
Current maturities of long-term debt | 1,546 | 1,347 | 1,796 | ||||||||||||||
Accrued liabilities | 8,462 | 8,348 | 7,809 | ||||||||||||||
Liabilities held for sale | - | 408 | - | ||||||||||||||
Total current liabilities | 23,414 | 21,256 | 18,539 | ||||||||||||||
Long-term debt | 27,141 | 25,479 | 16,562 | ||||||||||||||
Deferred income taxes | 1,577 | 1,787 | 2,094 | ||||||||||||||
Postretirement benefit obligations other than pensions | 111 | 112 | 134 | ||||||||||||||
Asbestos-related liabilities | 0 | 1,325 | 1,490 | ||||||||||||||
Other liabilities | 6,408 | 6,076 | 6,265 | ||||||||||||||
Liabilities of discontinued operations | 0 | - | - | ||||||||||||||
Redeemable noncontrolling interest | 0 | 7 | 7 | ||||||||||||||
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] | |||||||||||||||||
SHAREOWNERS’ EQUITY | |||||||||||||||||
Capital—common stock issued | 958 | 958 | 958 | ||||||||||||||
Capital - additional paid in capital | 10,157 | 9,695 | 9,062 | ||||||||||||||
Common stock held in treasury, at cost | 43,029 | 39,378 | 38,008 | ||||||||||||||
Accumulated other comprehensive loss | (5,146) | (3,491) | (4,135) | ||||||||||||||
Retained earnings | 50,964 | 50,835 | 47,979 | ||||||||||||||
Total Honeywell shareowners’ equity | 13,904 | 18,619 | 15,856 | ||||||||||||||
Noncontrolling interest | 1,126 | 535 | 578 | ||||||||||||||
Total shareowners’ equity | 15,030 | 19,154 | 16,434 | ||||||||||||||
Stockholders' Equity, Number of Shares, Par Value and Other Disclosures [Abstract] | |||||||||||||||||
Total liabilities, redeemable noncontrolling interest and shareowners’ equity | $ 73,681 | $ 75,196 | $ 61,525 |