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PENSION AND OTHER POSTRETIREMENT BENEFITS 3 (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Other Postretirement Benefits [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | $ 0 | $ 0
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 20,396,000,000 | 18,995,000,000
Fair value of plan assets at end of year | 20,560,000,000 | 20,396,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 20,560,000,000 | 20,396,000,000
Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 8,450,000,000 | 7,307,000,000
Fair value of plan assets at end of year | 8,396,000,000 | 8,450,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 8,396,000,000 | 8,450,000,000
Honeywell common stock | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 3,319,000,000 |
Fair value of plan assets at end of year | 3,251,000,000 | 3,319,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 3,251,000,000 | 3,319,000,000
U.S. equities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
U.S. equities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 207,000,000 |
Fair value of plan assets at end of year | 229,000,000 | 207,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 229,000,000 | 207,000,000
Non-U.S. equities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,614,000,000 |
Fair value of plan assets at end of year | 824,000,000 | 1,614,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 824,000,000 | 1,614,000,000
Short Term investments [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,314,000,000 |
Fair value of plan assets at end of year | 1,767,000,000 | 1,314,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,767,000,000 | 1,314,000,000
Short Term investments [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 596,000,000 |
Fair value of plan assets at end of year | 571,000,000 | 596,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 571,000,000 | 596,000,000
Government securities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,520,000,000 |
Fair value of plan assets at end of year | 1,373,000,000 | 1,520,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,373,000,000 | 1,520,000,000
Government securities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 3,105,000,000 |
Fair value of plan assets at end of year | 3,893,000,000 | 3,105,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 3,893,000,000 | 3,105,000,000
Corporate bonds | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 10,190,000,000 |
Fair value of plan assets at end of year | 9,588,000,000 | 10,190,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 9,588,000,000 | 10,190,000,000
Corporate bonds | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,649,000,000 |
Fair value of plan assets at end of year | 1,681,000,000 | 1,649,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,681,000,000 | 1,649,000,000
Mortgage/Asset-backed securities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 982,000,000 |
Fair value of plan assets at end of year | 1,072,000,000 | 982,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,072,000,000 | 982,000,000
Mortgage/Asset-backed securities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 93,000,000 |
Fair value of plan assets at end of year | 79,000,000 | 93,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 79,000,000 | 93,000,000
Insurance contracts | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 7,000,000 |
Fair value of plan assets at end of year | 8,000,000 | 7,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 8,000,000 | 7,000,000
Insurance contracts | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 142,000,000 |
Fair value of plan assets at end of year | 123,000,000 | 142,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 123,000,000 | 142,000,000
Insurance Buy-in contracts [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 767,000,000 |
Fair value of plan assets at end of year | 691,000,000 | 767,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 691,000,000 | 767,000,000
Private Funds [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 65,000,000 |
Fair value of plan assets at end of year | 74,000,000 | 65,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 74,000,000 | 65,000,000
Real Estate Funds - Global [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 147,000,000 |
Fair value of plan assets at end of year | 163,000,000 | 147,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 163,000,000 | 147,000,000
Direct Private Investments [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,220,000,000 |
Fair value of plan assets at end of year | 1,336,000,000 | 1,220,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,336,000,000 | 1,220,000,000
Real Estate Properties [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 651,000,000 |
Fair value of plan assets at end of year | 843,000,000 | 651,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 843,000,000 | 651,000,000
Total plan assets, excluding NAV assets [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 19,203,000,000 |
Fair value of plan assets at end of year | 19,238,000,000 | 19,203,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 19,238,000,000 | 19,203,000,000
Total plan assets, excluding NAV assets [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 8,385,000,000 |
Fair value of plan assets at end of year | 8,328,000,000 | 8,385,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 8,328,000,000 | 8,385,000,000
NAV assets, Private funds [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,105,000,000 |
Fair value of plan assets at end of year | 1,244,000,000 | 1,105,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,244,000,000 | 1,105,000,000
NAV assets, Private funds [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 18,000,000 |
Fair value of plan assets at end of year | 17,000,000 | 18,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 17,000,000 | 18,000,000
NAV assets, Real estate funds [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 26,000,000 |
Fair value of plan assets at end of year | 14,000,000 | 26,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 14,000,000 | 26,000,000
NAV assets, Real estate funds [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 47,000,000 |
Fair value of plan assets at end of year | 51,000,000 | 47,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 51,000,000 | 47,000,000
NAV Assets Comingled Funds [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 62,000,000 |
Fair value of plan assets at end of year | 64,000,000 | 62,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 64,000,000 | 62,000,000
Fair Value, Inputs, Level 1 [Member] | Honeywell common stock | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 3,319,000,000 |
Fair value of plan assets at end of year | 3,251,000,000 | 3,319,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 3,251,000,000 | 3,319,000,000
Fair Value, Inputs, Level 1 [Member] | U.S. equities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | U.S. equities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 1,000,000 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,000,000 | 0
Fair Value, Inputs, Level 1 [Member] | Non-U.S. equities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 66,000,000 |
Fair value of plan assets at end of year | 0 | 66,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 66,000,000
Fair Value, Inputs, Level 1 [Member] | Short Term investments [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,314,000,000 |
Fair value of plan assets at end of year | 1,767,000,000 | 1,314,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,767,000,000 | 1,314,000,000
Fair Value, Inputs, Level 1 [Member] | Short Term investments [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 596,000,000 |
Fair value of plan assets at end of year | 571,000,000 | 596,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 571,000,000 | 596,000,000
Fair Value, Inputs, Level 1 [Member] | Government securities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Government securities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Corporate bonds | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Corporate bonds | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Mortgage/Asset-backed securities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Mortgage/Asset-backed securities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Insurance contracts | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Insurance contracts | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Insurance Buy-in contracts [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Private Funds [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Real Estate Funds - Global [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Direct Private Investments [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Real Estate Properties [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Total plan assets, excluding NAV assets [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 4,633,000,000 |
Fair value of plan assets at end of year | 5,018,000,000 | 4,633,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 5,018,000,000 | 4,633,000,000
Fair Value, Inputs, Level 1 [Member] | Total plan assets, excluding NAV assets [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 662,000,000 |
Fair value of plan assets at end of year | 572,000,000 | 662,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 572,000,000 | 662,000,000
Fair Value, Inputs, Level 2 [Member] | Honeywell common stock | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] | U.S. equities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] | U.S. equities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 207,000,000 |
Fair value of plan assets at end of year | 228,000,000 | 207,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 228,000,000 | 207,000,000
Fair Value, Inputs, Level 2 [Member] | Non-U.S. equities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,548,000,000 |
Fair value of plan assets at end of year | 824,000,000 | 1,548,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 824,000,000 | 1,548,000,000
Fair Value, Inputs, Level 2 [Member] | Short Term investments [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Short Term investments [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Government securities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,520,000,000 |
Fair value of plan assets at end of year | 1,373,000,000 | 1,520,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,373,000,000 | 1,520,000,000
Fair Value, Inputs, Level 2 [Member] | Government securities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 3,105,000,000 |
Fair value of plan assets at end of year | 3,893,000,000 | 3,105,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 3,893,000,000 | 3,105,000,000
Fair Value, Inputs, Level 2 [Member] | Corporate bonds | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 10,190,000,000 |
Fair value of plan assets at end of year | 9,588,000,000 | 10,190,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 9,588,000,000 | 10,190,000,000
Fair Value, Inputs, Level 2 [Member] | Corporate bonds | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,649,000,000 |
Fair value of plan assets at end of year | 1,681,000,000 | 1,649,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,681,000,000 | 1,649,000,000
Fair Value, Inputs, Level 2 [Member] | Mortgage/Asset-backed securities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 982,000,000 |
Fair value of plan assets at end of year | 1,072,000,000 | 982,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,072,000,000 | 982,000,000
Fair Value, Inputs, Level 2 [Member] | Mortgage/Asset-backed securities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 93,000,000 |
Fair value of plan assets at end of year | 79,000,000 | 93,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 79,000,000 | 93,000,000
Fair Value, Inputs, Level 2 [Member] | Insurance contracts | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 7,000,000 |
Fair value of plan assets at end of year | 8,000,000 | 7,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 8,000,000 | 7,000,000
Fair Value, Inputs, Level 2 [Member] | Insurance contracts | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 142,000,000 |
Fair value of plan assets at end of year | 123,000,000 | 142,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 123,000,000 | 142,000,000
Fair Value, Inputs, Level 2 [Member] | Insurance Buy-in contracts [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Private Funds [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 36,000,000 |
Fair value of plan assets at end of year | 41,000,000 | 36,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 41,000,000 | 36,000,000
Fair Value, Inputs, Level 2 [Member] | Real Estate Funds - Global [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Direct Private Investments [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Real Estate Properties [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Total plan assets, excluding NAV assets [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 12,699,000,000 |
Fair value of plan assets at end of year | 12,041,000,000 | 12,699,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 12,041,000,000 | 12,699,000,000
Fair Value, Inputs, Level 2 [Member] | Total plan assets, excluding NAV assets [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 6,780,000,000 |
Fair value of plan assets at end of year | 6,869,000,000 | 6,780,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 6,869,000,000 | 6,780,000,000
Fair Value, Inputs, Level 3 [Member] | Honeywell common stock | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | U.S. equities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | U.S. equities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Non-U.S. equities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Short Term investments [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Short Term investments [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Government securities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Government securities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Corporate bonds | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Corporate bonds | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Mortgage/Asset-backed securities | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Mortgage/Asset-backed securities | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Insurance contracts | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Insurance contracts | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 0 |
Fair value of plan assets at end of year | 0 | 0
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Insurance Buy-in contracts [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 767,000,000 | 0
Relating to assets still held at year-end | (76,000,000) | 0
Relating to assets sold during the year | 0 | 0
Purchases | 0 | 767,000,000
Sales and settlements | 0 | 0
Fair value of plan assets at end of year | 691,000,000 | 767,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 691,000,000 | 767,000,000
Fair Value, Inputs, Level 3 [Member] | Private Funds [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 29,000,000 | 34,000,000
Relating to assets still held at year-end | 4,000,000 | (5,000,000)
Relating to assets sold during the year | 0 | 0
Purchases | 0 | 0
Sales and settlements | 0 | 0
Fair value of plan assets at end of year | 33,000,000 | 29,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 33,000,000 | 29,000,000
Fair Value, Inputs, Level 3 [Member] | Real Estate Funds - Global [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 147,000,000 | 150,000,000
Relating to assets still held at year-end | 23,000,000 | (3,000,000)
Relating to assets sold during the year | 4,000,000 | 0
Purchases | 0 | 0
Sales and settlements | (11,000,000) | 0
Fair value of plan assets at end of year | 163,000,000 | 147,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 163,000,000 | 147,000,000
Fair Value, Inputs, Level 3 [Member] | Direct Private Investments [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,220,000,000 | 950,000,000
Relating to assets still held at year-end | 11,000,000 | 100,000,000
Relating to assets sold during the year | 174,000,000 | 53,000,000
Purchases | 194,000,000 | 221,000,000
Sales and settlements | (263,000,000) | (104,000,000)
Fair value of plan assets at end of year | 1,336,000,000 | 1,220,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 1,336,000,000 | 1,220,000,000
Fair Value, Inputs, Level 3 [Member] | Real Estate Properties [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 651,000,000 | 619,000,000
Relating to assets still held at year-end | 96,000,000 | (4,000,000)
Relating to assets sold during the year | 0 | 0
Purchases | 99,000,000 | 59,000,000
Sales and settlements | (3,000,000) | (23,000,000)
Fair value of plan assets at end of year | 843,000,000 | 651,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 843,000,000 | 651,000,000
Fair Value, Inputs, Level 3 [Member] | Total plan assets, excluding NAV assets [Member] | UNITED STATES |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 1,871,000,000 |
Fair value of plan assets at end of year | 2,179,000,000 | 1,871,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | 2,179,000,000 | 1,871,000,000
Fair Value, Inputs, Level 3 [Member] | Total plan assets, excluding NAV assets [Member] | Foreign Plan [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value of plan assets at beginning of year | 943,000,000 |
Fair value of plan assets at end of year | 887,000,000 | 943,000,000
Defined Benefit Plan Disclosure [Abstract] |  |
Fair value of pension plan assets | $ 887,000,000 | $ 943,000,000

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