XML 154 R111.htm IDEA: XBRL DOCUMENT v3.20.4

PENSION AND OTHER POSTRETIREMENT BENEFITS 3 (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
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	$ 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	18,995,000,000	17,109,000,000
Fair value of plan assets at end of year	20,396,000,000	18,995,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	18,995,000,000	18,995,000,000	20,396,000,000	18,995,000,000
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	7,307,000,000	6,481,000,000
Fair value of plan assets at end of year	8,450,000,000	7,307,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	7,307,000,000	7,307,000,000	8,450,000,000	7,307,000,000
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	2,857,000,000
Fair value of plan assets at end of year	3,319,000,000	2,857,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	2,857,000,000	2,857,000,000	3,319,000,000	2,857,000,000
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	1,227,000,000
Fair value of plan assets at end of year	0	1,227,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,227,000,000	1,227,000,000	0	1,227,000,000
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	149,000,000
Fair value of plan assets at end of year	207,000,000	149,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	149,000,000	149,000,000	207,000,000	149,000,000
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	1,384,000,000
Fair value of plan assets at end of year	1,614,000,000	1,384,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,384,000,000	1,384,000,000	1,614,000,000	1,384,000,000
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	1,395,000,000
Fair value of plan assets at end of year	1,314,000,000	1,395,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,395,000,000	1,395,000,000	1,314,000,000	1,395,000,000
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	522,000,000
Fair value of plan assets at end of year	596,000,000	522,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	522,000,000	522,000,000	596,000,000	522,000,000
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	1,146,000,000
Fair value of plan assets at end of year	1,520,000,000	1,146,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,146,000,000	1,146,000,000	1,520,000,000	1,146,000,000
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	3,006,000,000
Fair value of plan assets at end of year	3,105,000,000	3,006,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	3,006,000,000	3,006,000,000	3,105,000,000	3,006,000,000
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	8,603,000,000
Fair value of plan assets at end of year	10,190,000,000	8,603,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	8,603,000,000	8,603,000,000	10,190,000,000	8,603,000,000
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	1,746,000,000
Fair value of plan assets at end of year	1,649,000,000	1,746,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,746,000,000	1,746,000,000	1,649,000,000	1,746,000,000
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	1,023,000,000
Fair value of plan assets at end of year	982,000,000	1,023,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,023,000,000	1,023,000,000	982,000,000	1,023,000,000
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	84,000,000
Fair value of plan assets at end of year	93,000,000	84,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	84,000,000	84,000,000	93,000,000	84,000,000
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	8,000,000
Fair value of plan assets at end of year	7,000,000	8,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	8,000,000	8,000,000	7,000,000	8,000,000
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	120,000,000
Fair value of plan assets at end of year	142,000,000	120,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	120,000,000	120,000,000	142,000,000	120,000,000
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	0
Fair value of plan assets at end of year	767,000,000	0
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	0	0	767,000,000	0
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	69,000,000
Fair value of plan assets at end of year	65,000,000	69,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	69,000,000	69,000,000	65,000,000	69,000,000
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	150,000,000
Fair value of plan assets at end of year	147,000,000	150,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	150,000,000	150,000,000	147,000,000	150,000,000
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	950,000,000
Fair value of plan assets at end of year	1,220,000,000	950,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	950,000,000	950,000,000	1,220,000,000	950,000,000
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	619,000,000
Fair value of plan assets at end of year	651,000,000	619,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	619,000,000	619,000,000	651,000,000	619,000,000
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	17,828,000,000
Fair value of plan assets at end of year	19,203,000,000	17,828,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	17,828,000,000	17,828,000,000	19,203,000,000	17,828,000,000
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	7,230,000,000
Fair value of plan assets at end of year	8,385,000,000	7,230,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	7,230,000,000	7,230,000,000	8,385,000,000	7,230,000,000
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	1,019,000,000
Fair value of plan assets at end of year	1,105,000,000	1,019,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,019,000,000	1,019,000,000	1,105,000,000	1,019,000,000
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	21,000,000
Fair value of plan assets at end of year	18,000,000	21,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	21,000,000	21,000,000	18,000,000	21,000,000
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	42,000,000
Fair value of plan assets at end of year	26,000,000	42,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	42,000,000	42,000,000	26,000,000	42,000,000
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	56,000,000
Fair value of plan assets at end of year	47,000,000	56,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	56,000,000	56,000,000	47,000,000	56,000,000
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	106,000,000
Fair value of plan assets at end of year	62,000,000	106,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	106,000,000	106,000,000	62,000,000	106,000,000
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	2,857,000,000
Fair value of plan assets at end of year	3,319,000,000	2,857,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	2,857,000,000	2,857,000,000	3,319,000,000	2,857,000,000
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	1,227,000,000
Fair value of plan assets at end of year	0	1,227,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,227,000,000	1,227,000,000	0	1,227,000,000
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	0	0
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	0	0	0	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	54,000,000
Fair value of plan assets at end of year	66,000,000	54,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	54,000,000	54,000,000	66,000,000	54,000,000
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	1,395,000,000
Fair value of plan assets at end of year	1,314,000,000	1,395,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,395,000,000	1,395,000,000	1,314,000,000	1,395,000,000
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	522,000,000
Fair value of plan assets at end of year	596,000,000	522,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	522,000,000	522,000,000	596,000,000	522,000,000
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	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	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	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	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	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	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	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	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	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	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	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	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	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	5,479,000,000
Fair value of plan assets at end of year	4,633,000,000	5,479,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	5,479,000,000	5,479,000,000	4,633,000,000	5,479,000,000
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	576,000,000
Fair value of plan assets at end of year	662,000,000	576,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	576,000,000	576,000,000	662,000,000	576,000,000
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	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	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	149,000,000
Fair value of plan assets at end of year	207,000,000	149,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	149,000,000	149,000,000	207,000,000	149,000,000
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	1,330,000,000
Fair value of plan assets at end of year	1,548,000,000	1,330,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,330,000,000	1,330,000,000	1,548,000,000	1,330,000,000
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	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	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	1,146,000,000
Fair value of plan assets at end of year	1,520,000,000	1,146,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,146,000,000	1,146,000,000	1,520,000,000	1,146,000,000
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	3,006,000,000
Fair value of plan assets at end of year	3,105,000,000	3,006,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	3,006,000,000	3,006,000,000	3,105,000,000	3,006,000,000
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	8,603,000,000
Fair value of plan assets at end of year	10,190,000,000	8,603,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	8,603,000,000	8,603,000,000	10,190,000,000	8,603,000,000
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	1,746,000,000
Fair value of plan assets at end of year	1,649,000,000	1,746,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,746,000,000	1,746,000,000	1,649,000,000	1,746,000,000
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	1,023,000,000
Fair value of plan assets at end of year	982,000,000	1,023,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,023,000,000	1,023,000,000	982,000,000	1,023,000,000
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	84,000,000
Fair value of plan assets at end of year	93,000,000	84,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	84,000,000	84,000,000	93,000,000	84,000,000
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	8,000,000
Fair value of plan assets at end of year	7,000,000	8,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	8,000,000	8,000,000	7,000,000	8,000,000
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	120,000,000
Fair value of plan assets at end of year	142,000,000	120,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	120,000,000	120,000,000	142,000,000	120,000,000
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	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	35,000,000
Fair value of plan assets at end of year	36,000,000	35,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	35,000,000	35,000,000	36,000,000	35,000,000
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	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	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	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	10,780,000,000
Fair value of plan assets at end of year	12,699,000,000	10,780,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	10,780,000,000	10,780,000,000	12,699,000,000	10,780,000,000
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	6,470,000,000
Fair value of plan assets at end of year	6,780,000,000	6,470,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	6,470,000,000	6,470,000,000	6,780,000,000	6,470,000,000
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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	0	0
Relating to assets still held at year-end			0	0
Relating to assets sold during the year	0	0
Purchases	767,000,000	0
Sales and settlements	0	0
Fair value of plan assets at end of year	767,000,000	0
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	0	0	767,000,000	0
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	34,000,000	34,000,000
Relating to assets still held at year-end			(5,000,000)	0
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	29,000,000	34,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	29,000,000	34,000,000	29,000,000	34,000,000
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	150,000,000	144,000,000
Relating to assets still held at year-end			(3,000,000)	7,000,000
Relating to assets sold during the year	0	1,000,000
Purchases	0	0
Sales and settlements	0	(2,000,000)
Fair value of plan assets at end of year	147,000,000	150,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	150,000,000	144,000,000	147,000,000	150,000,000
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	950,000,000	829,000,000
Relating to assets still held at year-end			100,000,000	15,000,000
Relating to assets sold during the year	53,000,000	89,000,000
Purchases	221,000,000	216,000,000
Sales and settlements	(104,000,000)	(199,000,000)
Fair value of plan assets at end of year	1,220,000,000	950,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	950,000,000	829,000,000	1,220,000,000	950,000,000
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	619,000,000	657,000,000
Relating to assets still held at year-end			(4,000,000)	40,000,000
Relating to assets sold during the year	0	(23,000,000)
Purchases	59,000,000	48,000,000
Sales and settlements	(23,000,000)	(103,000,000)
Fair value of plan assets at end of year	651,000,000	619,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	619,000,000	619,000,000	651,000,000	619,000,000
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	1,569,000,000
Fair value of plan assets at end of year	1,871,000,000	1,569,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	1,569,000,000	1,569,000,000	1,871,000,000	1,569,000,000
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	184,000,000
Fair value of plan assets at end of year	943,000,000	184,000,000
Defined Benefit Plan Disclosure [Abstract]
Fair value of pension plan assets	$ 184,000,000	$ 184,000,000	$ 943,000,000	$ 184,000,000

X

- Definition

Realized gains/(losses)of defined benefit pension plan

+ References

No definition available.

+ Details

Name:	hon_DefinedBenefitPensionPlanRealizedGainsLossesDuringPeriod
Namespace Prefix:	hon_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	hon_DefinedBenefitPlanDisclosureAbstract
Namespace Prefix:	hon_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Purchases of plan assets that occurred during the period

+ References

No definition available.

+ Details

Name:	hon_DefinedBenefitPlanPurchases
Namespace Prefix:	hon_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Sales and settlements of plan assets that occurred during the period

+ References

No definition available.

+ Details

Name:	hon_DefinedBenefitPlanSalesAndSettlements
Namespace Prefix:	hon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Unrealized gains/(losses) relating to defined benefit pension plan assets still held at the reporting date

+ References

No definition available.

+ Details

Name:	hon_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLossRelatingToAssetsStillHeld
Namespace Prefix:	hon_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(01)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(01)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(ii)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(ii)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=hon_OtherPostretirementBenefitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_ForeignPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_HoneywellCommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_UsCompaniesCommonStocksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_InternationalCommonStocksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_FixedIncomeInvestmentShortTermMoneyMarketMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_FixedIncomeInvestmentsGovernmentSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_FixedIncomeInvestmentCorporateBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_FixedIncomeInvestmentMortgageAssetBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_FixedIncomeInvestmentInsuranceContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_FixedIncomeInvestmentInsuranceBuyInContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_PrivateEquityFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_RealEstateFundsGlobalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_DirectPrivateInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_RealEstatePropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_TotalPlanAssetsExcludingNavAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_NavAssetsPrivateFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_NavAssetsRealEstateFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=hon_NavAssetsComingledFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: