COMMITMENTS AND CONTINGENCIES - Asbestos-Related Liabilities (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Asbestos Related Liabilities Insurance Recoveries [Roll Forward]
Insurance recoveries for asbestos related liabilities	$ 272	$ 322
Asbestos-related liabilities	1,780	1,800
Total
Loss Contingency Accrual [Roll Forward]
Asbestos related liabilities, beginning of period	2,061
Accrual for update to estimated liability	65
Change in estimated cost of future claims	15
Asbestos-related liability payments	(125)
Asbestos related liabilities, end of period	2,016
Asbestos Related Liabilities Insurance Recoveries [Roll Forward]
Insurance recoveries, beginning of period	363
Insurance receipts for asbestos-related liabilities	(50)
Insurance recoveries, end of period	313
Other current assets	41	41
Insurance recoveries for asbestos related liabilities	272	322
Total assets	313	363
Accrued liabilities	236	261
Asbestos-related liabilities	1,780	1,800
Total liabilities	2,016	2,061
Bendix
Loss Contingency Accrual [Roll Forward]
Asbestos related liabilities, beginning of period	1,372
Accrual for update to estimated liability	31
Change in estimated cost of future claims	15
Asbestos-related liability payments	(100)
Asbestos related liabilities, end of period	1,318
Asbestos Related Liabilities Insurance Recoveries [Roll Forward]
Insurance recoveries, beginning of period	142
Insurance receipts for asbestos-related liabilities	(4)
Insurance recoveries, end of period	138
Total assets	138	142
Total liabilities	1,318	1,372
NARCO
Loss Contingency Accrual [Roll Forward]
Asbestos related liabilities, beginning of period	689
Accrual for update to estimated liability	34
Change in estimated cost of future claims	0
Asbestos-related liability payments	(25)
Asbestos related liabilities, end of period	698
Asbestos Related Liabilities Insurance Recoveries [Roll Forward]
Insurance recoveries, beginning of period	221
Insurance receipts for asbestos-related liabilities	(46)
Insurance recoveries, end of period	175
Total assets	175	221
Total liabilities	698	$ 689
Annual trust cap	$ 145

Amount of annual cap on NARCO Trust

No definition available.

Name:	hon_AnnualTrustCap
Namespace Prefix:	hon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Listing of asbestos related liabilities, insurance recoveries

+ References

No definition available.

+ Details

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

- Definition

Loss Contingency Accrual, Adjustment

+ References

No definition available.

+ Details

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

- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349

+ Details

Name:	us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of loss contingency liability expected to be resolved within one year or the normal operating cycle, if longer.

+ References

+ Details

Name:	us-gaap_LossContingencyAccrualCarryingValueCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of loss contingency liability expected to be resolved after one year or beyond the normal operating cycle, if longer.

+ References

+ Details

Name:	us-gaap_LossContingencyAccrualCarryingValueNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash outflow reducing loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

+ Details

Name:	us-gaap_LossContingencyAccrualPayments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

+ References

+ Details

Name:	us-gaap_LossContingencyAccrualProvision
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

- Definition

Amount of receivable related to a loss contingency accrual. For example, an insurance recovery receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12053-110248

+ Details

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

- Definition

Amount of receivable related to a loss contingency accrual that is expected to be collected within one year or the normal operating cycle, if longer. For example, an insurance recovery receivable.

+ References

+ Details

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

- Definition

Amount of receivable related to a loss contingency accrual that is expected to be collected after one year or beyond the normal operating cycle, if longer. For example, an insurance recovery receivable.

+ References

+ Details

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

- Definition

Amount of cash inflow from the collection of receivables related to a loss contingency.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12053-110248

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3367-108585

+ Details

Name:	us-gaap_LossContingencyReceivableProceeds
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hon_AsbestosRelatedLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hon_BendixAsbestosLossContingencyLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hon_NarcoAsbestosLossContingencyLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: