COMMITMENTS AND CONTINGENCIES 2 (Details)	6 Months Ended
Jun. 30, 2017 USD ($)
Asbestos Related Liabilities [Member]
Asbestos Related Liabilities Disclosure [Abstract]
Asbestos Related Liabilities, Beginning of Period	$ 1,560,000,000
Accrual for update to estimated liability	109,000,000
Asbestos related liability payments	(124,000,000)
Asbestos Related Liabilities, End of Period	1,545,000,000
Asbestos Related Liabilities Insurance Recoveries [Line Items]
Insurance Recoveries, beginning of period	440,000,000
Probable insurance recoveries related to estimated liability	8,000,000
Insurance receipts for asbestos related liabilities	(24,000,000)
Insurance recoveries, end of period	424,000,000
Bendix Asbestos Loss Contingency Liability [Member]
Asbestos Related Liabilities Disclosure [Abstract]
Asbestos Related Liabilities, Beginning of Period	641,000,000
Accrual for update to estimated liability	95,000,000
Asbestos related liability payments	(104,000,000)
Asbestos Related Liabilities, End of Period	632,000,000
Asbestos Related Liabilities Insurance Recoveries [Line Items]
Insurance Recoveries, beginning of period	121,000,000
Probable insurance recoveries related to estimated liability	8,000,000
Insurance receipts for asbestos related liabilities	(20,000,000)
Insurance recoveries, end of period	109,000,000
Narco Asbestos Loss Contingency Liability [Member]
Asbestos Related Liabilities Disclosure [Abstract]
Asbestos Related Liabilities, Beginning of Period	919,000,000
Accrual for update to estimated liability	14,000,000
Asbestos related liability payments	(20,000,000)
Asbestos Related Liabilities, End of Period	913,000,000
Asbestos Related Liabilities Insurance Recoveries [Line Items]
Insurance Recoveries, beginning of period	319,000,000
Probable insurance recoveries related to estimated liability	0
Insurance receipts for asbestos related liabilities	(4,000,000)
Insurance recoveries, end of period	$ 315,000,000

Listing of asbestos related liabilities, insurance recoveries

No definition available.

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

- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

+ Details

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

- Definition

Amount of cash outflow reducing loss contingency liability.

+ References

+ 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6851643&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 cash inflow from the collection of receivables related to a loss contingency.

+ References

No definition available.

+ Details

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

- Definition

Amount of additions to receivables pertaining to a loss contingency.

+ References

+ Details

Name:	us-gaap_LossContingencyRelatedReceivableCarryingValueAdditions
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: