Goodwill and Other Intangible Assets, Net (Details) (USD $) In Millions	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Goodwill [Line Items]
December 31,	$ 11,275
Acquisitions	32
Divestitures	(12)
Currency Translation Adjustment	197
Current Year	11,492
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,201		3,487
Accumulated Amortization	(1,408)		(1,563)
Net Carrying Amount	1,793		1,924
Finite And Indefinite Other Intangible Assets [Abstract]
Trademark with indefinite lives	554		613
Other Intangible Assets Gross Carrying Amount	3,755		4,100
Other Intangible Assets Accumulated Amoritzation	(1,408)		(1,563)
Intangible Assets Excluding Goodwill, Total	2,347		2,537
Goowill And Intangible Assets Paragraph Details [Abstract]
Amortization of intangible assets	125	119
Aerospace [Member]
Goodwill [Line Items]
December 31,	1,883
Acquisitions	0
Divestitures	0
Currency Translation Adjustment	8
Current Year	1,891
Automation and Control Solutions [Member]
Goodwill [Line Items]
December 31,	7,907
Acquisitions	32
Divestitures	(12)
Currency Translation Adjustment	175
Current Year	8,102
Specialty Materials [Member]
Goodwill [Line Items]
December 31,	1,291
Acquisitions	0
Divestitures	0
Currency Translation Adjustment	10
Current Year	1,301
Transportation Systems [Member]
Goodwill [Line Items]
December 31,	194
Acquisitions	0
Divestitures	0
Currency Translation Adjustment	4
Current Year	198
Patented Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,122		1,101
Accumulated Amortization	(729)		(676)
Net Carrying Amount	393		425
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,610		1,688
Accumulated Amortization	(453)		(399)
Net Carrying Amount	1,157		1,289
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	266		186
Accumulated Amortization	(89)		(84)
Net Carrying Amount	177		102
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	203		512
Accumulated Amortization	(137)		(404)
Net Carrying Amount	$ 66		$ 108

Finite and Indefinite Other Intangible Assets

Name:	hon_FiniteAndIndefiniteOtherIntangibleAssetsAbstract
Namespace Prefix:	hon
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	hon_GoowillAndIntangibleAssetsParagraphDetailsAbstract
Namespace Prefix:	hon
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Other Intangible Assets Accumulated Amortization

+ Details

Name:	hon_OtherIntangibleAssetsAccumulatedAmoritzation
Namespace Prefix:	hon
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Other Intangible Assets Gross Carrying Amount

+ Details

Name:	hon_OtherIntangibleAssetsGrossCarryingAmount
Namespace Prefix:	hon
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Intangible assets excluding goodwill and finite lived software

+ Details

Name:	hon_OtherIntangibleAssetsNet
Namespace Prefix:	hon
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The aggregate cost of a major indefinite-lived intangible asset class acquired, during the period, either individually or as part of a group of assets (in either an asset acquisition or business combination).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 44
-Subparagraph b

+ Details

Name:	us-gaap_AcquiredIndefiniteLivedIntangibleAssetAmount
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(2)

+ Details

Name:	us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43

+ Details

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e(1)

+ Details

Name:	us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

Name:	us-gaap_GoodwillLineItems
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Reflects net changes to the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142

+ Details

Name:	us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Write-off of the carrying amount of goodwill associated with all or a portion of a reporting unit that is sold in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e(3)

+ Details

Name:	us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration