SEGMENT FINANCIAL DATA (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Reconciliation of segment profit to consolidated [Abstract]
Total segment profit	$ 1,721hon_SegmentReportingSegmentProfitLoss	$ 1,596hon_SegmentReportingSegmentProfitLoss
Other income (expense)	12	111
Interest and other financial charges	(77)us-gaap_InterestAndDebtExpense	(79)us-gaap_InterestAndDebtExpense
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Stock compensation expense	(52)	(52)
Repositioning and other charges	(131)	(214)
Income before taxes	1,564	1,411
Segment Reporting Information [Line Items]
Product sales	7,364us-gaap_SalesRevenueGoodsNet	7,845us-gaap_SalesRevenueGoodsNet
Service sales	1,849us-gaap_SalesRevenueServicesNet	1,834us-gaap_SalesRevenueServicesNet
Net Sales	9,213us-gaap_SalesRevenueNet	9,679us-gaap_SalesRevenueNet
Total segment profit	1,721hon_SegmentReportingSegmentProfitLoss	1,596hon_SegmentReportingSegmentProfitLoss
Aerospace [Member]
Reconciliation of segment profit to consolidated [Abstract]
Total segment profit	752	703
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Repositioning and other charges	(48)	(76)
Segment Reporting Information [Line Items]
Product sales	2,463	2,692
Service sales	1,144	1,159
Net Sales	3,607	3,851
Total segment profit	752	703
Automation and Control Solutions [Member]
Reconciliation of segment profit to consolidated [Abstract]
Total segment profit	516	471
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Repositioning and other charges	(24)	(46)
Segment Reporting Information [Line Items]
Product sales	2,979	3,075
Service sales	285	287
Net Sales	3,264	3,362
Total segment profit	516	471
Performance Materials And Technologies [Member]
Reconciliation of segment profit to consolidated [Abstract]
Total segment profit	503	473
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Repositioning and other charges	(7)	(14)
Segment Reporting Information [Line Items]
Product sales	1,922	2,078
Service sales	420	388
Net Sales	2,342	2,466
Total segment profit	503	473
Corporate [Member]
Reconciliation of segment profit to consolidated [Abstract]
Total segment profit	(50)	(51)
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Repositioning and other charges	(52)	(78)
Segment Reporting Information [Line Items]
Total segment profit	(50)	(51)
Pension Plans, Defined Benefit [Member]
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Benefit plans income/(expense)	100	61
Other Postretirement Benefit Plans [Member]
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Benefit plans income/(expense)	$ (9)	$ (12)

Other income (expense) excluding equity of affiliated companies

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Costs recognized during the period for stock compensation (expense)

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Segment profit is measured as business unit income (loss) before taxes excluding general corporate unallocated expense, other income (expense), interest and other financial charges, pension and other postretirement benefits (expense), stock compensation expense, repositioning and other charges and accounting changes.

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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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Interest and debt related expenses associated with nonoperating financing activities of the entity.

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Net total Increase or Decrease in the accrual for restructuring costs during the reporting period.

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Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

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