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COMMITMENTS AND CONTINGENCIES 8 (Details) (United Auto Workers [Member], USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Pre-2003 Retirees [Member]
  
Other Matters Paragraph Details [Line Items]  
Potential Opeb Increase Due To Adverse Ruling $ 180hon_PotentialOpebIncreaseDueToAdverseRuling
/ hon_LossContingenciesByNatureOfContingency7Axis
= hon_UnitedAutoWorkersMember
/ us-gaap_TitleOfIndividualAxis
= hon_Pre2003RetireesMember
Post-2003 Retirees [Member]
  
Other Matters Paragraph Details [Line Items]  
Potential Opeb Increase Due To Adverse Ruling $ 120hon_PotentialOpebIncreaseDueToAdverseRuling
/ hon_LossContingenciesByNatureOfContingency7Axis
= hon_UnitedAutoWorkersMember
/ us-gaap_TitleOfIndividualAxis
= hon_Post2003RetireesMember