REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS 4 (Details) $ in Millions	Dec. 31, 2018 USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Performance obligation - amount	$ 24,850
Within One Year [Member]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue Remaining Performance Obligation Percentage	56.00%
Greater Than One Year [Member]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue Remaining Performance Obligation Percentage	44.00%
Aerospace [Member]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Performance obligation - amount	$ 10,228
Home And Building Technologies [Member]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Performance obligation - amount	6,302
Performance Materials And Technologies [Member]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Performance obligation - amount	6,436
Safety And Productivity Solutions [Member]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Performance obligation - amount	$ 1,884