SEGMENT FINANCIAL DATA (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Product sales	$ 8,079	$ 8,035	$ 15,619	$ 15,654
Service sales	1,999	1,956	3,951	3,859
Net sales	10,078	9,991	19,570	19,513
Total segment profit	1,910	1,847	3,699	3,567
Corporate Non Segment [Member]
Segment Reporting Information [Line Items]
Total segment profit	(67)	(49)	(128)	(98)
Aerospace [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Product sales	2,545	2,556	4,941	5,046
Service sales	1,129	1,223	2,279	2,438
Net sales	3,674	3,779	7,220	7,484
Total segment profit	819	791	1,615	1,589
Performance Materials And Technologies [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Product sales	1,800	2,013	3,474	3,897
Service sales	439	421	834	818
Net sales	2,239	2,434	4,308	4,715
Total segment profit	524	520	995	981
Home And Building Technologies [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Product sales	2,379	2,375	4,596	4,572
Service sales	357	301	693	581
Net sales	2,736	2,676	5,289	5,153
Total segment profit	420	412	809	772
Safety And Productivity Solutions [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Product sales	1,355	1,091	2,608	2,139
Service sales	74	11	145	22
Net sales	1,429	1,102	2,753	2,161
Total segment profit	$ 214	$ 173	$ 408	$ 323