SEGMENT FINANCIAL DATA (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Product sales	$ 8,052	$ 7,744	$ 23,671	$ 23,398
Service sales	2,069	2,060	6,020	5,919
Net sales	10,121	9,804	29,691	29,317
Total segment profit	1,895	1,720	5,594	5,287
Corporate Non Segment [Member]
Segment Reporting Information [Line Items]
Total segment profit	(82)	(59)	(210)	(157)
Aerospace [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Product sales	2,452	2,358	7,393	7,404
Service sales	1,205	1,243	3,484	3,681
Net sales	3,657	3,601	10,877	11,085
Total segment profit	780	663	2,395	2,252
Performance Materials And Technologies [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Product sales	1,846	1,924	5,320	5,822
Service sales	414	405	1,248	1,222
Net sales	2,260	2,329	6,568	7,044
Total segment profit	526	503	1,521	1,484
Home And Building Technologies [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Product sales	2,419	2,360	7,015	6,931
Service sales	371	341	1,064	923
Net sales	2,790	2,701	8,079	7,854
Total segment profit	458	441	1,267	1,213
Safety And Productivity Solutions [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Product sales	1,335	1,102	3,943	3,241
Service sales	79	71	224	93
Net sales	1,414	1,173	4,167	3,334
Total segment profit	$ 213	$ 172	$ 621	$ 495