Intangible Assets and Goodwill (Details 2) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	$ 7,217
Impairments, beginning of period	(1,197)
Net goodwill, beginning of period	6,020
Goodwill impairment charge	0	$ 0
Other adjustments	31
Goodwill, end of period	7,248
Impairments, end of period	(1,197)
Net goodwill, end of period	6,051
Construction Industries
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	296
Impairments, beginning of period	(22)
Net goodwill, beginning of period	274
Other adjustments	3
Goodwill, end of period	299
Impairments, end of period	(22)
Net goodwill, end of period	277
Resource Industries
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	4,110
Impairments, beginning of period	(1,175)
Net goodwill, beginning of period	2,935
Other adjustments	21
Goodwill, end of period	4,131
Impairments, end of period	(1,175)
Net goodwill, end of period	2,956
Energy & Transportation
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	2,756
Other adjustments	7
Goodwill, end of period	2,763
All Other
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	55
Other adjustments	0
Goodwill, end of period	$ 55