Intangible Assets and Goodwill (Details 2) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	$ 7,393
Impairments, beginning of period	(1,197)
Net goodwill, beginning of period	6,196
Goodwill Acquired	41
Goodwill impairment charge	0	$ 0
Other adjustments	67
Goodwill, end of period	7,501
Impairments, end of period	(1,197)
Net goodwill, end of period	6,304
Construction Industries
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	306
Impairments, beginning of period	(22)
Net goodwill, beginning of period	284
Other adjustments	6
Goodwill, end of period	312
Impairments, end of period	(22)
Net goodwill, end of period	290
Resource Industries
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	4,156
Impairments, beginning of period	(1,175)
Net goodwill, beginning of period	2,981
Other adjustments	40
Goodwill, end of period	4,196
Impairments, end of period	(1,175)
Net goodwill, end of period	3,021
Energy & Transportation
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	2,875
Goodwill Acquired	41
Other adjustments	19
Goodwill, end of period	2,935
All Other Operating Segments
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	56
Other adjustments	2
Goodwill, end of period	$ 58