Intangible Assets and Goodwill (Details 2) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	$ 7,296
Impairments, beginning of period	(602)
Net goodwill, beginning of period	6,694
Goodwill Acquired	21
Goodwill impairment charge	0	$ 0
Other adjustments	(169)
Goodwill, end of period	7,148
Impairments, end of period	(602)
Net goodwill, end of period	6,546
Construction Industries
Changes in carrying amount of goodwill by reportable segment:
Net goodwill, beginning of period	275
Goodwill Acquired	0
Other adjustments	(10)
Net goodwill, end of period	265
Resource Industries
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	4,287
Impairments, beginning of period	(580)
Net goodwill, beginning of period	3,707
Goodwill Acquired	0
Other adjustments	(119)
Goodwill, end of period	4,168
Impairments, end of period	(580)
Net goodwill, end of period	3,588
Energy & Transportation
Changes in carrying amount of goodwill by reportable segment:
Net goodwill, beginning of period	2,542
Goodwill Acquired	21
Other adjustments	(38)
Net goodwill, end of period	2,525
All Other
Changes in carrying amount of goodwill by reportable segment:
Goodwill, beginning of period	192
Impairments, beginning of period	(22)
Net goodwill, beginning of period	170
Goodwill Acquired	0
Other adjustments	(2)
Goodwill, end of period	190
Impairments, end of period	(22)
Net goodwill, end of period	$ 168