Segment Information (Details 2) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Sales and revenues by geographic region
Revenues by geographic region	$ 709	$ 692
Revenues	12,859	9,822
Reportable Segments
Sales and revenues by geographic region
Revenues	12,936	9,877
All Other operating segments
Sales and revenues by geographic region
Revenues		37
Corporate items and eliminations
Sales and revenues by geographic region
Revenues	1,062	880
Construction Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	5,659
Revenues	5,659	4,091
Construction Industries | Corporate items and eliminations
Sales and revenues by geographic region
Revenues	18	9
Resource Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	2,208
Revenues	2,208	1,670
Resource Industries | Corporate items and eliminations
Sales and revenues by geographic region
Revenues	101	91
Energy & Transportation | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	4,276
Revenues	4,276	3,356
Energy & Transportation | Corporate items and eliminations
Sales and revenues by geographic region
Revenues	943	780
All Other | All Other operating segments
Sales and revenues by geographic region
Sales and revenues by geographic region	37
Machinery, Energy & Transportation
Sales and revenues by geographic region
Sales and revenues by geographic region	12,150
Machinery, Energy & Transportation | Reportable Segments
Sales and revenues by geographic region
Revenues	12,143	9,117
Machinery, Energy & Transportation | Corporate items and eliminations
Sales and revenues by geographic region
Sales and revenues by geographic region	(30)
Revenues	1,062	880
Financial Products
Sales and revenues by geographic region
Revenues by geographic region	709
Financial Products | Corporate items and eliminations
Sales and revenues by geographic region
Revenues by geographic region	(84)
Financial Products Segment | Reportable Segments
Sales and revenues by geographic region
Revenues by geographic region	793
Revenues	793	760
Financial Products Segment | Corporate items and eliminations
Sales and revenues by geographic region
Revenues	0	0
Business | Energy & Transportation | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	4,276
Business | Machinery, Energy & Transportation
Sales and revenues by geographic region
Revenues		9,130
Business | Machinery, Energy & Transportation | Reportable Segments
Sales and revenues by geographic region
Revenues		9,117
Business | Machinery, Energy & Transportation | All Other operating segments
Sales and revenues by geographic region
Revenues		37
Business | Financial Products
Sales and revenues by geographic region
Revenues		777
Business | Financial Products | Reportable Segments
Sales and revenues by geographic region
Revenues		760
Business | Financial Products | All Other operating segments
Sales and revenues by geographic region
Revenues		$ 0
North America
Sales and revenues by geographic region
Revenues	6,093
North America | Machinery, Energy & Transportation | Corporate items and eliminations
Sales and revenues by geographic region
Sales and revenues by geographic region	(28)
North America | Financial Products | Corporate items and eliminations
Sales and revenues by geographic region
Revenues by geographic region	(49)
North America | Business | Construction Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	2,620
North America | Business | Resource Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	798
North America | Business | Energy & Transportation | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	2,225
North America | Business | All Other | All Other operating segments
Sales and revenues by geographic region
Sales and revenues by geographic region	15
North America | Business | Machinery, Energy & Transportation
Sales and revenues by geographic region
Sales and revenues by geographic region	5,630
North America | Business | Financial Products
Sales and revenues by geographic region
Revenues by geographic region	463
North America | Business | Financial Products Segment | Reportable Segments
Sales and revenues by geographic region
Revenues by geographic region	512
Latin America
Sales and revenues by geographic region
Revenues	1,046
Latin America | Machinery, Energy & Transportation | Corporate items and eliminations
Sales and revenues by geographic region
Sales and revenues by geographic region	1
Latin America | Financial Products | Corporate items and eliminations
Sales and revenues by geographic region
Revenues by geographic region	(13)
Latin America | Business | Construction Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	344
Latin America | Business | Resource Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	360
Latin America | Business | Energy & Transportation | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	280
Latin America | Business | All Other | All Other operating segments
Sales and revenues by geographic region
Sales and revenues by geographic region	0
Latin America | Business | Machinery, Energy & Transportation
Sales and revenues by geographic region
Sales and revenues by geographic region	985
Latin America | Business | Financial Products
Sales and revenues by geographic region
Revenues by geographic region	61
Latin America | Business | Financial Products Segment | Reportable Segments
Sales and revenues by geographic region
Revenues by geographic region	74
EAME
Sales and revenues by geographic region
Revenues	2,776
EAME | Machinery, Energy & Transportation | Corporate items and eliminations
Sales and revenues by geographic region
Sales and revenues by geographic region	(3)
EAME | Financial Products | Corporate items and eliminations
Sales and revenues by geographic region
Revenues by geographic region	(5)
EAME | Business | Construction Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	1,067
EAME | Business | Resource Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	520
EAME | Business | Energy & Transportation | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	1,092
EAME | Business | All Other | All Other operating segments
Sales and revenues by geographic region
Sales and revenues by geographic region	4
EAME | Business | Machinery, Energy & Transportation
Sales and revenues by geographic region
Sales and revenues by geographic region	2,680
EAME | Business | Financial Products
Sales and revenues by geographic region
Revenues by geographic region	96
EAME | Business | Financial Products Segment | Reportable Segments
Sales and revenues by geographic region
Revenues by geographic region	101
Asia Pacific
Sales and revenues by geographic region
Revenues	2,944
Asia Pacific | Machinery, Energy & Transportation | Corporate items and eliminations
Sales and revenues by geographic region
Sales and revenues by geographic region	0
Asia Pacific | Financial Products | Corporate items and eliminations
Sales and revenues by geographic region
Revenues by geographic region	(17)
Asia Pacific | Business | Construction Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	1,628
Asia Pacific | Business | Resource Industries | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	530
Asia Pacific | Business | Energy & Transportation | Reportable Segments
Sales and revenues by geographic region
Sales and revenues by geographic region	679
Asia Pacific | Business | All Other | All Other operating segments
Sales and revenues by geographic region
Sales and revenues by geographic region	18
Asia Pacific | Business | Machinery, Energy & Transportation
Sales and revenues by geographic region
Sales and revenues by geographic region	2,855
Asia Pacific | Business | Financial Products
Sales and revenues by geographic region
Revenues by geographic region	89
Asia Pacific | Business | Financial Products Segment | Reportable Segments
Sales and revenues by geographic region
Revenues by geographic region	106
Oil and gas | Energy & Transportation
Sales and revenues by geographic region
Sales and revenues by geographic region	1,215
Power generation | Energy & Transportation
Sales and revenues by geographic region
Sales and revenues by geographic region	969
Industrial | Energy & Transportation
Sales and revenues by geographic region
Sales and revenues by geographic region	906
Transportation | Energy & Transportation
Sales and revenues by geographic region
Sales and revenues by geographic region	$ 1,186