Segment Information (Details 2) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Reconciliation of Sales and revenues
Sales and revenues	$ 9,822	$ 9,461
Reportable Segments
Reconciliation of Sales and revenues
Sales and revenues	9,877	9,513
All Other operating segments
Reconciliation of Sales and revenues
Sales and revenues	37	38
Other
Reconciliation of Sales and revenues
Sales and revenues	(92)	(90)
Consolidating Adjustments
Reconciliation of Sales and revenues
Sales and revenues	(85)	(78)
Consolidating Adjustments | Reportable Segments
Reconciliation of Sales and revenues
Sales and revenues	0	0
Consolidating Adjustments | All Other operating segments
Reconciliation of Sales and revenues
Sales and revenues	0	0
Consolidating Adjustments | Other
Reconciliation of Sales and revenues
Sales and revenues	(85)	(78)
Machinery, Energy & Transportation | Reportable Segments
Reconciliation of Sales and revenues
Sales and revenues	9,117	8,770
Machinery, Energy & Transportation | Business
Reconciliation of Sales and revenues
Sales and revenues	9,130	8,780
Machinery, Energy & Transportation | Business | Reportable Segments
Reconciliation of Sales and revenues
Sales and revenues	9,117	8,770
Machinery, Energy & Transportation | Business | All Other operating segments
Reconciliation of Sales and revenues
Sales and revenues	37	38
Machinery, Energy & Transportation | Business | Other
Reconciliation of Sales and revenues
Sales and revenues	(24)	(28)
Financial Products | Business
Reconciliation of Sales and revenues
Sales and revenues	777	759
Financial Products | Business | Reportable Segments
Reconciliation of Sales and revenues
Sales and revenues	760	743
Financial Products | Business | All Other operating segments
Reconciliation of Sales and revenues
Sales and revenues	0	0
Financial Products | Business | Other
Reconciliation of Sales and revenues
Sales and revenues	$ 17	$ 16