Segment Information (Details 7) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Reconciliation of Capital expenditures
Total capital expenditures	$ 509	$ 740
Reportable Segments
Reconciliation of Capital expenditures
Total capital expenditures	404	507
All Other operating segments
Reconciliation of Capital expenditures
Total capital expenditures	20	16
Cost Centers
Reconciliation of Capital expenditures
Total capital expenditures	9	12
Timing
Reconciliation of Capital expenditures
Total capital expenditures	88	217
Other
Reconciliation of Capital expenditures
Total capital expenditures	(12)	(12)
Consolidating Adjustments
Reconciliation of Capital expenditures
Total capital expenditures	(3)	(9)
Consolidating Adjustments | Reportable Segments
Reconciliation of Capital expenditures
Total capital expenditures	0	0
Consolidating Adjustments | All Other operating segments
Reconciliation of Capital expenditures
Total capital expenditures	0	0
Consolidating Adjustments | Cost Centers
Reconciliation of Capital expenditures
Total capital expenditures	0	0
Consolidating Adjustments | Timing
Reconciliation of Capital expenditures
Total capital expenditures	0	0
Consolidating Adjustments | Other
Reconciliation of Capital expenditures
Total capital expenditures	(3)	(9)
Machinery, Energy & Transportation | Reportable Segments
Reconciliation of Capital expenditures
Total capital expenditures	158	210
Machinery, Energy & Transportation | Business
Reconciliation of Capital expenditures
Total capital expenditures	209	379
Machinery, Energy & Transportation | Business | Reportable Segments
Reconciliation of Capital expenditures
Total capital expenditures	158	210
Machinery, Energy & Transportation | Business | All Other operating segments
Reconciliation of Capital expenditures
Total capital expenditures	20	16
Machinery, Energy & Transportation | Business | Cost Centers
Reconciliation of Capital expenditures
Total capital expenditures	9	12
Machinery, Energy & Transportation | Business | Timing
Reconciliation of Capital expenditures
Total capital expenditures	88	217
Machinery, Energy & Transportation | Business | Other
Reconciliation of Capital expenditures
Total capital expenditures	(66)	(76)
Financial Products | Business
Reconciliation of Capital expenditures
Total capital expenditures	303	370
Financial Products | Business | Reportable Segments
Reconciliation of Capital expenditures
Total capital expenditures	246	297
Financial Products | Business | All Other operating segments
Reconciliation of Capital expenditures
Total capital expenditures	0	0
Financial Products | Business | Cost Centers
Reconciliation of Capital expenditures
Total capital expenditures	0	0
Financial Products | Business | Timing
Reconciliation of Capital expenditures
Total capital expenditures	0	0
Financial Products | Business | Other
Reconciliation of Capital expenditures
Total capital expenditures	$ 57	$ 73