Segment Information (Details 6) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reconciliation of Depreciation and amortization
Total depreciation and amortization	$ 758	$ 798	$ 2,272	$ 2,368
Reportable Segments
Reconciliation of Depreciation and amortization
Total depreciation and amortization	647	695	1,956	2,056
All Other operating segments
Reconciliation of Depreciation and amortization
Total depreciation and amortization	68	70	202	209
Cost Centers
Reconciliation of Depreciation and amortization
Total depreciation and amortization	39	37	115	111
Other
Reconciliation of Depreciation and amortization
Total depreciation and amortization	4	(4)	(1)	(8)
Machinery, Energy & Transportation | Reportable Segments
Reconciliation of Depreciation and amortization
Total depreciation and amortization	437	466	1,318	1,391
Machinery, Energy & Transportation | Business
Reconciliation of Depreciation and amortization
Total depreciation and amortization	538	563	1,608	1,685
Machinery, Energy & Transportation | Business | Reportable Segments
Reconciliation of Depreciation and amortization
Total depreciation and amortization	437	466	1,318	1,391
Machinery, Energy & Transportation | Business | All Other operating segments
Reconciliation of Depreciation and amortization
Total depreciation and amortization	68	70	202	209
Machinery, Energy & Transportation | Business | Cost Centers
Reconciliation of Depreciation and amortization
Total depreciation and amortization	39	37	115	111
Machinery, Energy & Transportation | Business | Other
Reconciliation of Depreciation and amortization
Total depreciation and amortization	(6)	(10)	(27)	(26)
Financial Products | Business
Reconciliation of Depreciation and amortization
Total depreciation and amortization	220	235	664	683
Financial Products | Business | Reportable Segments
Reconciliation of Depreciation and amortization
Total depreciation and amortization	210	229	638	665
Financial Products | Business | All Other operating segments
Reconciliation of Depreciation and amortization
Total depreciation and amortization	0	0	0	0
Financial Products | Business | Cost Centers
Reconciliation of Depreciation and amortization
Total depreciation and amortization	0	0	0	0
Financial Products | Business | Other
Reconciliation of Depreciation and amortization
Total depreciation and amortization	$ 10	$ 6	$ 26	$ 18