Segment Information (Details 5) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Reconciliation of restructuring
Consolidated profit before taxes	$ 2,264	$ 2,134
Restructuring costs	(48)	(69)
Reportable Segments
Reconciliation of restructuring
Consolidated profit before taxes	2,710	2,510
Reportable Segments \| Construction Industries
Reconciliation of restructuring
Consolidated profit before taxes	1,085	1,117
Reportable Segments \| Resource Industries
Reconciliation of restructuring
Consolidated profit before taxes	576	378
Reportable Segments \| Energy & Transportation
Reconciliation of restructuring
Consolidated profit before taxes	838	874
Reportable Segments \| Financial Products Segment
Reconciliation of restructuring
Consolidated profit before taxes	211	141
All Other operating segments
Reconciliation of restructuring
Consolidated profit before taxes	25	57
Business
Reconciliation of restructuring
Consolidated profit before taxes	2,735	2,567
Restructuring costs	(39)	(67)
Consolidated profit before taxes with restructuring costs	2,696	2,500
Business \| Reportable Segments \| Construction Industries
Reconciliation of restructuring
Consolidated profit before taxes	1,085	1,117
Restructuring costs	(9)	(14)
Consolidated profit before taxes with restructuring costs	1,076	1,103
Business \| Reportable Segments \| Resource Industries
Reconciliation of restructuring
Consolidated profit before taxes	576	378
Restructuring costs	(14)	(44)
Consolidated profit before taxes with restructuring costs	562	334
Business \| Reportable Segments \| Energy & Transportation
Reconciliation of restructuring
Consolidated profit before taxes	838	874
Restructuring costs	(11)	(5)
Consolidated profit before taxes with restructuring costs	827	869
Business \| Reportable Segments \| Financial Products Segment
Reconciliation of restructuring
Consolidated profit before taxes	211	141
Restructuring costs	0	0
Consolidated profit before taxes with restructuring costs	211	141
Business \| All Other operating segments \| All Other
Reconciliation of restructuring
Consolidated profit before taxes	25	57
Restructuring costs	(5)	(4)
Consolidated profit before taxes with restructuring costs	$ 20	$ 53

Sum of operating profit and nonoperating income or expense including restructuring costs before income or loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest

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