Reconciliation of assets (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Reconciliation of Assets
Assets	$ 83,649	$ 81,943
Intersegment Eliminations
Reconciliation of Assets
Inventory Methodology Difference	(3,441)	(3,063)
Intersegment Eliminations | Cash and Short Term Investments
Reconciliation of Assets
Assets	6,017	6,042
Intersegment Eliminations | Deferred Income Taxes
Reconciliation of Assets
Assets	2,287	2,098
Intersegment Eliminations | Goodwill and Intangible Assets
Reconciliation of Assets
Assets	4,437	4,248
Intersegment Eliminations | Property Plant and Equipment-Net and Other Assets
Reconciliation of Assets
Assets	4,523	4,234
Intersegment Eliminations | Liabilities Included in Segment Assets
Reconciliation of Assets
Assets	13,118	12,519
Intersegment Eliminations | Other
Reconciliation of Assets
Assets	(494)	(630)
Operating Segments | Reportable Segments
Reconciliation of Assets
Assets	55,407	54,667
Operating Segments | Reportable Segments | Construction Industries
Reconciliation of Assets
Assets	5,584	5,168
Operating Segments | Reportable Segments | Resource Industries
Reconciliation of Assets
Assets	5,719	5,775
Operating Segments | Reportable Segments | Energy & Transportation
Reconciliation of Assets
Assets	9,513	9,455
Operating Segments | Reportable Segments | Financial Products Segment
Reconciliation of Assets
Assets	34,591	34,269
Operating Segments | All Other operating segments
Reconciliation of Assets
Assets	$ 1,795	$ 1,828