Reconciliation of assets (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Reconciliation of Assets
Assets	$ 80,907	$ 82,793
Intersegment Eliminations
Reconciliation of Assets
Inventory Methodology Difference	(2,833)	(2,656)
Intersegment Eliminations | Cash and Short Term Investments
Reconciliation of Assets
Assets	5,403	8,428
Intersegment Eliminations | Deferred Income Taxes
Reconciliation of Assets
Assets	2,112	1,735
Intersegment Eliminations | Goodwill and Intangible Assets
Reconciliation of Assets
Assets	4,681	4,859
Intersegment Eliminations | Property Plant and Equipment-Net and Other Assets
Reconciliation of Assets
Assets	3,714	4,056
Intersegment Eliminations | Liabilities Included in Segment Assets
Reconciliation of Assets
Assets	11,973	10,777
Intersegment Eliminations | Other
Reconciliation of Assets
Assets	(528)	(706)
Operating Segments | Reportable Segments
Reconciliation of Assets
Assets	54,656	54,622
Operating Segments | Reportable Segments | Construction Industries
Reconciliation of Assets
Assets	5,439	4,547
Operating Segments | Reportable Segments | Resource Industries
Reconciliation of Assets
Assets	5,841	5,962
Operating Segments | Reportable Segments | Energy & Transportation
Reconciliation of Assets
Assets	9,394	9,253
Operating Segments | Reportable Segments | Financial Products Segment
Reconciliation of Assets
Assets	33,982	34,860
Operating Segments | All Other operating segments
Reconciliation of Assets
Assets	$ 1,729	$ 1,678