SEGMENT FINANCIAL DATA 2 (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Total segment profit	$ 1,848	$ 1,809
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest and other financial charges	(73)	(85)
Repositioning and other charges	(62)	(84)
Income before taxes	1,935	1,842
Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest and other financial charges	(73)	(85)
Stock compensation expense	(44)	(41)
Repositioning and other charges	(62)	(84)
Other	55	80
Income before taxes	1,935	1,842
Segment Reconciling Items [Member] \| Pension [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Pension ongoing income	198	151
Segment Reconciling Items [Member] \| Other Postretirement [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Pension ongoing income	13	12
Corporate
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Total segment profit	(41)	(76)
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Repositioning and other charges	$ 1	$ (56)

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