OTHER INCOME (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Associated companies	$ 0	$ 0
Total	6,869	847
Unrealized loss	(5,772)
BioPharma
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pretax gain on sale	12,292
ServiceMax
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pretax gain on sale		224
GE
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchases and sales of business interests	12,372	253
Sales	42	40
Associated companies	39	39
Net interest and investment income	(5,632)	137
Other items	53	384
Total	6,874	852
Eliminations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Associated companies	(23,991)	(26,318)
Total	(4)	$ (5)
Baker Hughes
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Unrealized loss	$ (5,710)