OTHER INCOME (LOSS) - Schedule of Other Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Realized and unrealized gain (loss)	$ 665	$ 5,906
Other net interest and investment income (loss)	252	186
Licensing and royalty income	67	34
Purchases and sales of business interests	9	(52)
Other items	25	4
Total other income (loss)	$ 1,109	$ 6,081
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]	Total other income (loss)	Total other income (loss)
Other (income) loss
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity method income	$ 128	$ 0
Retained and sold ownership interests
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Realized and unrealized gain (loss)	628	5,908
GE HealthCare
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Realized and unrealized gain (loss)	616	6,093
AerCap
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Realized and unrealized gain (loss)	12	(195)
Baker Hughes
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Realized and unrealized gain (loss)	$ 0	$ 10