BUSINESSES HELD FOR SALE AND DISCONTINUED OPERATIONS - Discontinued Operations Narrative (Details) - USD ($)		3 Months Ended		6 Months Ended
	Jan. 03, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Spinoff | GE Healthcare
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest disposed of	80.10%
Discontinued operations after disposal, cash collected (paid)				$ 453,000,000
Discontinued operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Financing receivables held for sale		$ 0		0		$ 1,200,000,000
Discontinued operations | Bank BPH
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax non-cash charges		1,014,000,000	$ 201,000,000	1,189,000,000	$ 434,000,000
Capital contribution		1,599,000,000		1,797,000,000
Financing receivables held for sale		0		0
Discontinued operations | Bank BPH | Bank BPH
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Litigation reserves		$ 2,632,000,000		2,632,000,000		$ 1,359,000,000
Discontinued operations | GECAS | AerCap
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operations after disposal, cash collected (paid)				(171,000,000)
Discontinued operations after disposal, sales of product and services				84,000,000
Discontinued operations after disposal, purchases of products and services				$ 120,000,000