BUSINESSES HELD FOR SALE AND DISCONTINUED OPERATIONS - Financial Information for Discontinued Operations (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
RESULTS OF DISCONTINUED OPERATIONS
Earnings (loss) from discontinued operations, net of taxes	$ (64,000,000)	$ (85,000,000)	$ (210,000,000)	$ (286,000,000)	$ (339,000,000)	$ 602,000,000	$ (564,000,000)	$ (2,894,000,000)	$ (644,000,000)	$ (3,195,000,000)	$ (911,000,000)
Discontinued operations
RESULTS OF DISCONTINUED OPERATIONS
Total revenues									0	0	0
Cost of equipment and services sold									0	(398,000,000)	(2,555,000,000)
Other income, costs and expenses									(808,000,000)	1,393,000,000	1,586,000,000
Earnings (loss) of discontinued operations before income taxes									(808,000,000)	995,000,000	(968,000,000)
Benefit (provision) for income taxes									(32,000,000)	(335,000,000)	89,000,000
Earnings (loss) of discontinued operations, net of taxes									(841,000,000)	660,000,000	(879,000,000)
Gain (loss) on disposal before income taxes									58,000,000	(3,246,000,000)	(31,000,000)
Benefit (provision) for income taxes									139,000,000	(608,000,000)	(1,000,000)
Gain (loss) on disposal, net of taxes									196,000,000	(3,855,000,000)	(32,000,000)
Earnings (loss) from discontinued operations, net of taxes									(644,000,000)	(3,195,000,000)	(911,000,000)
Assets
Cash, cash equivalents and restricted cash	1,176,000,000				736,000,000				1,176,000,000	736,000,000
Financing receivables held for sale (Polish mortgage portfolio)	1,199,000,000				1,799,000,000				1,199,000,000	1,799,000,000
Property, plant, and equipment - net	73,000,000				88,000,000				73,000,000	88,000,000
All other assets	444,000,000				554,000,000				444,000,000	554,000,000
Assets of businesses held for sale	2,892,000,000				3,177,000,000				2,892,000,000	3,177,000,000
Liabilities
Accounts payable, equipment project payables and all other liabilities	1,137,000,000				887,000,000				1,137,000,000	887,000,000
Liabilities of businesses held for sale	$ 1,137,000,000				$ 887,000,000				1,137,000,000	887,000,000
Discontinued operations | GECAS
RESULTS OF DISCONTINUED OPERATIONS
Total revenues									0	0	0
Cost of equipment and services sold									0	(398,000,000)	(2,555,000,000)
Other income, costs and expenses									0	1,992,000,000	1,781,000,000
Earnings (loss) of discontinued operations before income taxes									0	1,594,000,000	(773,000,000)
Benefit (provision) for income taxes									0	(258,000,000)	(13,000,000)
Earnings (loss) of discontinued operations, net of taxes									0	1,336,000,000	(786,000,000)
Gain (loss) on disposal before income taxes									(18,000,000)	(3,312,000,000)	0
Benefit (provision) for income taxes									139,000,000	(570,000,000)	0
Gain (loss) on disposal, net of taxes									121,000,000	(3,882,000,000)	0
Earnings (loss) from discontinued operations, net of taxes									121,000,000	(2,546,000,000)	(786,000,000)
Depreciation and amortization									0	359,000,000	2,545,000,000
Discontinued operations | Bank BPH & Other
RESULTS OF DISCONTINUED OPERATIONS
Total revenues									0	0	0
Cost of equipment and services sold									0	0	0
Other income, costs and expenses									(808,000,000)	(599,000,000)	(195,000,000)
Earnings (loss) of discontinued operations before income taxes									(808,000,000)	(599,000,000)	(195,000,000)
Benefit (provision) for income taxes									(32,000,000)	(77,000,000)	101,000,000
Earnings (loss) of discontinued operations, net of taxes									(841,000,000)	(676,000,000)	(93,000,000)
Gain (loss) on disposal before income taxes									75,000,000	65,000,000	(31,000,000)
Benefit (provision) for income taxes									0	(38,000,000)	(1,000,000)
Gain (loss) on disposal, net of taxes									75,000,000	27,000,000	(32,000,000)
Earnings (loss) from discontinued operations, net of taxes									$ (765,000,000)	$ (648,000,000)	$ (125,000,000)