DISCONTINUED OPERATIONS - Major Categories of Income (Details) - USD ($) $ in Millions	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax	$ (61)	$ 94	$ 57	$ 73	$ (6)	$ 107	$ 100	$ 61	$ 130	$ 224	$ 163	$ 262	$ 435
Net income (loss) attributable to noncontrolling interests		1	(1)	1					0	1	0	(1)	1
Income (loss) from discontinued operations, net of tax		93	58	72					130	223	163	263	434
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Spin-Off of Atleos
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue											3,248	4,051	3,464
Selling, general and administrative expenses											537	457	447
Research and development expenses											52	70	73
Total operating expenses											2,937	3,698	3,016
Income from discontinued operations											311	353	448
Interest expense											(6)	0	0
Other income (expense), net											(23)	(11)	102
Income from discontinued operations											282	342	550
Income tax expense (benefit)											69	76	115
Income (loss) from discontinued operations, net of tax		(94)	(58)	(73)					(131)	(225)	213	266	435
Net income (loss) attributable to noncontrolling interests		$ (1)	$ 1	$ (1)					$ 0	$ (1)	0	(1)	1
Income (loss) from discontinued operations, net of tax											213	267	434
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Product | Spin-Off of Atleos
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue											784	1,077	1,017
Costs of products and services											633	946	818
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Service | Spin-Off of Atleos
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue											2,464	2,974	2,447
Costs of products and services											$ 1,715	$ 2,225	$ 1,678