Discontinued Operations - Major Categories of Income (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]
Income (loss) from discontinued operations, net of tax	$ 0	$ 74
Net income (loss) attributable to noncontrolling interests of discontinued operations	0	1
Income from discontinued operations, net of tax	0	73
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]
Revenue of business segment sold	1	975
Selling, general and administrative expenses	0	139
Research and development expenses	0	15
Total operating expenses	2	893
Income from discontinued operations	(1)	82
Interest expense	0	0
Other income (expense), net	0	1
Income (loss) from discontinued operations before income taxes	(1)	83
Income tax expense (benefit)	(1)	9
Income (loss) from discontinued operations, net of tax	0	74
Net income (loss) attributable to noncontrolling interests of discontinued operations	0	1
Income from discontinued operations, net of tax	0	73
Product | 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]
Revenue of business segment sold	0	230
Costs of products and services sold	0	187
Cost of services | 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]
Revenue of business segment sold	1	745
Costs of products and services sold	$ 2	$ 552