Discontinued Operations - Major Categories of Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income (loss) from discontinued operations	$ 1	$ 67	$ 0	$ 147
Net income (loss) attributable to noncontrolling interests	0	(1)	0	0
Income from discontinued operations, net of tax	1	68	0	147
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	1,040	5	2,025
Selling, general and administrative expenses	0	169	1	308
Research and development expenses	0	15	0	30
Total operating expenses	0	950	5	1,847
Income from discontinued operations	1	90	0	178
Interest expense	0	0	0	0
Other income (expense), net	0	0	0	1
Income (loss) from discontinued operations before income taxes	1	90	0	179
Income tax expense (benefit)	0	22	0	31
Net income (loss) from discontinued operations	1	68	0	148
Net income (loss) attributable to noncontrolling interests	0	(1)	0	0
Income from discontinued operations, net of tax	1	69	0	148
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	265	0	498
Costs of products and services sold	0	209	0	398
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	775	5	1,527
Costs of products and services sold	$ 0	$ 557	$ 4	$ 1,111