Discontinued Operations - Summary of Income (loss) from Discontinued Operations on Condensed Consolidated Statements of Comprehensive Income (loss) (Details) - Divested Business - Discontinued Operations, Disposed of by Sale - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 42	$ 577	$ 1,024
Cost of services, exclusive of depreciation and amortization	42	425	684
Depreciation and amortization	0	3	10
Gross Profit	0	149	330
Operating Expenses
Selling, general and administrative	0	89	164
Depreciation and intangible amortization	0	8	38
Goodwill Impairment	0	0	148
Total Operating Expenses	0	97	350
Income (loss) from Discontinued Operations	0	52	(20)
Other (income) expense, net	0	2	9
Income (Loss) from Discontinued Operations Before Income Taxes	0	50	(29)
(Gain) Loss on sale of disposition, net of tax	9	10	0
Income tax expense (benefit)	12	59	16
Net Income (Loss) from Discontinued Operations, Net of Tax	$ (21)	$ (19)	$ (45)