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	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 24	$ 257
Cost of services, exclusive of depreciation and amortization	24	187
Depreciation and amortization	0	3
Gross Profit	0	67
Operating Expenses
Selling, general and administrative	0	37
Depreciation and intangible amortization	0	8
Goodwill Impairment	0	0
Total Operating Expenses	0	45
Income (loss) from Discontinued Operations	0	22
Interest expense	0	0
Other (income) expense, net	0	2
Income (Loss) from Discontinued Operations Before Income Taxes	0	20
Loss on sale of disposition, net of tax	7	0
Income tax expense (benefit)	1	15
Net Income (Loss) from Discontinued Operations, Net of Tax	$ (8)	$ 5