Condensed Consolidated Statements of Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue
Revenue	$ 807	$ 932	$ 2,556	$ 2,769
Operating Costs and Expenses
Cost of services (excluding depreciation and amortization)	656	724	2,068	2,148
Selling, general and administrative (excluding depreciation and amortization)	115	115	346	344
Research and development (excluding depreciation and amortization)	1	2	4	5
Depreciation and amortization	44	81	157	199
Restructuring and related costs	4	7	21	49
Interest expense	16	28	62	82
Goodwill impairment	0	287	0	287
(Gain) loss on divestitures and transaction costs, net	(188)	3	(696)	8
Litigation settlements (recoveries), net	1	0	6	(22)
Loss on extinguishment of debt	1	0	6	0
Other (income) expenses, net	(2)	(2)	(4)	(3)
Total Operating Costs and Expenses	648	1,245	1,970	3,097
Income (Loss) Before Income Taxes	159	(313)	586	(328)
Income tax expense (benefit)	36	(24)	148	(26)
Net Income (Loss)	$ 123	$ (289)	$ 438	$ (302)
Net Income (Loss) per Share:
Basic (in USD per share)	$ 0.75	$ (1.34)	$ 2.28	$ (1.42)
Diluted (in USD per share)	$ 0.72	$ (1.34)	$ 2.22	$ (1.42)