Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Revenues	$ 1,051	$ 1,158
Operating Costs and Expenses
Cost of services (excluding depreciation and amortization)	832	906
Selling, general and administrative (excluding depreciation and amortization)	116	127
Research and development (excluding depreciation and amortization)	1	3
Depreciation and amortization	117	115
Restructuring and related costs	7	16
Interest expense	17	20
Goodwill impairment	0	284
(Gain) loss on divestitures and transaction costs	4	14
Litigation costs (recoveries), net	6	12
Other (income) expenses, net	2	(1)
Total Operating Costs and Expenses	1,102	1,496
Income (Loss) before Income Taxes	(51)	(338)
Income tax expense (benefit)	(2)	(30)
Net (Loss) Income	$ (49)	$ (308)
Earnings Per Share, Basic	$ (0.24)	$ (1.49)
Earnings Per Share, Diluted	$ (0.24)	$ (1.49)
Revenues	$ 1,051	$ 1,158