Consolidated Statements of (Loss) Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue
Revenue	$ 1,899	$ 2,164	$ 2,156
Cost of revenue
Cost of revenue	944	1,138	1,132
Gross profit	955	1,026	1,024
Operating expenses
Selling, general and administrative expenses	618	666	651
Research and development expenses	327	317	305
Total operating expenses	945	983	956
Income from operations	10	43	68
Interest expense	(26)	(22)	(15)
Interest income	12	14	11
Other expense	(9)	(8)	(6)
Total other expense, net	(23)	(16)	(10)
(Loss) income before income taxes	(13)	27	58
Income tax expense (benefit)	7	(3)	125
Net (loss) income	$ (20)	$ 30	$ (67)
Net (loss) income per weighted average common share
Basic (in usd per share)	$ (0.18)	$ 0.25	$ (0.53)
Diluted (in usd per share)	$ (0.18)	$ 0.25	$ (0.53)
Weighted average common shares outstanding
Basic (in shares)	114.2	119.2	125.8
Diluted (in shares)	114.2	121.2	125.8
Recurring
Revenue
Revenue	$ 1,362	$ 1,254	$ 1,145
Cost of revenue
Cost of revenue	442	374	304
Perpetual software licenses and hardware
Revenue
Revenue	106	340	429
Cost of revenue
Cost of revenue	84	222	259
Consulting services
Revenue
Revenue	431	570	582
Cost of revenue
Cost of revenue	$ 418	$ 542	$ 569