CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue:
Total revenue	$ 539	$ 432	$ 1,572	$ 1,219
Operating expenses:
Selling, general and administrative	164	146	502	459
Research and development	47	36	140	110
Depreciation, amortization and impairments	96	111	289	336
Goodwill impairment	0	0	0	54
Restructuring and other	45	17	96	48
Operating income (loss)	34	(30)	106	(235)
Other (expense) income:
Interest expense	(120)	(131)	(360)	(379)
Loss on debt financing transactions	0	(1)	0	(1)
Gain (loss) on remeasurement of debt	12	(24)	30	(26)
Other income (expense), net	2	2	22	(8)
Total other expense, net	(106)	(154)	(308)	(414)
Net loss from continuing operations before income taxes	(72)	(184)	(202)	(649)
Income tax benefit (expense)	172	(3)	164	(8)
Net income (loss) from continuing operations	100	(187)	(38)	(657)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	87	76	329	193
Net income (loss) from continuing operations	$ 187	$ (111)	291	(464)
Net income (loss) attributable to SGC			$ 276	$ (479)
Per Share - Basic:
Net income (loss) from continuing operations (in dollars per share)	$ 0.99	$ (2.03)	$ (0.55)	$ (7.14)
Net income (loss) from discontinued operations (in dollars per share)	0.90	0.80	3.43	2.05
Net income (loss) attributable to SGC (in dollars per share)	1.89	(1.23)	2.88	(5.09)
Per Share - Diluted:
Net income (loss) from continuing operations (in dollars per share)	0.96	(2.03)	(0.55)	(7.14)
Net income (loss) from discontinued operations (in dollars per share)	0.88	0.80	3.43	2.05
Net income (loss) attributable to SGC (in dollars per share)	$ 1.84	$ (1.23)	$ 2.88	$ (5.09)
Weighted average number of shares used in per share calculations:
Basic (in shares)	96	95	96	94
Diluted (in shares)	99	95	96	94
Accumulated Loss
Other (expense) income:
Net income (loss) from continuing operations	$ 182
Net income (loss) attributable to SGC	182	$ (117)
Noncontrolling Interest
Other (expense) income:
Less: Net income attributable to noncontrolling interest	5	6	$ 15	$ 15
Services
Revenue:
Total revenue	408	337	1,216	919
Operating expenses:
Cost of Goods and Services Sold	90	86	273	250
Product sales
Revenue:
Total revenue	131	95	356	300
Operating expenses:
Cost of Goods and Services Sold	$ 63	$ 66	$ 166	$ 197