Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Total revenues	$ 1,723	$ 1,666	$ 1,804
Costs and expenses:
Selling, general and administrative	332	325	446
Depreciation and amortization	348	376	439
Impairment loss	47	14	586
Satellite insurance recovery		(183)
Loss (gain) on sale of assets	1	(136)	(33)
Operating income (loss)	2	295	(722)
Interest expense, net	(175)	(219)	(200)
Other (income) expense, net	(104)	(1)	1
(Loss) income before taxes	(69)	77	(923)
Income tax (benefit) expense	(22)	5	(48)
Equity in income from joint ventures, net of tax	(1)	(11)	(2)
(Loss) income from continuing operations	(46)	83	(873)
Income (loss) from operations of discontinued operations, net of tax	32	26	(377)
Gain on disposal of discontinued operations, net of tax	317
Income (loss) from discontinued operations, net of tax	349	26	(377)
Net income (loss)	$ 303	$ 109	$ (1,250)
Basic net income (loss) per common share:
Basic (loss) income from continuing operations (in dollars per share)	$ (0.76)	$ 1.39	$ (15.03)
Basic income (loss) from discontinued operations, net of tax (in dollars per share)	5.75	0.44	(6.49)
Basic net income (loss) per common share (in dollars per share)	4.99	1.83	(21.52)
Diluted net income (loss) per common share:
Diluted net (loss) income from continued operations (in dollars per share)	(0.76)	1.38	(15.03)
Diluted net income (loss) from discontinued operations, net of tax (in dollars per share)	5.75	0.43	(6.49)
Diluted net income (loss) per common share (in dollars per share)	$ 4.99	$ 1.81	$ (21.52)
Product
Revenues:
Total revenues	$ 633	$ 560	$ 697
Costs and expenses:
Product and service costs, excluding depreciation and amortization	615	593	775
Service
Revenues:
Total revenues	1,090	1,106	1,107
Costs and expenses:
Product and service costs, excluding depreciation and amortization	$ 378	$ 382	$ 313