Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Total revenues	$ 392	$ 381
Costs and expenses:
Selling, general and administrative	84	68
Depreciation and amortization	74	90
Impairment loss		14
Operating loss	(7)	(29)
Interest expense, net	(78)	(49)
Other income, net	(1)	(3)
Loss before taxes	(84)	(75)
Income tax expense		2
Equity in loss from joint ventures, net of tax		1
Loss from continuing operations	(84)	(78)
Income from discontinued operations, net of tax		30
Net loss	$ (84)	$ (48)
Basic net income (loss) per common share:
Basic loss from continuing operations (in dollars per share)	$ (1.30)	$ (1.30)
Basic income from discontinued operations, net of tax (in dollars per share)		0.50
Basic net loss per common share (in dollars per share)	(1.30)	(0.80)
Diluted net income (loss) per common share:
Diluted loss from continued operations (in dollars per share)	(1.30)	(1.30)
Diluted income from discontinued operations, net of tax (in dollars per share)		0.50
Diluted net loss per common share (in dollars per share)	$ (1.30)	$ (0.80)
Product
Revenues:
Total revenues	$ 142	$ 107
Costs and expenses:
Product and service costs, excluding depreciation and amortization	148	145
Service
Revenues:
Total revenues	250	274
Costs and expenses:
Product and service costs, excluding depreciation and amortization	$ 93	$ 93